y xa TeRAY ay Aga. a3 ) a NERY a} ag te tae 5 Aye Sora Seer: oe rE Ps, Oey Fe “Fs ru Sd ys shen tera ta oun Making Soil and Crops Pay More By a V-C FARMER Who Has Made a Life’s Study of How to Get Most Out of Soils and Crops in Various Sections of this Country ILLUSTRATIONS FROM PHOTOGRAPHS OF V-C CROPS and PHOTOS USED BY COURTESY OF United States Department of Agriculture; North Carolina, Illinois, Purdue, Wisconsin and Ohio Agricultural Experiment Stations; Dunham Co., S. L. Allen Co., Ginn and Co., Macmillan Co., Orange, Judd Co. Harris and Ewing, Underwood & Underwood. PUBLISHED AND COPYRIGHTED, 1918 By CROP BOOK DEPARTMENT of V-C Sales Offices VIRGINIA V-C Sales Offices Winston-Salem, N.C. CARO LI NA New York City Norfolk, Va. eye Baltimore, Md. Alexandria, Va. V-C Fertil | 1Zers Atlanta, Ga. Durham, N. C. , Columbia, 8. C. Charleston, 8. C. Jacksonville, Fla. Savannah, Ga. Cincinnati, Ohio Columbus, Ga. Shreveport, La. Memphis, Tenn. Fort Wayne, Ind. Montgomery, Ala. Richmond, Va. Mt. Pleasant, Tenn. ty ‘Transiee MAY er! MAKING SOIL AND CROPS PAY MORE Contents of Subjects Part One Agriculture the Foundation of Our Industrial Existence: cebessoilus: thesMarmer’s: Workshop. ie 1 o8 os. oa oe ae ee as Our Land Should Yield More Per Acre.—President Woodrow Wilson. What Luther Burbank Sees in Plant Life.—Luther Burbank...... Very Foundation of our Industrial Existence Overlooked.— Hon. DSHS GIUStON SEC OfeA GhiCULILUnee a ties aan een ete The Man Who Discovered How Plants Feed.—Baron Justus von LEO p Me oe See nec Aye es BAL ORO ga | Se MERIC Te T se SAU Se Henry Ward Beecher’s Farmer’s Creed.—Rev. Henry Ward Beecher. He Doubled the Yield of His Crops in One Season.—James J. Hill. A Great and Necessary Institution.—Prof. C. L. Newman....... iRroduwetivenesss With bermanency: a. -i6 one sae me oon Farming Is a Business Demanding the Best Men and Women.— DA fee aj RO IS ULORA A sa kctrays HORT ioe Soca ses ATs cots Coca ts Pee RO OE Washington Preached the Value of Fertilization.—George Washington One of the Foundation Industries of the World.................. Do Fertilizers Injure the Land.—Exr- Director Arthur Goss. ........ Will Fertilizers Wash Out of the Soil?—Ex-Director Goss. ........ Marvelous Possibilities of Soil Building.—Pres. Andrew M. Soule. The System of Agriculture Which Will Be Most Permanently Profit- le ——/ Dips Neinatehioal GMOH DEE oo bok Ao Soo BA Hab dnab anew eaee The Need of Greater Agricultural Efficiency: With Increased Production. Profits Not Wanting.............. Why the United States Is Not at the Top. ...... 2... .0.8 6. en Belgium 243 Pounds, United States 31 Pounds................... Goad Reason for'Greater Farm: Production... 0.0: 26.4 < conte ae es Food Production Not Keeping Pace With Population............ 30,000 New Mouths to Feed Every Week...................... Business of Farming Bound to Increase........................ Sian But Great ls the United States. .i.c.o. 062.2! I.c aro se tamton Ww b MAKING SOIL AND CROPS PAY MORE Contents of Subjects—Continued The Power and Profit of Soil Fertility: Nomurer) Profit, Phan Mertiley Wands. sa25. 6. seen ee ete American Farmer Produces Most Wealth...................... Soils Originally Had Plenty of Plant-Food- .........2..2..%n2 Je. Bigger Crops at Less Cost by Fertilization...................... What Happens When Crops Were Underfed.................... Larger and Miore’ Thrifty (Crops. aoes oa see eee ote ee Manure NotaebalancedsHentilizece perieraaee ei ceeiea tee eres Fertilizer Experiences of Successful Corn Growers............... Richest Agricultural County in the United States............... The Nation’s Greatest Asset Must be Conserved: An Investment for a Definite and Profitable Return ............ Idraoranaowlss Sroul Iheraualbiinyyy IDYVOMEMWOIN. 6 oa nee oc ooo cueseneguoocobue Multiplyine -ProductivesCapacity (Pays... 17. enh ee eee Aare (Snusaypliers} ye 1Sliveday MNCS. onc asco oom ocr acasacduscbucocesc A Sound; Agricultural! ‘Policy, Needed... 2.5.5... 9.0.0022400 860 ee Crops*Increased’‘Over vi'wo Billion=Dollars!: 23 42 eeee $1.30 or 4 Cents Worth of Fertilizer to the Acre................ Over $1,700 Net Profit Annually on One Acre for 18 Years....... Making the Farm an Efficient and Profitable Workshop......... A Few Interesting Facts for Farmers: A. Mullionaire Marmer’s* Views) .cateiet Oe oe 5 ete eee ee eee Why $140 an Acre Profit When Others Make $1,600............ Greatest) Grime sroducerssmest ine Vion Claman eee nena HarmerseMiusti Valves Good@Protitseemne eet ee eae Flows Viucheliseas Sillone Doll acreage ert ete eee eee 125) Yearsico Count as billions sushelser an sete ree ere How Plants Add to the Wealth of the World... .....000-05..00 MAKING SOIL AND CROPS PAY MORE Contents of Subjects—Continued Miles of Roots and Millions of Mouths: TRUOTORUSH ON ULaVete NYG exer ws ob au cRO ER Sacer heeD ca One one NRE) Oi cen eal TE 33 Ag ewa Greate riMlcersct tes tony eae arl te Alcea sais. oar oteuencusnre salieri he 33 Meavess WithwVillonsoneVMlOuthSemes aes s.cees seco cm onisccec- 34 What Agricultural Educators and Experiment Stations have The Found: General Tendency Is to Use Fertilizer in Too Small Amounts.... 35 Three Hundred Trillion Cells in One Day...................... 35 CrentaWasterOnstne Hatin ia fare te touty his eter eas oe ee 36 Piety Sillioncouse nea ders. tars oo ies eel - ahaha, Salts She Nay eyed d 36 What Constiutes(Good Parming? ooo n5 3 oes na oe ees 36 The Reliability of Commercial Fertilizers...................... 36 ProtiicaWornin oe armers Control... occ she. ieee oe ole Mees BY/ Fertile Soil and Bumper Crops for 4200 Years.................. 37 Meanimneelpple seed PAVGe2 9b ole ee Log d ae a awcise oaks 38 ncresncarvieldsweer Acre Did Die. omcv. co tte Ss,2 ae c so ee es awe 38 yw orincerestine \@OMmMpALisOMs nor ose ete cee eee 6 ee eee 39 WihysHome, Mixing ds NotiBest.. 0) a2 8 atk in Ree 8 39 indiana Parmers Bound Et Profitable: .. 5.0 ete bea cee 40 $5.00 Worth of Commercial Fertilizer Gave Greater Increase Than MRenkeRansto ts icine mae = areca eee a We oe legs = eeteiac Oe 40 india shows (87 ber Cent Imerease. . 0 fn. 5 ce cc tet ooo tote 40 What 30) Years. Experments“Proved: 5.25... 542.0 G02. 2a oe 40 Fertilized Wheat 94 Per Cent Plump. Unfertilized Wheat 51 Per crite liunrnpen teers SEN Cet eres pute ots eS. eee Al The Value of a Knowledge of Farm Management Principles.—Dr. 11 ics ASSL TGR Cale Rts ete CUE Card ae dO Re pC RC RI IE RS aE 41 2,000 Boys Produce Over 200,000 Bushels of Corn.—Dr. Seaman Ils TRAD Dinie.6-& Gi ole td did Olona cad Roce ore tos Samat OOS Once ir steric 42 Business of Farming a Banking Proposition: Why Are Your Soil and Crops Like a Bank Account?—Mr. Oliver Tx SSETBGIS y ASG SBS HORce OO Ie DIO IO OE IO OECD OID aDsOT 44 Soil and Crop Improvement Are More Important to the People of the United States Than Our Gold Production.—Mr. F. C. AST DAN AGITOTL Onn & Cpa tiche AAD pidge Cte GENO. Cea oe Cet na Oe OOS) 45 $1,000 for Fertilizers But Not for a Barn.—Mr. William Ingle... 47 The Banker and the Farmer.—John K. Ottley...........-++-++: 48 The Greatness of Our Country and Its Farming Industry........ 50 MAKING SOIL AND CROPS PAY MORE List of Questions and Answers Part Two PLANTS: \Wiloven Aine) TEMS. 66 oc aod co oto nee Fen AE ote ar RR nn pe ft Hows ovublantsuliviers. 3 ccnaame eee oe er ne ne ee eee Hows Dorelantsseprodiicewem esate eee enone How Do Seeds Germinates RL eR eee ie cet ee EE Na W ny ‘Are There One-Seed-Leaf anid Tw aad: Leaf Plants? ae PLANT NUTRITION: SOIL: Mi hat Are Or gonle and Inorganic) Substances?...40-0 444. see How Are Depleted Sai Restor Be eee RI ee aan Mid iO hee How Does Good Tillage Conserve and Restore Fertility?........ How Does Adding Plant-food to the Soil Conserve and Restore How Does Leac pice Deplete Soils? RENE SOU UE ey ee Eee Seay Ate How Does the C AEERIG of Leaching and Soil Wash Conserve and Restore: Pertilttyie: Ree ss panes oe ne ac ete oe ees a ee oor: WATER, AIR AND SUN: How Does the Sun Benefit Soils and Crops) src wok ee ae How Does Water Move in the Soil? RS ary Re A nage How. Does Water Carry, Plant-food? yest orts sient eta rater MAKING SOIL AND CROPS PAY MORE List of Questions and Answers—Continued TREATING THE SOIL: Are All Soils in Good Physical Conditions for Plant Growth?.... 83 Wihentshoulastandibesblawed’ a... on ook ec soe eee 84 How snould band BevPlowed 12 20-0 05.6.2 ne tae ees 85 How Does: Turning the Mand Help ft?. ©... oc ces teas ee 86 How Deep Should Land Be Plowed?.......................... 87 How Does Humus Conserve and Restore Fertility?............. 88 How Should Organic Matter Be Plowed into the Sip p Pat oe 89 When and How Should Land Be Subsoiled?................... 90 Wihen: Issubsoiline Benelicialt?. -~ stiscl san he oe ako os eee 91 Wihenvls Sabsoilimnestanmiuliieysss 06sec. oe ead oan 91 Wihy Are Deep; Mellow. Sols Best?.o 2152.02.06 es 2k ee 91 Why Should Soil Be Pulverized? 2). 2. os ba es od eae. 92 How May Soils Be Treated to Take Up and Hold More Water?.. 93 How Does Harrowing, Disking, Rolling, Ete., Help the Land?... 93 How Does the Chemical Composition of Soils ‘Affect Crop Growth? 93 How Does the Physical Condition of Soils Affect Plant Growth?. 94 How Does the Organic Content of Soils Affect Plant Growth?.. 95 PLANT FOOD: What Does the Plant Do if It Does Not Get Enough Food?..... 95 How Shall It Be Determined What Plant Food to Use?......... 95 What Must the Farmer Do if There Is Not Enough Food in the NSD ILS cen eas Sec te St oe OR LI a Rt? 96 What is Commercial Bertilizer?s 2.006 fo cn os eee ec eee 97 What Is a Complete er iilizenigertsge ry eee ek sees te ek 97 Are = Hillers;’ and, “Carriers” the Same? >. a4 os. 602. ss os os 97 Do High Grade Fertilizers Contain Filler?:....:............... 99 What Is Rock TEV OVOVSIO) CSTE Geen! conten g ONS AM ris ENS Geeted eareaes me ne Pe me 100 Wiha taisrAcidibhosphater<.eesnn sie se cihetie ste feces wack 100 How Does Phosphoric Acid Help the Plant?..........:........ 101 How Does Nitrogen or Ammonia Help the Plant?.............. 101 How Woes Potash Elelpithe Plantae ssa cee ace acess es. 101 FERTILIZERS AND FERTILIZING, OR FEEDING CROPS When Should Fertilizers Be Added DOU MEAS OU eat: es sates sa 101 How Should Fertilizers Be Applied to the Soil?................ 102 Is the Manner of Applying Fertilizers Important?.............. 102 May Fertilizers Be Applied Profitably to Growing Crops?....... 104 Is There More Than One Way to Apply Fertilizer?............. 105 How Is Fertilizer Applied Broadeast?..:...........2.0:.0005:. 105 How, Is Fertilizer Applied in‘the Mnill?... 2... He ee ee ees 106 ilowslssHeniilizersAppliedeantthe Hallye aaa.) a6 eee see 108 When Should Fertilizer Be Applied in the Drill or Row?........ 108 When Should Fertilizer Be Applied Broadeast?................. 108 How Is Fertilizer Applied Interculturally?..................... 109 How Is Fertilizer Applied as a Top Dresser?................... 110 What Advantage Has Top Dressing to Crops?................. 111 Do Fertilizers Make the Soil LRU KGL ONC ee ae tee URE Sei ene) annie MRSS iti! MAKING SOIL AND CROPS PAY MORE List of Questions and Answers—Continued Do Fertilizers Improve the Quality and Increase the Market Value OL Cropste, ones Sees § Sheers Sey be eth ie eee 113 SOIL CONDITIONS: What Soil Conditions Must Be Present If Fertilizers Are to Be d DUCA AEN Ges ean Oe nee ey eR Eee ace OM INT EAN Oeics qetbin h o aI8 e 114 How Shall “Acid Soils: Be Corrected?) . 3 .0..¢e 0. ccc osc een ens 115 DoesiiherColononmsoileAtiect: Crop Growin erie 115 What bitects) Have Vlanuresion Cropsitensae ie eenen eter 116 Is It Important to Have a Good Seed Bed?................... 116 GOOD SEEDS: Are Good Seeds Necessary to Produce Good Geos PRES OEE i, 117 Is It Important to Plant Only Good Varieties?................. 118 How May Crops Be Improved by Seed Selection?.............. 119 Do Fertilizers Improve the Quality, Vitality and High Repro- ductive: Power Seedstsnac desman eee cee oe Reese ee 20 How Do Crops Cross and Become Mixed?.................... 120 What Distances Should Gaen Be Given:in the Row ti... .s+s 95. 122 Does Good Soil Preparation Make Cultivation More Effective?. . 125 What Benefits Are Derived from Cultivation?................. 123 When and How Should a Crop Be Cultivated?................ 124 With What Implements Should a Crop Be Cultivated?......... 125 WihysDo: Plantsvblave Roots! tt cntsie creck es ces gree Se 126 Why Is Cultivation So Important in Dry Seasons?............. ne How Late Should Cultivation Be Continued?................-. 127 ROTATION OF CROPS: Whats Rotation of Crops ic. on. 7e@fhees nature grow in water. Drainage ¢ GPP RO and irrigation are the means em- EY TRS ployed by the farmer to get rid of Ka \ < excess of water and to secure the Hae The Soil proper supply when there is a The soil atmosphere-aR © deficiency. AT} & Food builds the plant. Plant- Ahly Woter food is taken from both the air ANY. and the soil, entering the leaves from the air and the roots from the soil. The food which comes from the soil must be in solution or dis- solved in water before the plant A clover plant, showing its parts in relation : ; to the soil and atmosphere. From the at- ean take it up. Water is the mosphere and water the plant derives oxy- : ; 5 gen, carbon, and hydrogen. From the soil vehicle which conveys the soil-food _ the’mineral’ plant-food elements are taken. into the plant and is the distribu- ting agent which takes it to such parts of the plants as need food. Air is the medium in which the above-ground parts of the MAKING SOIL AND CROPS PAY MORE 59 plant live, just as the soil is the medium in which the under- ground parts of the plant live. Carbon, next to water, is the most abundant material of the many which enter the plant. Carbon comes from the air and passes into the plant through the pores of the leaves. Carbon Dioxide of the air is decomposed when it enters the plant with the air, the carbon remaining and the oxygen going back into the air. Thus plants take carbon out of the air and liberate oxygen, while animals take oxygen from the air and liberate carbon. Soil Conditions that are congenial to plants are important factors in the lives of plants. There are many conditions of the soil that are favorable, and many that are unfavorable, and a knowledge of these conditions will enable the farmer to plant certain crops where certain conditions most favorable to them are present and avoid unfavorable conditions. Drainage, plow- ing, cultivation, organic matter, lime, air, water, temperature, sunshine, bacteria, insects, manures and fertilizers change soil conditions, and enable plants to live or interfere with their growth, as the case may be. Insects and Diseases of many kinds and in vast numbers are ever laying in wait for their attack upon plants, and the farmer must be alert at all times so that he may avoid or destroy them. Nature supplies the necessities of plants only in part, and by Divine command man is responsible for the good care and abundant feeding of the crops he grows. Man must protect his crops from their enemies, and supply them with their needs if his crops are to give abundant harvests. Each plant is endowed with life, with its own peculiar ana- tomical structure, and performs in its own way its nature-given physiological functions. In living its life, each plant employs natural laws and sciences from the germination of the seed on through to the final goal of reproduction; and solution, absorp- tion, capillarity, osmosis, diffusion, adhesion, cohesion each performs its necessary functions in enabling plants to live and grow, toreproduce and ripen. The growing of plants is intimately associated with nature’s benign mysteries, and man has much to learn from them. By the slow processes of evolution, the more rapid processes of breeding, and the employment of arti- ficial nutriment, plants have made the world a better place to live in. And still better will the world be when the farmer 60 MAKING SOIL AND CROPS PAY MORE knows his soil and knows his crops so that he may best treat his soil and best feed his crops, which in a great measure is the mission we hope to fulfill with this little book. It was the great scientist Darwin who likened the roots of plants to the brain of animals on account of their great dis- crimination and ingenuity. Their tiny finger-like rootlets go feeling their way into the soil for nourishment as well as to fix the plant which is to sprout from its roots perfectly secure in its abiding place. Question: WHY ARE THERE ONE-SEED-LEAF AND TWO-SEED-LEAF PLANTS? Answer: All of the important farm crops fall under two clas- sifications and their separation into these two groups naturally follows the differences in their habits of growth and their struc- ture. One-seed-leaf plants germinate from their seeds by send- ing up one leaf first, while two-seed-leaf plants send up two leaves. Corn, wheat, grasses, etc., are samples of the one-seed- leaf class, and cotton, beans, cabbage, etc., are examples of the two-seed-leaf plants. One-seed-leaf plants grow from the in- The germination of Corn (one-seed-leaf plant) and Bean (two-seed-leaf plant) showing progressive stages from germination to mature plant. side, have no bark, their leaf veins are parallel and they have no tap root. Two-seed-leaf plants grow by additions to the out- side, have a distinct bark, their leaf veins are netted, and they MAKING SOIL AND CROPS PAY MORE 61 have a distinct tap root. The difference in the root systems affects the manner of growing of these two classes of plants, since the tap rooted crops feed deep and the fibrous root crops feed shallow. The rotation of these two classes aids the farmer in his efforts to conserve his soil’s fertility and produce each crop more economically and more profitably. Plant Nutrition Question: WHAT ARE THE ORGANIC AND INORGANIC SUBSTANCES? Answer: The several materials or substances which the plant takes into its structure are of two classes; inorganic or mineral; and organic, or vegetable and animal. The inorganic portion of the food of plants is in all soils in varying quantities and varying proportions and varying com- binations. They are silica, iron, aluminum, soda, magnesia, lime, potash, phosphoric acid and sulphur. We know that all of these substances are plant-foods since they are found in the ashes of all plants when the ashes are analyzed. If only one of the elements essential to plant growth is not present, plants will not grow. Most of them are present in all soils and in quantities sufficient for the needs of large crops. Since, how- ever, all of them are necessary to plant growth the absence of one or even the presence of a too small amount of one will proportionally limit the growth of a crop. To correct these defects it becomes necessary to apply to the soil the elements that are deficient or wanting. This is done by applying good commercial fertilizers—plant-foods. The organic portion of the food of plants is also found in all soils and most of them in quantities sufficient for the needs of the largest yields of crops. The organic elements are oxygen, hydrogen, carbon and nitrogen. The first three are always available for the fullest development of any plant, but only occasionally is there enough nitrogen present. These inorganic and organic substances are plant-foods, but all of them must be present in abundance and in a form available to the plant to be grown, otherwise the plant cannot grow. Question: WHAT IS PLANT-FOOD? Answer: Plant-food is the materials taken from the soil and air by means of roots and leaves, and is transformed within the 62 MAKING SOIL AND CROPS PAY MORE plant into cellular structures which make the many parts of the plant. Plant-food is the material of which plants are made, entering the plant either dissolved in water or as a gas. Dif- ferent parts of plants and different products of plants vary widely in composition. An onion, a sugar beet, a tomato and a pepper plant may each be growing in a tobacco field under identical conditions, living upon the same food, yet each will develop its characteristic size, shape, color, flavor, odor and composition. The superlative value of plants comes from the fact that they can take from the soil and air the same raw ma- terials, manufacturing a variety of products not equalled any- where else in Nature. Each plant in its own way is a chemical laboratory where a certain class of products is manufactured, and every genus, every species of plant has its own proprietary products manufactured from the. same raw materials. These raw materials are plant-food. How necessary it is that these raw materials, in both kind and quantity, be within reach of each plant in a field so that all may best serve man as Nature intended they should. Question: WHERE DO PLANTS GET THEIR FOOD? Answer: Plants get their food partly from the soil in which they grow and partly from the air surrounding them. The young roots push their way through the soil and form many root branches. The tip of each root is armed with strong cells Cross-Section of a Single Root Hair so clustered as to make the tip sharp-pointed. As the cells multiply and enlarge behind the tip it is pushed forward into the soil. Just back of these tips the surface cells of the young roots develop a multitude of very minute thread-like projections MAKING SOIL AND CROPS PAY MORE 63 called root-hairs. These act as mouths, through which the food enters the plant. Other plant-foods come from the air, entering the plant through openings in the leaves. Plants are prolific feeders or eaters, for they eat constantly, not only three times a day as you and Ido. Hence, as they take food from the soil’s larder we must replenish this larder so that the plants will not starve. Question: SHOULD THE HOME OF PLANTS BEA CONGENIAL ONE? Answer: Animals may move from place to place in search of food, but plants must depend upon the limited area of the soil in which they live for all they get for their growth. Conse- quently the soil is the home of the plant, and if we expect a good crop we must make the homes of the plants which make up a crop congenial homes. Plants, like animals, if not satisfied with their surroundings will show by their growth and other behavior that conditions are not favorable to their full develop- ment. A congenial soil is one that is deep, well pulverized, through which water circulates in every direction freely and uniformly, in which there is a good amount of organic matter undergoing decomposition, and in which there are always present the plant- food constituents necessary for the development of the plant. In addition to the natural conditions of the soil, favorable to plant growth, there are changes which must be made by plow- ing, harrowing, cultivating, drainage, and other means, all of which aid in making the soil a congenial home for the plant. The farmer must know what natural and artificial conditions the soil must possess, and he must see that these conditions are present. No plant will find the soil a congenial home if there is not an abundant supply of plant-food in the proper form demanded by the plant and available for its use. Soil Question: WHAT IS SOIL? Answer: Soil is made from the disintegration of the earth’s surface, and to be soil proper in the agricultural sense, it must contain in addition to air, water and scluble mineral elements, a good supply of organic matter undergoing decomposition. No soil is a good soil without decomposing organic matter or humus 64 MAKING SOIL AND CROPS PAY MORE for it modifies extreme conditions which might affect the plant; makes the soil friable and loose, and enables it to hold more moisture. It also supplies plant-food in its best form for the best growth of the crop. Soils are divided into two broad classes. One controlled by the chemical composition of the soil, the other by its physical properties. There are hundreds of different kinds of soil, each varying in characters and composition. Thus, £ a soil may be a sandy soil, a clay soil, ¢ or a lime soil, depending upon which of these materials predominates; or, it may be a coarse soil, a fine soil, or a gravelly soil. Again, soils may be classified into light soils, if they are easily worked, heavy soils, if they are worked with : : : ; : Section of soil showing Soil Particles difficulty. Either extreme is objection- and Air Spaces. able, and the addition of an abundance of organic matter in the form of farm manures or plants plowed into the soil will make a heavy soil lighter and light soil heavier. Question: WHAT IS SUBSOIL? Answer: Soil proper is the thin surface which represents the depth to which a field has been plowed and the depth into which organic matter has been incorporated. Just under this strata lies the subsoil, in the position it was left when formed from the original rock from which it came. The subsoil is a great storehouse for mineral plant-food, and it may be formed into new soil by bringing it to the surface a little at a time, so that water, air, temperature, and the dissolving influences of organic matter undergoing decomposition may crumble it and liberate the plant-food it contains. Many fields produce poor crops on account of the soil being too shallow. This may in part, at least, be remedied by deeper plowing, so that the depth of the soil may be increased and the crop have ample room for the spread of its roots in search of food and water. Question: ARE THERE MANY KINDS OF SOILS? Answer: There are two larger groups of soils, and these are: sedentary and transported. The first lies over the rock from which it was formed or has not been moved, and the second has MAKING SOIL AND CROPS PAY MORE 65 been moved by water, glacier, wind or gravity. Soils may be residual, cumulos, alluvial, glacial, aeolian-loess or colluvial, ac cording to their origin. The kind of rock from which soils are formed make different soils, and if these are mixed their classi- fication becomes complex. Each of the above may be further classified accordingly to the size of the soil particles. Clay soils are composed of the finest particles, clay loam next, and then silt loam, loam, fine sandy loam, sandy loam, fine sand, sand, coarse sand, gravelly loam and gravel. Each of these have their peculiar properties, varying in character and composition. Knowledge of soils is important, since such knowledge aids greatly in determining what crops will grow best on the soil of a farm and how the different soils should be cultivated. A knowl- edge of the character, composition and condition of a soil aids greatly in determining how each should be treated and what fertilizers will give the best results when applied to them. Question: HOW ARE SOILS FORMED? Answer: The natural processes of soil formation have been going on since the beginning of the world. The presence and activities of plants and animals have contributed a great deal to soil formation. There are many agencies at work in making soil. Every root and every insect or other animal that enters the soil aids in the admission of air and water. Air and water are The soil as shown in the bottom of illustration has been formed by the disintegration of the rock above. This process of disintegration is continuous and is caused mainly ‘by the action of air, water, and temperature. 66 MAKING SOIL AND CROPS PAY MORE the two great altering influences operating to change the inert surface of the earth into soil possessing conditions suitable to plant growth. Every drop of water and every breath of air entering the soil have the power of changing it so that it may be more suitable to plant growth. Change of temperature, espe- cially freezing and thawing, crush and loosen soil particles, thus exposing new surfaces for the action of air and water. This process has been going on since the beginning of time and will continue until the end of time. Accessory to these influences we have the action of animals and plants in their various ways, all of which tend to aid in the formation of soils. Even the dead bodies of animals and plants give out juices or chemicals which have dissolving power, and assist, still further, in reducing the inert and dead soil so as to make it better and better each year for supplying food to plants and through plants to animals. Question: DO CROPS FIND ENOUGH PLANT-FOOD IN TAR SOME’ Answer: Soils are formed from rocks which are broken up or disintegrated by several natural agencies. The resulting soils contain the materials of which the rocks were formed, and since there are many kinds of rocks of extremely variable composi- tion, the compositions of soils vary with the compositions of the materials forming them. It follows that many soils are deficient in some of the necessary plant-food elements. Soils are also subject to erosion by rain-water, and portions of plant-foods are washed away and other portions are dissolved by water and lost. When crops are grown they take from the soil varying quantities of plant-foods and these foods are removed in the crop. The yield of a crop is a measure of the plant-food available in the soil in which the crop grows. If there is an abundant supply of plant-food the crop will be a good one. If the plant-food is deficient the crop will be poor in proportion to the deficiency. Question: WHAT IS A FERTILE SOIL? Answer: A fertile soil is a congenial home for plants to live and grow in. It must be deep, well pulverized, contain a great variety of soil particles, have an ample supply of organic matter, permit air to pass into it and circulate through it, and permit water to pass into it and circulate freely without stagnating. Above all a fertile soil is one that in addition to the possession of desirable physical qualities contains an ample supply of all the plant food necessary to plants for their growth. MAKING SOIL AND CROPS PAY MORE 67 Question: WHAT IS A POOR SOIL? Answer: There are many things that may be responsible for a soil being poor or infertile. Some soils naturally are hard, harsh and uncongenial to crops and may contain insufficient quantities of plant-food. Such soils must be appropriately treated to develop a good physical condition, and must have plant-food added if they are to produce profitable crops. Soils may be deficient in phosphoric acid, nitrogen or potash; they may be deficient in one or in two of these elements or they may The upper field, without fertilizer, yielded but 8 bushels of potatoes and 6 bushels of corn per acre. The lower field, treated with fertilizer, produced two fine clover crops, the second crop being turned under and furnishing fertility for an 87 bushel per acre crop of potatoes and a 57 bushel per acre yield of corn. be deficient in all three. The element of plant-food present in the smallest quantity becomes a limiting factor. Some soils become poor through unwise or neglectful management. This may result from surface washing, shallow plowing and absence of a sufficient amount of organic matter in the soil to keep it in a wholesome condition. Such soils may be restored to a high degree of fertility by judicious plowing, thorough pulverization, the addition of organic matter and proper plant-food. No soil can be fertile if it is supplied with any one of these three ele- ments in an amount insufficient to supply the demands of the crops to be grown on it, 68 MAKING SOIL AND CROPS PAY MORE Fertility Question: HOW MAY SOILS BE MADE FERTILE? Answer: Since physical condition and chemical composition are responsible for soils being fertile or infertile, it naturally follows that making a soil fertile must be preceded by a knowl- edge of it present condition. Soils may be made fertile by in- creasing their depth, by pulverizing their particles, by increasing their power to hold water, by controlling leaching and _ soil wash, by the addition of organic matter, by rotation of crops, and by judicious and appropriate application of available plant- food. Corn to which no fertilizer has been applied. Compare this crop with that on page 69 and see what a difference the application of Complete Fertilizer makes in a crop. Question: HOW ARE SOILS DEPLETED? Answer: Soils are depleted of fertility or made poor by tillage, by leaching, by washing, by the removal of plant-food in the crops taken from the land, and by the failure of the farmer to keep up the supply of humus and plant-food found in the soil when it was in its virgin state. Question: HOW DOES TILLAGE DEPLETE SOILS? Answer: The virgin soils in forests or prairie contain the maximum amounts of plant-food and an abundant and annually- added-to supply of humus making materials. When brought into cultivation not only is this annual supply of organic matter stopped, but the accumulations of many years decomposes and is leached or washed away. Thus tillage or growing crops depletes the soi] of fertility or makes it poor by dissipating or destroying its good physical properties and by loss of plant food. MAKING SOIL AND CROPS PAY MORE 69 Question: HOW DOES CONTINUOUS CROPPING DEPLETE SOILS? Answer: The continuous cropping of a field in one crop or closely related crops, and especially if the crop or crops demand clean culture will rapidly deplete a soil of its fertility. Some crops draw heavily upon the soil’s supply of phosphorus, others draw heavily upon the supply of nitrogen and others upon the supply of potash. This exhausts most soils. Continuous croppings subject a soil to the same treatment year after year and untoward excesses and abuses follow, diseases and insects accumulate and the soil becomes depleted of its plant-food supply, it loses its good physical properties and becomes poor. This corn has had the necessary plant-food elements supplied by an application of Complete Fertilizer. Corn such as this will bring big returns. Question: HOW DOES THE REMOVAL OF CROPS FROM THE SOIL DEPLETE IT? Answer: The growing of crops and their removal from the land to a high degree impoverishes soils, since each pound, bushel or ton of crops taken from the soil carries from it a definite quantity of all the elements of fertility. The quantity of plant food removed from the soil is proportionate to the yield or quantity of crop removed. If an acre of land produces 30 bushels of corn that acre loses 30 pounds of nitrogen, 5.1 pounds of phosphorus, and 5.7 pounds of potash. If the acre was made to grow ten crops of corn there would be removed from it 70 MAKING SOIL AND CROPS PAY MORE 300 pounds of nitrogen, 51 pounds of phosphorus and 57 pounds of potash. The Missouri Experiment Station grew corn alone on the same land for seventeen years and at the end of that time the yield had been reduced to 11.8 bushels per acre. The same station, with corn in a rotation with legumes and with the addition of plant-food, secured 77.8 bushels of corn at the end of the seventeen year period. This potato patch on farm of Mr. Dell Ross, Rural Point, Va., was not fertilized and as a result the crop was very poor. j Soils may in many ways become depleted of their fertility but the two main causes of soil poverty are due to soil wash and the removal of plant-food in the crops taken from the land. A fertile soil is a soil maintained in a good physical condition and containing an ample supply of plant-food for the crops that it is expected to produce. If a soil is not maintained in a good physical condition and does not contain, or is not given, the plant food necessary for profitable crops it is a poor soil. Question: HOW ARE DEPLETED SOILS RESTORED? Answer: Soils should not be allowed to lose their fertility. When a soil becomes poor something is wrong with its owner or with those who have been responsible for its care. The time may come when there are no poor soils. Something is lacking when a soil is poor. In China lands that have been cultivated for forty centuries are now maintained at a high degree of fer- MAKING SOIL AND CROPS PAY MORE ral tility. In Europe lands that have been cultivated for hundreds of years are now producing twice to four times as much as the comparatively new lands of many of our American States. It should be a crime to wear out soil. Not only the present gen- eration, but all future generations own it. We of the present generation are but keepers of this “divine heritage,” the soil. If we neglect or abuse it we are not only exercising poor citizen- ship and wasting our talents and sustenance but we are recreant to a divine trust. This is the same field on Mr. Ross’ farm. Note the fine appearance of this Potato Field. This crop followed the one shown on page 70 the same season. Mr. Ross fertilized the second crop liberally with V-C Fertilizers and as a result has a fine Potato crop. V-C points the way to greater Soil Fertility and Increased Yielding per acre. Question: HOW DOES GOOD TILLAGE CONSERVE AND RESTORE FERTILITY? Answer: Good tillage that conserves the qualities and com- position of soils will aid in the restoration and maintenance of fertility. Deep plowing done at the right time and in the right way and thorough pulverization of the soil are the foundations upon which productive soils rest and accompany or precede other means by which depleted soils are restored and maintained. Question: HOW DOES ADDING PLANT-FOOD TO THE SOIL CONSERVE AND RESTORE FERTILITY? Answer: Depleted or poor soils are restored or made fertile by restoring the elements of plant-food that have been lost or re- 72 MAKING SOIL AND CROPS PAY MORE moved. These elements are phosphoric acid, nitrogen and potash and one of the greatest triumphs of science is the discovery of means and methods by which these indispensable plant-foods conveyed by fertilizers may be returned to the soil and not only restore its lost power of production but make it more fertile than when it was in its virgin state. Clover on right was fertilized with manure, limestone and rock phosphate, that on left with manure alone. The two patches received the same seeding. Manure alone is not a balanced Fertilizer, as the above clearly shows. Though we may practice the best systems of farming, only a small part of the plant-food taken from the soil in crops can be returned to it. Railroads groan under the loads of farm products that daily leave the farms. There is a shortage the world over in ships for carrying abroad the products of farms. Every pound of these millions of tons of farm products carry from the farm its precious plant-food and year after year this drain increases. “Any system of farming that does not provide for the return to the soil of as much plant-food as is removed by the crops will deplete the fertility of the soil.” H. J. Waters. A bale of cotton with its accompanying seed contains 33 pounds of nitrogen, 13.1 pounds of phosphoric acid and 13.9 pounds of potash. Twenty-five bushels of corn with its accompanying stover contains 40.5 pounds of nitrogen, 16.5 pounds of phosphoric acid and 27 pounds of potash. To restore the plant-food removed by a bale of cotton and its accompanying seed will require 200 pounds of nitrate of soda, 82 pounds of 16% acid phosphate, and 110 pounds of kainit; total 392 pounds of fertilizer. MAKING SOIL AND CROPS PAY MORE 73 To restore the plant-food removed by 25 bushels of corn and its accompanying stover will require 250 pounds of nitrate of soda, 104 pounds of 16% acid phosphate, and 211 pounds of kainit; total 565 pounds of fertilizer. To restore the 93 pounds of nitrogen, 19 pounds of phos- phorus and 63 pounds of potash contained in two tons of cowpea hay would require 581 pounds of 16% nitrate of soda, 120 pounds of acid phosphate and 504 pounds of. kainit; total 1205 pounds of fertilizer. The same data may be worked out for all crops and nothing is more evident, in the premises, than that continued taking from, without giving to the soil will deplete it; and, that restoring the removed plant-food together with good farm practices will maintain the soil’s fertility indefinitely. Question: WHY IS IT MORE PROFITABLE TO OWN AND CULTIVATE FERTILE FIELDS? Answer: It requires as much preparation, cultivation and other care for growing a crop that will produce say 15 bushels of corn to the acre as it does for the production of 30 bushels per acre. In the first case the crop merely pays for itself, and in the second it gives 100 per cent profit over the cost of production. It costs a certain proportion or per cent of each crop to bring it to maturity, and the yield in excess of the cost of production is profit. In addition to this great advantage which fertile soils have over poor soils is the fact that quantity and quality of crops grown on poor soils is greatly reduced and the opportunity of the farmer is materially limited. Fertile fields not only help to increase yields per acre but also increase the quality of crops, as well as assuring an earlier maturity of crops, which is often so essential and profitable. Drainage Question: IS GOOD DRAINAGE ESSENTIAL TO GOOD CROPS? Answer: Too much water standing for any considerable length of time on or near the surface of a soil destroys ordinary farm crops. - While water is of prime necessity to plants, never- theless they may drown in too much water. Man must have water if he is to live, but he too may drown in water. Many millions of dollars are annually lost by farmers who attempt to cultivate land that is too wet, and millions of acres of the best 74 MAKING SOIL AND CROPS PAY MORE cultivated lands in the United States were once too wet to cultivate, and there are millions more of the best land in need of drainage which will be unproductive until drained. Drainage removes surplus water, deepens the soil, prevents too great dilution of plant-food; improves the quality and texture of soils by making them porous and friable; admits air with its food- making and purifying oxygen; enables plants to stand drouth better, to send their roots deeper; it warms the soil and extends the period of plant growth; it checks winter killing of crops; crops start growing earlier in the spring and continue longer in growth in the fall; it aids in the healthful development of bene- ficial bacteria; seeds will germinate better in drained land; crops rot less and are more easily gathered from drained land than from land in need of drainage; and good drainage also improves the health of the community as well as the crops. y he acct - : Undrained land showing standing water, which makes crop production impossible. This condition is common in many sections of the country. Question: WHAT ARE THE INDICATIONS OF THE NEED OF DRAINAGE? Answer: The need of drainage is often very evident, while in many cases it is not so evident. Not knowing that a field or a part of a field needs drainage, farmers often cultivate it for years MAKING SOIL AND CROPS PAY MORE 75 at a loss, while proper drainage would enable them to reap rich profits. The need of drainage is indicated by water standing on the land after rains, by the cracking of the surface when it dries, by clods and harsh soil texture when plowed, by the growth of plants commonly found in wet places, by the water table being near the surface of the soil, etc. After a wet season irregu- lar areas in fields often show their need of drainage by the slow growth and poor color of growing crops, because the plant-food has been washed away. Lands showing any of the above indi- cations of an excess of water, though they be shown for but a short while, are in need of proper drainage. The | same iad as on Satine page, after tile drainage. Cowpeas and Corn are now grown with excellent results as the illustration shows. Question: HOW MAY WET LANDS BE DRAINED? Answer: The drainage of wet lands is an old practice and like other old practices was at its beginning primitive. There are various ways in which land may be drained so that it may be free of surplus water. Open ditches and underground drains are for the removal of water. If large quantities of water ac- cumulate on the surface or are brought from adjacent areas, open ditches may be best employed, but wherever they can be replaced with tile this should be done. The open ditch is always changing its course, filling in places, taking up land which should grow crops and divides fields; they are unsightly and grow up with weeds and bushes that harbor insects, noxious weeds and plant diseases. They require constant attention and are ex- pensive to maintain. Other materials like stone, poles, plank, etc., may sometimes be used in its place, but nothing is so de- sirable, effective and durable as drain tile made of burnt clay. Any one with ordinary intelligence will find no difficulty in following instructions for locating ditches for tile, digging them and laying the tile, and instructions may be had of any of the State Experiment Stations or of the National Department of Agriculture. Tile may be put down at seasons of the year 76 MAKING SOIL AND CROPS PAY MORE when there is not much work to be done on the farm and when crops are not on the land. Question: HOW DOES SOIL WASH DEPLETE SOILS? Answer: One may find encrmous areas of abandoned land almost anywhere through the upper coastal plain or the Pied- mont section of the Southern States, through many sections of the Middle and New England States and even in the Middle and Far West. This is particularly noticeable in the upper portions of the Southern States where the land is rough and rolling. Fields scarred with gullies and bare from neglect are too common in many States. The criminal neglect of land has been called “‘the crime of gullying.’”’? It is an inexcusable neglect and a criminal waste. Had this land been wisely cared for, this picture could not have been made. Good farming will prevent such waste of land. The time has come when the whole world needs the bountiful fruitfulness of every acre and these wasted areas should be put towork. They are wasted, poor and starving, they need good care and abundant nourishment. This wholesale impoverishment is very largely due to a lack of control of rain water. When rain falls faster than the soil can take it up it will accumulate on the surface after the soil has become saturated. Then, if the land is not level, this water will flow in the line of least resistance to some stream. When soil is saturated with water the weight of the particles of soil is greatly reduced or the particles are buoyed and nearly float; the water which surrounds them lubricates them, and with a slight fall to the land the surplus water washes soil, plant-food, organic matter, and fertilizers into the streams below. The natural agencies previously spoken of are constantly operating in making soil, and if the surface washing carries soil away as fast as it is made the land necessarily becomes poorer and poorer. Not only will its good physical properties be destroyed but the plant-food which it contains will also be carried away. VARIOUS STEPS IN TILE DRAINAGE. 1—Trenching machine. Man in rear laying tiles by hand. 2—Testing grade of trench by use of grading line and rod. 3—A pile of drain tiles and tools used in laying tile. 4—Levelling cross bar to support grading line in making drain trench level. 5—Finishing grade with tile scoop. The scoop levels the bottom of trench so the tiles will lay properly. 6—Laying tile by hand. 7—Open drain ditch for tile outlet. 8—The use of tile hook in laying tiles. This is one of the best methods. 78 MAKING SOIL AND CROPS PAY MORE The greatest cause of soil depletion is erosion or soil wash. Especially is this true on soils that are rolling or soils of rough topography and when clean-culture crops are grown. Many soils in the South lose more fertility by the washing away of the soil than by all other causes contributing to the loss of fertility. Question: HOW DOES LEACHING DEPLETE SOILS? Answer: When plant-food leaches from the soil it is carried away by its being dissolved in water, the water having passed to a depth beyond the reach of the roots of crops. The shallow soils which are so common in many sections of the country, and the worn soils and the over-cropped soils are all more subject to leaching than are better soils. Deep, well-pulverized soils, and especially soils that are filled with humus, are less affected by leaching than soils in a poor condition. In the better soils the water is retained and utilized to a greater extent, consequently more plant-food is taken up and plant-food which would have been leached is held in the soil, partly in new combinations and partly stored in the crop. A soil that is subjected to leaching loses each year a part of the plant-food which it contains, thereby becoming poorer and poorer. ‘To restore a soil that has been impoverished by leaching is often a slow process, but can be accomplished by deep, thorough preparation, good drainage, the addition of humus to the soil, by appropriate rotations, by adding Commercial Fertilizers and manures, and by protecting the surface from washing. Question: HOW DOES THE CHECKING OF LEACHING AND SOIL WASH CONSERVE AND RESTORE FERTILITY? Answer: Leaching of plant-food and the washing away of the soil itself are prevented or at least reduced to a minimum by the control and utilization of rain water. Deep plowing, thor- ough pulverization of the soil, abundant organic matter in the soil and growing crops all tend to cause increased quantities of water from heavy rains to enter the soil and be held by it. Leach- ing and washing are best prevented by treating the soil by every means possible that will induce it to take up and hold the greatest amount of water. Nothing is more necessary to plant growth than water and often the available water supply is the limiting factor in crop production. Water, the most necessary thing for the utilization of plant-food by the crop, may be the cause of the loss of more plant-food than all other losses from all other causes and the first and most necessary means for the MAKING SOIL AND CROPS PAY MORE 79 restoration of a soil depleted of fertility is water control. A field deeply plowed, finely pulverized and well filled with humus will hold many times more water than a field with a shallow, hard, compact soil with little humus in it. Thus, depth of soil, fineness of its particles and a high humus content checks leaching and washing and restores lost fertility. Some fields are so steep or have such a fall that all of the water falling during a heavy rain cannot be taken up by the soil. In such eases it is all the more necessary that these fields be maintained in crops that cover the ground well and fill the soil with their roots and thus check both washing and leaching. A bare soil suffers more from washing and leaching than a soil covered with a crop. Another highly efficient and often neces- sary means for controlling the run-off of heavy rains is the terrace. Terraces are banks thrown up with a depression above A Magnum Terrace in North Carolina. Terraces such as the above control the flow of rain water and prevent fields from washing and leaching. them for holding surplus water. The terraces are made at intervals and preferably should have a fall that will enable the surplus water to slowly pass away. The more slowly it drains away the greater the quantity that will soak into the ground; and that which does flow from the field is in such decreased quantity and goes off at so reduced a velocity that but little damage can be done. King estimates the soil materials an- nually carried by the Mississippi River to the Gulf of Mexico to be so great that it would cover seventy-two sections of land to a depth of four feet. The erosion of fields in cultivation east and south of the Appalachian mountains is enormous. In the 80 MAKING SOIL AND CROPS PAY MORE South where cotton and tobacco are important crops the most momentous farm management problem is soil wash and a more rational system of farming will restore hundreds of thousands of depleted acres to a fertility they have never known. Surface washing may best be prevented by so checking the flow of water which passes off over the surface so as to rob it of its power to do harm. This may be done by the following means: deep plowing and subsoiling which will open, loosen, and pulverize the soil so that it will take up and hold more water; the addition of organic matter in the form of stable manure or plants plowed down; the sowing of broadcast crops, especially those which occupy the ground for a year or more, by judicious rotation, and by mechanical means such as ter- races and hillside ditches which collect the water at intervals and earry it off slowly in broken quantities rather than allowing it to pass rapidly in large volumes. Crops requiring cultivation such as cotton, tobacco, corn and many others, especially when these crops are cultivated on beds or ridges are responsible for a very large portion of the loss of fertility by soil wash. This is especially true when these intertilled crops are for two or more years in succession grown on the same land. The avoidance of such practice and the following of a wise system of rotation with appropriate fertili- zation will check soil wash and conserve soil and plant-food. Sun, Air and Water Question: HOW DOES THE SUN BENEFIT SOILS AND CROPS? Answer: The sun is both a vitalizer and a disinfector. Its heat and light makes the earth habitable. The sun is the giver of rain and dew, and causes the air to move. The sun as a direct source of energy stores carbon in plants, and when their carbon is taken into the animal system as food it supplies the animal with heat and energy. Growing plants draw their food and water from the soil, which passes on to the leaves where, with the combined action of the green principle (chlorophyll) of plants and of sunshine, the food materials become digested food and returns to the various parts of the plant to become leaf, branch, bark, root, flower or fruit. If the sun is to do its work well plants must have an abundance of plant-food at their base or in their storehouse. The soil gets its heat from the sun. Without sunshine soils become uncongenial to plants. Crops will not thrive without MAKING SOIL AND CROPS PAY MORE 81 sunshine. Too much direct sunshine may temporarily injure soils that are plowed wet and left in a cloddy condition. The sun aids the oxygen of the air while this most active of all elements is doing its duty in the soil or in the plant. Starches and sugars would not be formed were it not for the glorious sunshine, nor would flowers have their color and fragrance, nor fruit its blush and flavor. Question: HOW DOES AIR BENEFIT SOILS AND CROPS? Answer: The atmosphere or air is composed of about four parts of free nitrogen to one part of free oxygen. Nitrogen is the most expensive element that plants are composed of, and oxygen probably is the least expensive. Oxygen is the most active, the most important and one of the most abundant sub- stances in nature. It is found in combination with nearly every other element. It is actively engaged in the development or growth of living tissues, and is largely responsible for the break- ing down by decay or burning of all tissues. It is the most active and hardest worked element in nature. Air also contains car- bonic acid gas diffused through it, and this enters the plants through their leaves, and, by the action of the sunlight and the green parts of the leaves the oxygen is separated and goes back into the air. The carbon becomes a part of the plant, the main part, since live plants contain more carbon than any other one thing except water, while dry plants are often half carbon. The nitrogen of the air through the instrumentality of bacteria inhabiting the roots of legumes, enters into combinations in the legume and nourishes it. Question: HOW DOES WATER MOVE IN THE SOIL? Answer: When rain-water falls it continues to soak into the ground until all the spaces between the soil particles are filled. If, after the soil becomes filled with water, rain continues to fall faster than it sinks deeper into the ground, the surplus water will flow off. The water in the soil will continue to sink deeper and deeper until it has drained out from between the surface soil particles down to where water stands permanently in the soil. The depth down to this permanent water measured from the surface represents the distance of the water table from the surface. This water table rises when considerable rain falls and becomes lower in dry weather. Water is constantly travelling, one might say, from the water table upward to the surface where is passes into the air or is evaporated. Water moves by 82 MAKING SOIL AND CROPS PAY MORE crawling over the surface of the particles of soil, consequently, the amount of water that moves and the rapidity with which it moves depends to a great extent upon the number of particles composing the soil and the nearness of these particles to each other. Roots of plants penetrate the soil passing between its particles, and the movement of water keeps them supplied with this important part of their food. 20 FEET ‘oh Ae a “WATER TABLE: — =STORED WATER 30 FEET — The above diagram shows how water moves in the soil. Water goes into the soil by gravity, and circulates throughout the soil by the capillary action of the soil particles. A parc of the water in the soil returns to the air by evaporation. Question: HOW DOES WATER CARRY PLANT-FOOD? Answer: The food that plants take out of the soil enters the plant in solution or dissolved in water. If you will place a tea- spoonful of sugar or of salt in a glass of water and stir it the sugar or salt will be dissolved or passes into solution. Since water forms the function of both dissolving or taking into MAKING SOIL AND CROPS PAY MORE 83 solution plant-food and of carrying plant-food, one can appre- ciate better the importance of an abundance of water for sup- plying readily the roots of plants with all the food that they are capable of taking up. Plant-foods in solution occupy equally all parts of the liquid in which they dissolve, thus giving every tiny rootlet an opportunity to choose in quality and quantity the plant-food it needs. Treating the Soil Question: ARE ALL SOILS IN GOOD PHYSICAL CON- DITION FOR PLANT GROWTH? Answer: They are not, and no soil in poor physical condition can produce the best crops. A fertile soil may be in poor physi- cal condition and produce only poor crops, while an infertile soil in good physical condition will produce good and profitable crops with proper treatment and liberal fertilization. Some soils are naturally harsh, hard, tenacious and cloddy. Water does not circulate in them well, they do not pulverize well when Poorly drained soils puddle in wet weather and crack open as their surfaces become dry. Either may cause the winter killing of small grain. Compacting the soil in early spring with roller will be very beneficial to the crop. The roots loosened by the winter’s freezes will be pressed into the soil and evaporation of water from the soil will be checked. 84 MAKING SOIL AND CROPS PAY MORE plowed or cultivated, nor do they respond to commercial fer- tilizers. Roots of plants do not penetrate them well, and the plant-food in them is not in a readily available form. The de- fects of such soils may be corrected by drainage, fall plowing and subsequent freezing, the addition of organic matter, appli- cations of lime, harrowing and rolling when they are neither too wet nor too dry. The physical properties of clay and clay loam soils are often seriously injured by being plowed when they are too wet. The addition of organic matter or lime, or both, and their being plowed rough late in the fall and exposed to the freezing effects of winter will add greatly to the physical and other good qualities of soils. The modern method of plowing. The tractor today is a mighty factor in America’s Agri- cultural Program, and the need of them is Bowe daily. If America is to feed the world her farmers must produce more per acre. V-C Fertilizers will make your Soil and Crops Pay More. Question: WHEN SHOULD LAND BE PLOWED? Answer: It is out of the question to attempt to give any iron- clad rules that might be followed in determining when land should be plowed. On the other hand, under special condition it is not difficult to know the best time for plowing land. Land MAKING SOIL AND CROPS PAY MORE 85 as a rule should be plowed long enough before the crop is planted so as to give an opportunity for its thorough discing, harrowing, and other means for pulverizing and crushing, and that it may settle through the influences of rain-water falling between the plowing and the time the seed are sown. If a considerable quantity of stable manure, pea-vines, clover or other green manuring crops are to be plowed down, or if stubble or other crop residue covers the surface, it is a decided advantage to plow such lands far enough in advance of the preparation of the seed bed to allow these materials plowed down to g0 through at least a partial decomposition. Land should not be plowed when too wet. If plowed at such times, especially if it contains a considerable amount of clay, great injury will result. Neither should land be plowed when it is too dry since such soils will be broken with great difficulty, and the large clods that are left will seriously inter- fere with good crop production. Land plowed in the fall so that the newly brought up soil may be exposed to the freezing effects of winter will receive greater benefit from plowing than land plowed at any other time. Question: HOW SHOULD LAND BE PLOWED? Answer: This question is one susceptible to so many answers and subject to so many exceptions that it can only briefly be discussed here. In the first place the plow used should be one Turning under the sod in the fall. The ee ae up soil will be ees to the freezing effects of winter and the sod turned under will form organic matter, which every soil needs in abundance so that the plant-food in the soil will be avialable for the use of the crop grown. 86 MAKING SOIL AND CROPS PAY MORE that is especially adapted to doing the kind of work you wish done in the soil to be plowed. The object of plowing is to break, partly turn over, and pulverize a certain depth from the sur- face. In different soils, at different seasons of the year and for different crops the depths to which a soil should be plowed will vary. Again, the character of the soil, the amount of organic matter it may contain, and the depth to which it has been pre- viously plowed will all have an important bearing upon the manner of plowing that should be done in each case. wo foe £ Sod at ERENCE Another view of plowing with a tractor. On the vast fields of America the tractor is gradually taking the place of the horse, and is daily doing work that was impossible with the horse, Question: HOW DOES TURNING THE LAND HELP IT? Answer: The surface of the soil is constantly exposed to drying influences, to the effects of the sun, and the changes of tem- perature; it is upon the surface of the soil that organic matter naturally accumulates, so it naturally follows that it is on the surface of soil where the most sudden, the most extreme, and the most important changes take place. It is the surface of the soil that suffers most from washing, and is benefited most by the action of air, temperature, and other natural soil-making agencies. It is also well understood that a uniform and homo- geneous soil is best adapted to plant growth. If soils are not turned there will be a wide variation between the characters and conditions of the surface and the characters and conditions at a depth of a few inches. Further, there is a gradual sifting of the MAKING SOIL AND CROPS PAY MORE 87 small particles of the soil downwards, and it is at the bottom of the plowed area where these small particles stop and accumulate, stupping up the pores or capillary tubes which establish com- munication between soil and subsoil and permit air, water, and roots of plants to penetrate readily. When the land is turned there is an opportunity for the mixing of the lower and upper parts of the soil area turned. The manner of plowing will vary as the quantity of organic matter to be plowed down increases or decreases, and with the depth to which the soil has been previously plowed, as well as with the character of the subsoil and the degree of differences or changes which take place as one goes down. If a considerable amount of organic matter of any character is to be plowed into the soil the organic matter should be pulverized and well mixed with the surface of the soil to a depth of two, three, or more inches before the plowing is done. This will give a better dis- tribution of the material plowed down, help the soil very much in developing its ability to take up and hold water, and to dis- tribute that water uniformly throughout the soil. Depending upon several circumstances land may be turned completely over, or the plow slice may be turned on edge. The deeper the plowing the more necessary it is to leave the plow slice on edge. When land is plowed in this manner it gives a more thorough mixing of the bottom and top soils, thus making them better absorbers and holders of water and in other ways more congenial to plant growth. Question: HOW DEEP SHOULD LAND BE PLOWED? Answer: This question is susceptible to a great many answers. The depth to which a soil has been previously plowed, the character of the soil, and the amount of organic matter it con- tains, all these have a bearing upon the proper depth to which any given soil should be plowed. The aim, however, should be to gradually deepen all soils until a sufficient depth of good soil has been made for the full exercise of the functions of the plant for the attainment of its full growth. A soil that is 8 inches deep will hold twice as much plant-food and twice as much water as a soil 4 inches deep. A deep soil withstands extreme cold and extreme heat very much better than a shallow soil. The best way to increase the depth of the soil is to plow a little deeper each time it is broken until the desired depth has been reached. Care should be taken, however, to increase the amount of organic matter added to the soil in proportion to the 88 MAKING SOIL AND CROPS PAY MORE increase in soil depth. Merely plowing deep and bringing to the surface the subsoil will not make soil of it. Soil is made through the combined action of heat, cold, and organic matter, all three of which act together in bringing ‘about the changes In the character and composition of soils which best adapt them to an abundant plant growth. When a soil is made deeper it is a great advantage that the plowing which increases its depth be done in the fall or early winter. When done at this time opportu- nity is given for the breaking up and crumbling effects of freezes. If the deepening is done in late spring or summer the direct effect of the sun and wind often produces such a cloddy condition that a year or more will pass before it becomes thoroughly congenial to soe growth. A soil in good physical condition for plant growth. The roots of a plant can easily penetrate a soil such as this, and obtain plant food. If V-C is the plant food applied the farmer can be assured of a bountiful crop. A deep soil suffers very much less from surface washing than a shallow soil, and in the deepening of the soil we find one of the best means for a conservation of plant-food. Fertilizers applied to a shallow soil are more apt to be leached from them and lost than when applied to a deep soil. Question: HOW DOES HUMUS CONSERVE AND RESTORE FERTILITY? Answer: Humus is the life of a soil and humus always main- tained in good supply in a soil that is wisely and well tilled pre- pares the way for the development and perpetuation of a per- manent fertility—the goal for which all who till the soil should strive. Humus is organic matter decaying in the soil and is supplied to the soil by plowing down crops grown for soil im- provement, by the residues of crops and by the addition of manures. MAKING SOIL AND CROPS PAY MORE 89 Question: HOW SHOULD ORGANIC MATTER BE PLOWED INTO THE SOIL? Answer: When organic matter is added to the soil for the purpose of improving its condition, its effects will be much more marked if the material plowed into the soil is thoroughly in- corporated with it. When stubble, clover, pea-vines, sod, stable manure and other such materials are to be plowed in, the land should be thoroughly disced to a depth of not less than 4 to 6 inches before these materials are plowed down with a turning plow. This not only mixes these materials well with the surface of the soil but enables one to plow to the bottom of the furrow, thoroughly pulverizes soil mixed with organic matter, thus Discing is one of the most approved methods of plowing down organic matter which by discing is well mixed with surface of the soil. In many cases plowing will give better results if preceded by discing. giving a distribution from surface to subsoil of the organic matter and insuring thorough pulverization of the soil throughout its area by surface treatment with disc and harrow after the organic material and pulverized surface has been plowed down. This is a very important consideration when the materials mentioned above are added to the soil, and will often more than double the good effect that should be expected of them. Should this ma- 90 MAKING SOIL AND CROPS PAY MORE terial be plowed down in mass and the plow slice inverted there would be a strata of plant residue between the soil and subsoil. This would very seriously intercept the rise of moisture from below, and often in practise will cause the dying of the crop should dry weather prevail. Question: WHEN AND HOW SHOULD LAND BE SUBSOILED? Answer: The fall of the year is considered the most ideal time for subsoiling, though farther South there is more oppor- tunity for midwinter plowing, and very often the work of the farm is better adjusted to subsoiling in late November, Decem- ber and January than in the fall. Subsoiling should be done early enough, however, to allow the subsoiled land to be sub- A popular type of subsoil plow. This subsoil plow follows in the furrow made by the turning plow, and reaches the soil the turning plow does not reach. New soil is thus incorporated with the old soil, giving greater soil depth. jected to several hard freezes before spring. Subsoiling does not necessarily mean that the lower strata of soil is to be brought to the surface. More properly speaking the term applies to break- ing the subsoil a few inches deeper than it is habitually broken by the use of the turning plow. The act of subsoiling is simple in performance. The subsoil plow is drawn by a team which follows in the furrow made by the turning plow. The foot of the subsoil plow penetrates and pulverizes the soil in and beneath the open furrow. It is usually considered safe, however, to bring that quantity of subsoil to the surface which is about equal to one-fourth the quantity of soil proper. The soil recently brought to the surface should be thoroughly mixed with the surface soil, both of which should be well pulverized. MAKING SOIL AND CROPS PAY MORE 91 Question: WHEN IS SUBSOILING BENEFICIAL? Answer: If the soil proper has under it a hard, close, or ten- acious subsoil the breaking of the sub strata will be of great benefit in permitting rain-water to descend and soil water to rise; in giving the roots of plants an opportunity to penetrate deep and secure their allotted supply of food and water. It will avoid extremes of temperature, extreme wet and extreme dry conditions. Question: WHEN IS SUBSOILING HARMFUL? Answer: If subsoiling is done when the ground is too wet it will cause a running together of the particles or “baking” and the locking up of plant-food. At the same time the power of the soil to hold water will be decreased. If too much of the sub- soil is brought to the surface it will so dilute the productive sur- face soil that its evil effects may be shown for a year or more. If the subsoil is already loose and pulverized, and offers no re- sistance to the descent of water or the entrance of roots, it will be a useless operation, and may to some extent be harmful to subsoil it, though such soils may to advantage be plowed deeper. Question: WHY ARE DEEP MELLOW SOILS BEST? Answer: A brief answer to this question is that there is more soil if the soil is deep, and better soil if it is mellow. Deep and mellow soils will hold more plant-food and more water. They will give opportunity for the penetration of more roots, and thus with an abundance of food and drink and great numbers of roots, the plant has ample opportunity of supplying itself with VAIS A deep mellow soil allows the roots to penetrate in every way in search of food with which to nourish the plant. If the necessary plant food elements are present the plant will be robust, healthy and strong. 92 MAKING SOIL AND CROPS PAY MORE all the nourishment necessary for the best growth and the most abundant growth. Fertilizers applied to deep and mellow soils will give from two to four times the beneficial results as would be given by the same fertilizers applied to shallow, harsh soils. Question: WHY SHOULD SOIL BE PULVERIZED? Answer: Soil should be pulverized so that the surface area of the soil may be increased, increased quantities of plant-food liberated, and the water-holding power increased. Pulverizing soil gives more soil and better soil. The importance of water in crop production is universally recognized, and a simple illus- tration will show how reducing the size of soil particles will increase the power of that soil to hold water. Remembering that the water is held in the soil by clinging to the surface of the soil particles we will find that should a cubic inch of stone be dipped in water the 6 sides of the stone when removed from the water would each hold a square inch of film water. Should this stone be cut in two 10 times in the direction of one of its dimensions, 20 more square inches of sur- face would be exposed. Should it be cut again 10 times in another of its dimensions, another 20 square inches of surface would be exposed. Should the cutting be repeated through the third dimensions, still another 20 square inches of surface would be ex- posed, giving 66 square inches of surface where there were only 6 before. In addi- tion there would be the same increase in the exposure of the stone to the various agencies which act upon it, break it up and liberate its plant-food. A pulverized soil holds more water and holds it longer, holds more plant-food and holds it longer, liberates more plant-food from the particles which compose the soil, permits roots to grow wider, deeper and in increased num- bers and gives greatly increased and more profitable returns from fertilizing mater- ials added to the soil. Amounts of water absorbed by equal quantities of course and fine soils. The smaller the soil particles the greater amount of water it will hold. MAKING SOIL AND CROPS PAY MORE 93 Question: HOW MAY SOILS BE TREATED TO TAKE UP AND HOLD MORE WATER? Answer: The amount of water available for plant growth is one of the most commonly effective factors in crop production. It naturally follows that anything we may do to the soil which will enable it to take up and hold more water will be a direct and important step towards more profitable farming. There are a number of ways in which this desirable result may be obtained. Deepening the soil, pulverizing its particles, adding organic matter and frequent stirring of the surface are simple and easy means for increasing the power of the soil to hold water. The amount of water that a soil can hold is in direct proportion to the number and size of the particles that compose the soil. Every time a particle of soil is broken in two, two new surfaces are exposed, and when a particles of the soil is broken in two twice we have twice the area of surface for holding water, since the soil holds its water on the surface of its particles. Alterna- tion in temperature and especially freezing are potent factors in crumbling the soil so that it may hold more water. The most effective treatment that soils may be given so that they may hold more water is found in pulverizing and adding organic matter. Question: HOW DOES HARROWING, DISCING, ROLLING, ETC., HELP THE LAND? Answer: Implements are devised for the express purpose of crushing, pulverizing and stirring the soil surface so as to mix well all materials which compose the soil, thus making it uni- form and homogeneous in texture. The crushing, pulverizing and stirring reduces clods, and leaves the soil in smaller particles, exposing more surface for holding of water and for the liberation of plant-food. Question: HOW DOES THE CHEMICAL COMPOSITION OF=SOLMS. AFEECT. CROP GROW LHe Answer: The materials that a soil contains are determined by chemical analysis, consequently the chemical composition of a soil is nothing more or less than the many elements and com- pounds found in a soil. It has been shown that certain elements and certain compounds are essential to crops—that crops cannot live or grow without them. If there is one essential element of plant growth wanting in a soil plants cannot grow on or in that soil. If one element is present in insufficient quantity for the full development of a plant or a crop the plant or crop may grow 94 MAKING SOIL AND CROPS PAY MORE as long as the supply lasts, but no longer, and, while growing will make but poor progress, since the supply is insufficient. The essential element that is present in the smallest quantity limits the growth of crops. Fertilizers are employed for correcting this serious defect, since fertilizers are for the purpose of supply- ing soil deficiencies. Harrowing a field for corn. Harrowing levels the surface, pulverizes the clods, covers the seeds, and aids in destroying weeds. A harrow is especially desirable where fertilizers have been applied as it mixes the soil well. Question: HOW DOES THE PHYSICAL CONDITION OF SOILS AFFECT PLANT GROWTH? Answer: Physics is the science which deals with solids, liquids and gases—their properties, their actions and their relations to each other. Since crops live in and feed upon solids, liquids and gases, the laws which govern these three forms of matter must also govern plant growth. The physical properties of soils and plants involved in the relationship between the two are: porocity, tenacity, hardness, cohesion, adhesion, capil- larity, solution, diffusion, osmose, and in an infinite number and variety of ways these physical principles make a soil a good one or a poor one for the support of plant life. If the physical prop- erties of a soil are poor, crops will not grow profitably. It is very necessary that the physics of soils be understood if the farmer expects to make his soils and crops pay. Knowledge of soil MAKING SOIL AND CROPS PAY MORE 95 physics will enable him to correct poor physical conditions and make the soil a congenial one, one that will readily supply crops with food and drink. See that your soil is in good physical condition if you want the application of fertilizers to produce the best results. Question: HOW DOES THE ORGANIC CONTENT OF SOILS PROMOTE PLANT GROWTH? Answer: One of the many beneficial effects upon the soil is the addition of organic matter. If the soil is too porous or not porous enough, if it is too tenacious or not as tenacious as it should be, if it is too hard or too soft, if it is lacking in capillarity, if it does not promote solution and diffusion, the addition of organic matter will help it to better do these things or possess these properties. Organic matter makes humus, and has the additional good effects of enabling the soil to take up and hold more water, permit easier and more extended penetration of the roots of crops, warms the soil, enables it to be more easily cul- tivated, dissolves plant-food from soil particles, increases the profit from fertilizers by preventing them from leaching away, and organic matter supplies soil conditions that enable the crops to make better use of plant-food applied to and found in the soil. Plant Food Question: WHAT DOES THE PLANT DO IF IT DOES NOT GET ENOUGH FOOD? Answer: If a pig or a steer is confined in a pen without enough food to sustain them neither will produce profitable growth. If plants do not get sufficient food their growth also will be poor and unprofitable. Feed the pig and the steer an abundance of an appropriate ration, and they will produce profitable pork or beef. Feed the plant an abundance of an appropriate ration, and a profitable crop will be harvested. Question: HOW SHALL IT BE DETERMINED WHAT PLANT-FOOD TO USE? Answer: First, by knowing in what element the soil is deficient; second, by knowing from experimental tests what each crop needs, and then correcting both defects. Commercial fertilizers are manufactured for each and every crop grown. The appro- priate fertilizer can always be secured, and when applied properly an abundant yield follows and the fertility of the soil is 96 MAKING SOIL AND CROPS PAY MORE maintained. The prudent farmer will never buy or use any- thing but fertilizers made by reliable and trustworthy manu- facturers. Buy your fertilizers as you buy your seed—nothing but the best. Question: WHAT MUST THE FARMERS DO IF THERE IS NOT ENOUGH FOOD IN THE SOIL? Answer: The quantity or amount of yield that any crop will produce on a given area of soil is controlled by the amounts of plant-foods present and available for supplying the needs of the particular crop grown. To produce 60 bushels of corn on an acre and the 5000 pounds of stalk, leaves, roots, etc., that goes with the 60 bushels of corn, requires 32 pounds of phosphoric acid, 84 pounds of nitrogen and 34 pounds of potash; to grow A combination Fertilizer Distributor and Planter. This implement marks off the next row, opens up the furrow for the Fertilizer, applies it, and covers it up. The furrow is again opened up, and the seed is planted, covered up, and finally the soil is pressed firmly around seeds by means of a roller. 1600 pounds of tobacco with its 1400 pounds of stems requires 16 pounds of phosphoric acid, 76 pounds of nitrogen and 200 pounds of potash; and to produce 30 tons of cabbage per acre requires 70 pounds of phosphoric acid, 200 pounds of nitrogen and 270 pounds of potash. If these quantities of plant-foods are not present and available these yields will not be secured. If there is not enough plant-food in the soil to produce the yields desired, the thing to do is to add the necessary plant-food. Fer- tilizers are made and sold for just this purpose, MAKING SOIL AND CROPS PAY MORE 97 Question: WHAT IS COMMERCIAL FERTILIZER? Answer: The elements that compose food products and the sources from which derived are just as well known as the multi- plication tables. There is no more doubt about one than the other. That plants must be fed is an absolute and indisputable scientific fact; the manner of their feeding is determined by the Science of Chemistry, and the amount of their feeding by the Science of Mathematics. A soil that needs nitrogen must have nitrogen; a soil that needs phosphorus and potash must have both, and if it does not get them it remains a poor soil. All plants need these elements. The principal elements of plant- foods commonly deficient in the soil and without which no plant or crop can grow are phosphoric acid, nitrogen and potash, and a high grade commercial fertilizer contains these, the principal plant-food elements. A commercial fertilizer that fits the soil and fits the crop is the best, and no other is as good. The ideal fertilizer for soil and crops is that fertilizer which contains plant- food elements in appropriate proportions for and in forms that are available to the crop grown. Hence, a commercial fertilizer is a compound of plant-foods that crops must have if they are to grow. It is a soil builder which if properly applied will not only maintain soil fertility but increase it. Besides it will give the soil the power to be fruitful and multiply crop yields and give forth in increased quantity and in improved quality of the fruits of the earth. Question: WHAT IS A “COMPLETE” FERTILIZER? Answer: Of the ten or a dozen elements necessary to plant growth, three—phosphorus, nitrogen and potash—are very often found in the soil in quantities too small to supply the needs of crops. In some soils only one, in others two, but in a large majority of soils all three of these elements are so deficient crops can not produce full yields until their deficiencies are supplied by adding to them the missing elements of plant food. To meet the requirements of this majority of soils fertilizers containing nitrogen (ammonia), phosphoric acid and potash must be added. Such a fertilizer is a complete fertilizer, since it contains all of the needed elements of plant food and, so far as supplying the plant- food requirements of soils is concerned, completely supplies these requirements Question: ARE “FILLERS” AND “CARRIERS” THE SAME? Answer: No fertilizing material is all plant-food. It is im- 98 MAKING SOIL AND CROPS PAY MORE possible for this to be since nitrogen is a gas and in its pure form is not a plant-food, while phosphorus and potassium are minerals and are not found in nature in their pure forms. Neither phosphorus nor potash are plant-foods in their pure forms but must be chemically combined with other substances before the plant can use them. Materials used for making fertilizers and containing one or more of these three plant-food elements are called carriers of phosphorus, of nitrogen or of potash, as the case may be. These carriers may contain their plant foods in low or in high percentages according to the nature and the quality of the materials, and they must be combined or mixed in quantities that will give in the mixed fertilizer the analysis desired or guaranteed. Analyses are expressed in percent, and 2000 pounds or a ton is the commercial unit. There is a common belief among many farmers that all mixed fertilizers contain a large amount of bulky material, without plant-food value, put in them to increase their weight. They believe that everything in a bag of fertilizer, besides the three actual plant-food elements, is what is commonly called ‘‘ filler,” and they believe that all of a fertilizer should be plant-food and all available. It is impossible for this to be since no fertilizing material is all plant-food. The plant-foods that fertilizers con- tain are nitrogen, phosphorus and potassium and the value of all fertilizers is based upon the amounts of these three elements the fertilizer contains in available forms. These three essential elements of plant-food cannot be used by plants in their pure forms. Pure Nitrogen is a colorless, tasteless and odorless gas and composes about three-fourths of the air we breathe. Neither animals nor plants can use it in its pure forms. Pure Phosphorus and pure Potassium are minerals and are not found in nature in their pure forms. If pure phos- phorus or pure potassium were applied to live plants they would kill the plants. These essential elements are found in nature combined with many other substances and exist in a wide range of proportions in these various combinations. This is in accordance with nature’s laws—laws ordained by the “Creator of all things visible and invisible.’”’ Nature has distributed the plant-foods throughout the world for man’s use and they are found on or in the earth and are mined, they are taken from the sea and from the air, from plants and from animals and prepared and com- bined in the cheapest and best plant-food forms. The materials with which these plant-foods are combined by MAKING SOIL AND CROPS PAY MORE 99 nature are not ‘‘fillers,”’ but “carriers” of plant-foods, and with- out these carriers there would be no fertilizers or manures that the farmer could use. If the elements of plant-foods were sep- arated from their carriers they would not then be in forms that the plant or crop could use. This is in accordance with the laws of nature. If a farmer wished to use fifteen pounds of nitrogen on a certain piece of land he could not apply it in a pure form since nitrogen is a gas. Besides there are many tons of nitrogen in the air resting over each acre of land, but it is not in a usable form. To overcome this, and to have the nitrogen in a form that will be available and suitable for plant-food, nature com- bines the nitrogen with other materials and thus gives us this valuable plant-food in a diluted and usable form, as in the case of nitrate of soda which contains 15 pounds of nitrogen in one hundred pounds of bulk—nature’s proportion or formula for nitrate of soda. Nature does not confine the application of this law to plant- foods and fertilizer materials but to human and animal foods and feeds also. Very few of the animal feeds are composed of as much as half of available food. Only a small part of many of the dishes served thrice daily on our tables is really used or even usable as human food, yet we must use the whole bulk to get the nutriment in it. The greater part of our foods are wnavail- able and are conveyed by ‘‘carriers,” as the plant-foods in fer- tilizers. Fruits, potatoes, cabbage, beets, etc., are composed of more water than any other one substance. We do not complain of the “carrier”? materials in our stable and barn-lot manures, yet the average ton of such manures contain rarely more than 30 pounds of plant-food, the remainder, 1970 pounds being “carrier”? or accompanying bulk put there by nature. Question: DO HIGH GRADE FERTILIZERS CONTAIN FILLER? Answer: No. Filler increases the bulk of a fertilizer and is added for the purpose of balancing the analysis, insuring the fulfillment of the guarantee and conforming to the fertilizer inspection laws of the various states. The purchaser of a fer- tilizer should remember that he is paying for the pounds of plant-food the fertilizers contain. Some one has said and ap- propriately that filler in a fertilizer is ballast. Hence, it will be seen that low-grade fertilizers are, as a rule, more expen- sive than high grade fertilizers, since a pound of plant-food 100 MAKING SOIL AND CROPS PAY MORE in the latter costs less than a pound of plant-food in the former. Three tons of 8-2-2 fertilizer contains 720 pounds of plant-food and two tons of 12-3-3 fertilizer contain exactly the same num- ber of pounds of plant-food. If the 8-2-2 goods retails at $24.00 per ton, three tons will cost $72.00. If the 12-3-3 goods retails at $32.00 per ton the two tons will cost $64.00, or $8.00 less than the same amount of plant-food in the 8-2-2 goods. Thus he who purchases 720 pounds of plant-food in three tons of 8-2-2 fertilizer has an extra ton to pay freight on, to haul, to apply to the soil, and must pay $8.00 more than he who purchases two tons of 12-3-3 fertilizer, yet each purchaser gets exactly the same amount of plant-food or 720 pounds. High grade fertilizer is cheaper and better. Should the V-C Company add filler to its fertilizers what wouldit gain? The price of a fertilizer is determined by the num- ber of units of plant-food it contains. However, worthless as filler might be as a plant-food it would cost a small fortune to purchase, ship, dry, grind, screen and mix thousands of tons of such materials annually. All of this would be an absolute loss to the company since its fertilizers are valued only for its plant food units, or the pounds of plant-food in a ton of fertilizer. In a high grade fertilizer there is no room for a filler. Question: WHAT IS ROCK PHOSPHATE? Answer: Many thousands of years ago enormous quantities of bones of animals became fossilized—turned to stone—and are now found in great deposits in South Carolina, Florida, Ten- nessee and other places. These rocks are mined and ground to a fine powder called ‘‘floats’? or ground phosphate rock. This rock contains the equivalent of from 26 to 32 percent of phos- phorie acid which in this form is but slightly soluble in water and consequently but little of it is available for the use of crops as plant-food. Question: WHAT IS ACID PHOSPHATE? Answer: Acid phosphate is the standard carrier of phosphoric acid and is made by treating ground phosphate rock with about an equal weight of sulphuric acid. The sulphuric acid changes the phosphorus in the rock phosphate to a soluble form. Thus 100 pounds of phosphate rock analyzing 32 percent of znsoluble phosphoric acid becomes 200 pounds of acid phosphate analyzing 16 percent of soluble phosphoric acid. The phosphate rock after being treated with sulphuric acid becomes acid phosphate and the phosphorus it contains becomes phosphoric acid. Acid phos- MAKING SOIL AND CROPS PAY MORE 101 phate and phosphoric acid must not be confused—ac?zd phos- phate is the whole material while the phosphoric acid is the 16 percent and is actual plant-food. Thus a 200 pound sack of acid phosphate contains 32 pounds of phosphoric acid, or 16 percent. Question: HOW DOES PHOSPHORIC ACID HELP THE PLANT? Answer: If plants cannot get phosphoric acid they will die be- fore reaching maturity. It is highly necessary to the develop- ment and maturity of the seeds of all plants, and increases their fruitfulness. Phosphoric acid also aids in making soluble and transferring to the seeds the nitrogen compounds so essential to the full development of the seeds. Question: HOW DOES NITROGEN OR AMMONIA HELP THE PLANT? Answer: Nitrogen or ammonia exercises a great influence in the development of the vegetative functions of plants. An excess of nitrogen retards fruitfulness, but with an abundance of phosphoric acid and potash present aids in producing a heavy yield of well balanced composition. Seeds and leaves are rich in nitrogen, consequently full seed and leaf development re- quires a full supply of nitrogen. Question: HOW DOES POTASH HELP THE PLANT? Answer: Potash helps to make the stalks, stems, branches and leaf-stems of plants. It is essential to the formation and trans- ference of starch; it aids in the manufacture of starch in the ieaves and in its transference to the fruits. Potash is essential to the growth and maturity of the stems or woody parts of plants and the fleshy parts of vegetables, grains and fruits. Feeding Crops Question: WHEN SHOULD FERTILIZER BE ADDED TO THE SOIL? Answer: Fertilizers should be applied when the crop is not developing and producing as it should, when heavier yields of better quality and when greater profits are desired. There is a deficiency in the soil if crops do not grow well and fertilizers are made for the purpose of supplying deficient food materials for the use of the plant. The time to apply fertilizers is when the land is being prepared for the crop, while the crop is growing and whenever it needs to be fed so that it may do the duty expected of it. 102 MAKING SOIL AND CROPS PAY MORE Question: HOW SHOULD FERTILIZERS BE APPLIED TO THE SOIL? Answer: Fertilizers are added or applied to the soil to make it richer. The richest soils have the plant-food elements which they contain evenly distributed through them. The best results come from fertilizers when they are well mixed with the soil. The soil receives the best benefits when fertilizers are applied broadcast, spread evenly and well mixed into the soil. Crops grown in rows more than two feet apart are fertilized in the This is a type of Fertilizer Distributor commonly used for cotton, corn, and other crops cultivated in the row. The row is marked, opened and the Fertilizer put down, and then mixed with the soil by the solid wooden wheel which follows in the furrow. drill, and later additional applications are made between the rows. In some cases only one application need be made, in others two applications, and others three applications. Implements are in common use for putting the fertilizer on or into the soil. Question: IS THE MANNER OF APPLYING FERTIL- IZERS IMPORTANT? Answer: How to apply fertilizers to growing crops is a matter of more consequence than might appear at first glance. In the first place the applied materials should be finely pulverized since lumps or clods are far more objectionable in fertilizers than lumps and clods in a field. This is particularly true regarding late applications of fertilizer. They should be well pulverized MAKING SOIL AND CROPS PAY MORE 103 and evenly distributed. The fertilizer may be distributed be- tween the rows of growing crops more cheaply by the use of that valuable implement known as a combination cultivator and fertilizer distributor. When second or late applications are made to growing crops the roots of the crops have almost always spread far into the “middles” or the spaces between the rows. This wide spreading of the root system must be taken into con- sideration both as regards the depth of cultivation given the crop and as regards the place the fertilizer is put down. It is not at all necessary that it be near the point where the plant comes out of the ground. As a matter of fact, it is better that it be away from rather than near the base of the plant. When a crop has reached that stage of its development that calls for intercul- tural applications of fertilizer the feeding parts of its roots are not near the main stem of the plant, but spread far out in all directions. It is the tips of the roots and rootlets that take up the plant-food while those parts of the root system connecting the root tips with the plant are merely conveyors of plant-food —the pipe line system, so to speak—and do not take plant-food from the soil. The root tips with their root hairs alone perform the function of absorbing food from the earth. Consequently an even distribution of late applications of fertilizer over all the soil in which the roots are operating is necessary for the best use of the fertilizer applied by the crop. Not only the distribution, but also the incorporation of the fertilizer with the soil is necessary. This incorporation or mixing of the fertilizer with the soil is often a very necessary act. When the combination fertilizer distributor is used in making the application it is of course mixed with the soil and for this reason the use of such an implement is urged. On the other hand, if the fertilizer is left on the surface of the soil it may remain there until rain falls and in the meantime be of no benefit to the crop. If rain does not fall for a week or two and no cultivation is given the crop its development may have passed that stage at which a late application would have been of benefit and the office of the fertilizer and increased yields it should have induced are lost. The farmers who have become prejudiced against late applications of fertilizer have developed their error in the When and the How of making the application. He who puts down his late applications of fertilizers at the right time in the right manner and uses the right fertilizer in the right condition for a crop in need of late fertilization will have his wisdom and in- dustry rewarded by bountiful yields of high quality. 104 MAKING SOIL AND CROPS PAY MORE Question: MAY FERTILIZERS BE APPLIED PROFIT- ABLY TO GROWING CROPS? Answer: Second or intercultural applications of fertilizer are each year more commonly practiced and many of the best farmers are now making a third application. For cotton, to- bacco, corn and many truck and other crops planted in rows the later application of fertilizer is an established practice and a profitable one. Many farmers apply half of the quantity decided upon for a crop before or at the time of planting and A Fertilizer Distributor and Planter. The fertilizer is applied first and then the planter puts down the seed. Good seed and fertilizer will increase your yields per acre. the remainder at some period of growth when experience teaches it is most beneficial. This will vary of course with different crops and on different soils. It may be assumed that the origi- nal or first application is for the purpose of developing the plant and the second (and third, if three applications are made) to develop the fruit, seed or the part of the plant to be used. The fruit of some crops, like wheat or corn all ripens practically at one time (if the strain of seed is a well bred one), while crops like cotton or tomatoes develop and ripen their fruits through sixty or more days. It naturally follows that the right time for mak- ing a late application of fertilizer for crops like wheat and corn is of brief duration while with crops like cotton and tomatoes the right time may be extended over a number of days or weeks. MAKING SOIL AND CROPS PAY MORE 105 The safest rule to follow in deciding when to make the second application is to apply just before or at the time the crop is beginning to fruit or when the crop demands the largest amount of available plant-food for its best development. With corn and wheat and other crops which ripen all their seed about the same time, the second application should be made when the plants show their first signs of tasseling or heading, or just before. With crops like cotton, tomatoes, etc., which continue to blos- som and make fruit through many days the late application may be given when the first blossoms open or a little before. With this class of plants a third application may profitably be made between fifteen and thirty days after the second. Intercultural applications of fertilizers are very profitably applied to crops grown for their leaves, such as tobacco, cab- bage, lettuce and many others. Applications to be of greatest benefit to these ercps must be made long before the blossoms begin to appear so that the fertilizer may supply the crop with plant food while the crop is beginning to make the final growth expected of it. A short time before a crop begins its heaviest growth—when it has the greatest demand for plant food—is the proper time for late applications of fertilizers. If the crop will for some time continue to make a heavy growth or through many days develop fruit a third application should be made, since the object of late or intercultural applications of fertilizer is to supply the demands of the crop and enable it to do its duty. The more appropriately this demand is met in time of appli- cation, character, quality, composition and quantity of plant- foods carried by the fertilizer the better will be the character, quality, composition and quantity of crop produced. Question: IS THERE MORE THAN ONE WAY TO APPLY FERTILIZERS? Answer: Fertilizers may be applied in five general ways: (1) Broadeast; (2) in the drill; (3) in hills; (4) interculturally (side applications); and (5) as top-dressing. Question: HOW IS FERTILIZER APPLIED BROADCAST? Answer: Broadcast application of fertilizer is obviously ap- vropriate for crops that are seeded broadcast, like the small grains, grasses, clovers, etc. Broadcast applications are made with drills, planters, seeders, etc., that have attachments for distributing fertilizers, or with implements especially con- structed for the purpose. Broadcasting of fertilizers under the above conditions is more effective when the distribution is uni- 106 MAKING SOIL AND CROPS PAY MORE form over all the surface of the land and when the fertilizer is thoroughly incorporated with the upper stratum of the soil from one to four inches deep. Fertilizers should be used not only for supplying plant-food The above view shows a method of Broadcasting Fertilizer which has met with the general approval of the farmers who are Making Their Soil and Crops Pay More. to the current crop but also for the permanent enrichment of the soil. When they are applied with these two objects in view, broadcasting is more effective than any other mode of applica- tion and not only so for broadcast crops but for crops grown in rows also. Fertilizers should be of benefit not only to the crop for which they are directly applied, but also for future crops. The best farmers and truckers apply more fertilizer than the one crop needs, so that the surplus may act as a permanent enricher of the soil and the second crop be benefited by the residual effects of preceding applications. The cumulative effects of heavy broadcast applications are among the best means for preventing soils from losing their fertility and a sure means by which soils will become richer and richer each year. Question: HOW IS FERTILIZER APPLIED IN THE DRILL? Answer: Fertilizers are applied in the drill or row by the use of fertilizer distributors designed for this purpose. There is a MAKING SOIL AND CROPS PAY MORE 107 large variety of these distributors in use and they vary widely in merit and adaptation to different crops and different methods of culture. These distributors may be adjusted so as to regulate between their maximum and minimum capacities, the quantity of fertilizer put down per acre. While gauges or indices point to the quantity per acre with the distributor definitely adjusted, care must be taken to insure the application desired when the distance between rows varies. If the distributor is geared to apply 300 pounds per acre with rows three feet apart, more than 300 pounds will be applied if the rows are 21% feet wide, and less A closer view from the rear of the combination Fertilizer Distributor and Planter as shown on page 96. _Here is easily seen the roller which packs the soil over the seed, and the appliance which indicates the next row, and the fertilizer and seed containers. if the rows are 4 feet wide. The reason for this is obvious. Assuming that an acre is 70 yards square there would be 3640 feet of rows to the acre if the rows were 4 feet apart, and 4900 feet of rows to the acre if the rows were 3 feet apart, and 5880 feet of rows if the rows were 2% feet apart. If the distributor’s feed is not adjusted to the number of feet of rows in an acre there is no certainty that the desired quantity per acre is being applied. Fertilizers applied in the row should not be placed too deep nor too near the surface of the soil; they should be uniformly distributed so that every foot of row will receive as near as 108 MAKING SOIL AND CROPS PAY MORE possible the same amount of fertilizer given every other foot; the fertilizer should be well mixed with the soil; and, no con- siderable quantity of fertilizer should be allowed to come in direct contact with the seed. Question: HOW IS FERTILIZER APPLIED IN THE HILL? Answer: Applications of fertilizers to crops grown in hills like melons, squash, cucumbers, etc., is more commonly made in the individual hills and this often is advisable, if it is properly done. In applying fertilizers in hills it is a mistaken idea that the fer- tilizer should be placed in a mass directly in or under the hill. It should be applied zn and around the hill and well mixed with the soil over a space at least two feet square—the center of the square being the center of the hill. The various kinds of fruit trees and vines especially when young may more economically and appropriately be fertilized individually rather than by the row or broadcast. This need not apply, however, when crops are grown in the young orchard or vineyard and these crops are well fertilized. In such cases the crops may be fertilized by broadcasting the whole area and thus feed both the orchard or vineyard and the crop at one application. Question: WHEN SHOULD FERTILIZER BE APPLIED IN THE DRILL OR ROW? Answer: This method of fertilizer application is practiced gen- erally with such crops as are commonly grown in drills or rows, like corn, cotton, tobacco, potatoes, many truck crops, etc.; and, the time of application should be a comparatively short while before the seed are sown or at the time of sowing. The latter should be preferred since it is more economical, inasmuch as one implement may be used for both putting down the fertilizer and sowing the seed and both be done at one time. If, however, heavy applications are made in the drill they may sometimes be put down five or ten days before the seed are sown. ‘The fer- tilizer should be well mixed with the soil so that no considerable quantity of it will be in contact with the seed. Question: WHEN SHOULD FERTILIZER BE APPLIED BROADCAST? Answer: Broadcast applications of fertilizer may be made (1) when the soil is being fitted for the seed, (2) when the seed are sown, (3) or after the seed are sown. (1) Applications made after the land has been broken and MAKING SOIL AND CROPS PAY MORE 109 then worked well into the soil with disk and harrow will give a most ideal distribution of the fertilizer throughout the soil pre- pared and aid materially in developing a seed bed most congenial to the crop. (2) If the application is made when the seed are sown and a combination fertilizer and seed drill is employed much time and labor is saved. This is the most common method employed for broadcast distribution of fertilizers and is the most economical for small or medium heavy applications. If heavy applications are made all, or a part at least, should be put down a few days before the seed are sown. (3) Applications made after the seed are sown should be made with a broadcast distributor (or by hand) before the seed germinate and the land lightly harrowed or rolled. If rolled the harrow or weeder should at once follow the roller. Such appli- cations are recommended only in cases of emergency and for small seeds that are covered very lightly. Question: HOW IS FERTILIZER APPLIED INTERCUL- TURALLY? Answer: Intercultural and side applications of fertilizers usually refer to the fertilization of crops cultivated in rows and the fertilizer applied after the crop has begun growth. Such applications may be made with the distributors used for fer- tilizing rowed crops before planting, but are best made with an implement known as a combination cultivator and fertilizer dis- tributor. As the name implies, such an implement puts down the fertilizer for the growing crop while the crop is being cul- tivated and works it into the soil. It really does two very important and profitable things at one and the same time and may operate only on one side of a row at a time, on both sides; or, it may cultivate the crop and apply the fertilizer to two rows at a time—depending upon the construction of this valuable implement. Intercultural or side applications of fertilizer has become an established custom very widely adopted in comparatively recent years, and on account of its profitableness is practiced more and more each year for increasing yields of practically all field, truck and orchard crops and for adding to their quality. While the application of the fertilizer may be and often is made by hand this method is slow and expensive and every farmer is urged to possess one or more of the implements made especially for this 110 MAKING SOIL AND CROPS PAY MORE purpose that he may not only make the application more econ- omically but much better and reap through the efforts of one operation the benefits of needed plant-food (applied when the crop demands it) and needed cultivation. A modern two row fertilizer distributor and cultivator. — This method of cultivating destroys weeds, applies fertilizer and also keeps the soil in a good physical condition. Question: HOW IS FERTILIZER APPLIED AS A TOP DRESSING? Answer: Top dressing has the same object as intercultural or side applications of fertilizers and differs from it in no ma- terial way except in manner of application, and, that top dress- ings are most commonly made to broadcast -grown crops However, some interpret ‘‘top dressing” to mean the application of fertilizers to growing crops and construe it to mean “side application,’ “late application,” and ‘intercultural applica- tion.” This interpretation is immaterial since the principle underlying all is the same and the only difference is the manner of application. Top dressing is the “‘finishing off” process in the production of good crops. It is the application of plant-food at the “pyschological moment’’—when fertilization gives best re- sults. When ‘all the fertilizer intended for a crop is applied before the seed are sown there is a constantly decreasing quantity of plant-food in the soil and constantly increasing size or volume MAKING SOIL AND CROPS PAY MORE 111 of crop to be supported. When the crop begins to develop its fruit or seeds a top dressing of appropriate composition is of greatest benefit and increases the yield and quality of the crop often to a remarkable extent. Applications of top dresser to broadcast-grown crops may be made by hand or by broadcast fertilizer distributors to the crop while it is growing. If the condition of the soil and the habit of the crop will permit the application should be followed by a harrow, weeder, or some surface stirring implement. This will incorporate the fertilizer with the soil and it will become available to the crop as soon as the soil moisture dissolves it. If the soil surface is dry when the top dresser is applied it can not be dissolved or reach the roots of the crop before rain falls unless it is worked in with a harrow, weeder, or some similar implement and thus come in contact with moist soil. Question: WHAT ADVANTAGE HAS TOP DRESSING TO CROPS? Answer: A comparatively new practice in the use of fertilizers and one which is bringing heavier yields and greater profits is top dressing with commercial fertilizers. This practice embraces both conservation and preparedness since an application made just when the growing crop needs increased quantities of food, the food is taken up then and it is not washed or leached away as may be the case if all the fertilizer was applied at one time and before the crop even begins to grow. Top dressers applied, two, three or four times as cotton, corn, tobacco, truck crops, ete., are being cultivated and worked into the ground (or, sown broadcast, for broadcasted crops like small grain, meadows, etc.), is a practice by which needed plant-food is applied when most needed. A top dresser of composition appropriate to the crop to which it is applied and supplying the soil’s deficiency in plant-food is a most logical practice since it is a means to an end and the end is attained. Question: DO FERTILIZERS MAKE THE SOIL RICH? Answer: A poor soil is one which does not contain enough plant-food to supply the needs of a big crop. Fertilizers are plant-food. If the right kind of high grade fertilizers and enough of them are applied, the soil is made rich. If it is to remain rich and fertile the food supply must be maintained. 112 MAKING SOIL AND CROPS PAY MORE Part of a 475 acre field of cotton on land which has been in cultivation for over 100 years, on plantation of Mr. F. W. Taylor, near Greenwood, La. Mr. Taylor is an enthusiastic user of V-C Fertilizers. Question: DO FERTILIZERS SAVE LABOR? Answer: The heaviest item of expense in growing crops is labor. With many crops the cost of labor for producing a low yield is almost as great as the cost of labor for producing a high yield. The labor cost of preparing the land, planting and cul- tivating an acre that produces 25 bushels of corn is practically the same as that required to produce 50 or even 100 bushels per acre. It costs practically the same (and often more) to cultivate a poor or infertile acre of land as it costs to cultivate a rich or fertile acre. Poor or infertile land is poor because it contains an inadequate supply of plant-food and the judicious use of com- mercial fertilizer is the chief means by which it may be made rich and yield, without additional labor, heavier crops of better quality and at a lower cost of production. When labor is diffi- cult to get and when it is high in price crop production may not only be maintained but increased by the use of increased quan- tities of fertilizer. This is strongly illustrated in a bulletin written by Dr. B. W. Kilgore, Director of the North Carolina Experiment Station. Dr. Kilgore’s report is based on a number of experiments the object of which was to ascertain the profits accruing from the use of varying amounts of fertilizer applied to cotton. The tabulated results given below are based upon the normal cost of both labor and fertilizers. MAKING SOIL AND CROPS PAY MORE 113 Fertilizers Save Labor Lbs. of Jost of Fer- Cost of Value of Lint] N’t Pr’fit p int ilizer Use abor Total Cost | per cre at |Acre No el Acre Bee ee ‘per Acre. oe hoe os se 2be ee Saari wateae ee 1 105 | “ver"tsea | $35.00 | $35.00 | $ 21.00 | -$14.00 2 PANS $ 3.00 35.00 | 38.00 43.00 | + 5.00 3 430 7.00 30.00: | 42.00 86.00 | +44.00 4 500 10.00 35.00 | 45.00 100.00 | +55.00 The value of the lint from Acre No. 1 on which no fertilizer was used was $14.00 less than the cost of production. Three dollars invested in fertilizer for Acre No. 2 resulted in a profit of $5.00, a narrow margin of profit. On the other hand, when $7.00 and $10.00 worth of fertilizer, respectively, were used on plots Nos. 3 and 4 the profit above the cost of labor was $44.00 and $55.00. It would have required eleven acres receiving only $3.00 worth of fertilizer to have made the profit one acre made when $10.00 worth of fertilizer was used and eleven times the labor would have had to be employed. While this may be an exceptionally wide margin it has been duplicated and exceeded thousands of times with high priced crops such as tobacco, cot- ton, truck crops, etc. It is a striking example of how farmers may serve their country and themselves in trying times and when an abundance of cheaply produced crops becomes an economic and patriotic duty. Question: DO FERTILIZERS IMPROVE THE QUALITY AND INCREASE THE MARKET VALUE OF CROPS? Answer: In addition to the profits reaped from increased pro- duction and reduced cost of production which comes from the judicious and liberal use of fertilizer there are other important and often overlooked benefits derived from fertilizers. Since fertilizers are scientific and practical plant foods it is to be ex- pected that crops which are liberally fed the foods they are in need of will develop higher qualities as well as produce higher yields. This is universally proven in practice and, in recognition of the better qualities, the market will and does pay a higher price for well fed, well developed, healthy and wholesome prod- ucts. No one expects a half starved cow to give good milk, or a half fed hog to make rapid gains of high price pork, or a half fed horse to do a full day’s work. Food produces quantity and quality of milk, pork and work in these three kinds of animals and food—plant-food—does the same thing for plants. It makes 114 MAKING SOIL AND CROPS PAY MORE more plants, better plants and plants worth more since there are more products to use or to sell and the products are more val- uable and sell at a higher price. High qualities are always sought and always command a higher price. One cannot make a “silk purse out of a sow’s ear” nor can one make higher priced truck, orchard and farm products from underfed plants and crops. Soil Conditions Question: WHAT SOIL CONDITIONS MUST BE PRESENT IF FERTILIZERS ARE TO BE EFFECTIVE? Answer: That a crop may be able to make the best use of the plant-food already in the soil and the plant-food in fertilizers Thorough cultivation is essential to good plant growth after the soil has been well supplied with Plant Food. applied to the soil, the soil itself must be in such condition as will supply all the demands of the crop. The soil must be deep and fine. Depth of soil is obtained by deep plowing and sub- soiling, and a fine soil is secured from thoroughly plowing, followed by the best use of such implements as the disc, smooth- ing harrow and other harrows, and a roller if clods make the use of a roller necessary. Clods allowed to remain in or on a soil are not entered by the roots of crops. Clods seriously check the growth of plants by withdrawing plant-food from their reach. and reducing the water-holding power of the soil. The soil must be well drained to a depth not less than three feet if the full benefit is to come from fertilizers and from the plant-food found in the soil. Humus enables the soil to hold more water and hold it longer, and loosens the soil by preventing it from baking or MAKING SOIL AND CROPS PAY MORE 115 running together into clods. Lime aids in pulverizing the soil and, if acid, makes it sweet. Deep, pulverized, well drained soils with a good supply of humus, if not acid, are congenial to crops, supplying their physical needs and enabling them to enjoy good health and make good and profitable use of fer- tilizers. Good soil conditions make healthy crops. Sick animals and sick plants cannot make good use of foods. Question: HOW SHALL ACID SOILS BE CORRECTED? Answer: Lime is a “digestor”’ of plant-food. It corrects acid soils, making them sweet and habitable to plants. It aids in making potash a better food and enters into the structure of all plants. Lime is especially beneficial to legumes, such as clover, cowpeas, alfalfa, beans, peanuts, ete. oe Ree wi ee Method now extensively used in the application of lime. Question: DOES THE COLOR OF SOIL AFFECT CROP GROWTH? Answer: Soils may be brown, red, yellow, gray and black. While the kind and color of rocks from which soils are disinte- grated partly control their color, it is controlled more by the amount of organic matter and by the form of the iron in the soil. The more organic matter a soil contains the blacker and more fertile it is. Red and yellow soils become brown and darker if organic matter is added. Black or dark soils absorb the sun’s heat more than lighter soils, and if well drained will produce better crops earlier. Radiation of heat from the soil is also affected by color. Dark soils may be worked earlier in the spring and later in the fall, and on account of their higher tempera- 116 MAKING SOIL AND CROPS PAY MORE tures more plant-food becomes available, and the length of time plants may continue in best growth is extended. However, any soil may wear out, no matter what its color may be. Even a very black soil may be an infertile one, such as shale soils which are at times actually barren. Question: WHAT EFFECTS HAVE MANURES ON CROPS? Answer: A ton of manure contains about five pounds of phos- phoric acid, seven pounds of nitrogen and eight or nine pounds of potash, which is not so much plant-food as is contained in a 200-lb. sack of complete commercial fertilizer. It is evident that manures can only in a limited way compensate for the absence of commercial fertilizers. On the other hand, a liberal application of manures enables the farmer to get better and more profitable returns from commercial fertilizers, since manures in several ways act beneficially upon the soil, especially so in improving their physical condition and water holding power. Manures also increase the bacterial population of the soil, for beneficial bacteria are great promoters of fertility and plant growth. Manures affect beneficially the color of soils, aid in making unavailable plant-food available, make the soil warmer, looser, more easily worked, and check leaching and soil wash. Fertilizers may nearly always be more profitable applied to soils filled with humus than to soils deficient in humus. The greatest benefit to soils from manures comes from the increased quantities of humus that result from applications of manures. Care should always be exercised in the use of stable manure since it is liable to cause the spread of insects, fungus and bac- terial diseases, and the introduction of weed seeds. Question: IS IT IMPORTANT TO HAVE A GOOD SEED- BED? Answer: A good beginning is very helpful to a good ending, and good preparation for many crops is more necessary than any other one thing the farmer can do. A good seed-bed is secured by thorough breaking to a depth appropriate for the particular soil under treatment and for the crop to be grown, a thorough pulverization of the soil, especially for small seeds, and a com- pacting of the soil to at least a moderate degree so that the seeds may come into intimate contact with the soil particles and promptly absorb moisture for quick and uniform germination. A well prepared seed-bed better controls the soil water, presents MAKING SOIL AND CROPS PAY MORE 117 conditions for the ready delivery of plant-food to the plant roots, and enables the young roots to spread and to penetrate further as they seek water and food. The seed-bed is the home of the young plant in which it not only lives but from which it gets its food and water, and the more nearly its home is a congenial one the more sturdy and rapid will be germination and growth of Preparation of seed bed. The caterpillar tractor is here shown using the three types of harrows,—the disc, cutaway dise and spike tooth harrow. the plants, and the more profitable will the crop be. Good seeds and good seed-beds mean a good stand. Good Seeds Question: ARE GOOD SEEDS NECESSARY TO PRODUCE GOOD CROPS? Answer: A farmer may have the best soil, the best climate, and the best fertilizers, yet without good seeds he cannot pro- duce the best crops. The seed makes the plant and plants make the crop. Good seeds are true to name, sound, strong in vi- tality and free from weed seeds, adulterants and mixtures. Without good seed the farmer is not assured of a good stand, or a crop of good yield and high quality. Like begets like. If the 118 MAKING SOIL AND CROPS PAY MORE stand of corn on an acre is ten percent less than a perfect one there will be a loss of ten percent in the failure to utilize all the land, ten percent of the cultivation and of the fertilizers will be lost, and the yield will be ten percent short. Good seeds will often yield twice as much as poor seeds. By purchasing inferior, Making a germination test of corn seeds. The seed samples that do not produce strong vigorous shoots should be noted, and the ears from which they were taken should be disearded. cheap seeds the farmer is often subjected not only to the above losses but introduces many weeds that for years to come may annually increase his labors and reduce his crop yields. Question: IS IT IMPORTANT TO PLANT ONLY GOOD VARIETIES? Answer: The selection of good varieties is equally as important as the planting of good seeds. Varieties of a crop like different crops vary widely in their adaption to soil, climate and uses. A poor variety of apples may have no sale value, yet the trees occupy the same area that the trees of a good variety occupy. A poor variety of cotton may yield only a fourth of a bale of lint to the acre, while a good variety would yield a bale on the same land, though both be given the same care, treatment and fertilization. Certain varieties of the various crops are well adapted to some localities, and certain varieties poorly adapted, and large profits will come to the farmer who seeks, finds and grows the best variety for his farm. Likewise great loss will MAKING SOIL AND CROPS PAY MORE 119 result if a poor or even an average variety is grown in the place of one of the best. Each farmer should choose only the best varieties, improving these by careful selection from each kind every time the new crop is harvested. Rack used for the storing of seed corn. Question: HOW MAY CROPS BE IMPROVED BY SEED SELECTION? Answer: Within recent years science has thrown a strong light upon the laws of heredity, and applied to seed selection in crops these laws have been the means of developing the art of selection so that the average farmer may practice it with great profit. Very profitable increases in yield, quality and other properties of plants may easily be secured by any one who will go to the trouble of becoming familiar with the simple practice of the art. Plants vary widely within families and varieties, and the selection from those which transmit the tendencies to vary in desirable directions will establish a strain of superior ability to give heavy yield, large size, better color, or superior quality of any kind. The same principle of selection has long been 120 MAKING SOIL AND CROPS PAY MORE practiced with domestic animals by many breeders. In any collection of plants will be found some that are poor, some that are very superior, and many that are between the two extremes. The selection of only the best for seed, and always the best each year, and those that came from the best the year before will soon develop a strain superior in yield and quality. Question: DO FERTILIZERS IMPROVE THE QUALITY, VITALEVY. AND” HIGH REPRODUCTIVE POWER OF SEEDS? Answer: Every one knows and appreciates the value of good seeds and every one should know that no matter how carefully seeds may be grown, selected and kept they will not and cannot reproduce high qualities and abundant yields unless they are sown in well prepared, enriched soils and otherwise given that treatment necessary for their best development. A healthy, strong and fully developed plant will produce the best seeds and if not well fed it cannot do this. Like produces like in successive generations of plants when each generation is given full oppor- tunity for the best development. Plant-food when utilized by the growing crop makes the crop through the transformation of the air and earth food materials into plant tissue. If the plant or crop is not adequately supplied with the food materials nec- essary for it to most perfectly perform its divine mission—the reproduction of its kind—it cannot do this. An undeveloped plant or one weakened and dwarfed by being underfed cannot fully perform its “divine mission,” nor reward the husbandman by bringing forth the “best of its kind.” The best seeds are produced by the best plants and the best plants are those which are fed best. Question: HOW DO CROPS CROSS AND BECOME MIXED? Answer: A very large proportion of our important crops are propagated from seeds, and seeds are produced from pollen, the male organ of plants, and the pistil, the female organ. The pollen which is found in the anther, which is the top of the fila- ment, is carried by the wind, insects, etc., and coming in con- tact with the stigma, the enlarged top of the pistil, extends downward through the style and fertilizes the ovules, and these develop into the seed. Without pollen and pistils’ plants cannot form seeds. The pollen from closely allied plants have the power of fertilizing or pollinating each other, and it is by this MAKING SOIL AND CROPS PAY MORE 121 cross-fertilization that hybrids or crosses are developed. If one kind of corn or one kind of cotton develops seeds from the pollen of other kinds of corn or of cotton the seeds that result will be crossed, and may partake of the character of either parent, or both, or may develop new characters, which may be or may not Male and female flower of the Watermelon plant. The female or pistillate flower is to the right, and the staminate or male to the left. be desirable. Some plants cross very readily, like corn, and some cross but slightly like wheat. Plants that produce seed are of three classes, their classi- fication being controlled by the relative positions of their male and female parts. Some plants have both male and female parts in one blossom, like tobacco, legumes, cotton, wheat, peaches, etc. Some have two kinds of flowers, one male and one female, like melons, corn, oaks, pines, etc., and some have all their female parts on one plant and all their male parts on another, like persimmon and juniper. The ease with which pollen may be blown by the wind and carried by bees and other insects is responsible for the crossing of many crops. Indis- criminate crossing is largely responsible for the “running out” or deterioration of some crops, and it is often necessary to plant only one variety of a crop in a field if the seed are to be kept pure. The precautions that must be taken in order to keep seed 122 MAKING SOIL AND CROPS PAY MORE pure and make them better vary with different crops, and the farmer should become familiar with the practices necessary for keeping his seed pure, and should know how to grow good seed and make them better by selecting the best from each crop; or better still, grow a seed patch and have it separated from other crops that would cause crossing. Some crops produce better from seeds fertilized with pollen from the same plant that pro- duce the seeds, like tobacco and cotton, while corn should be fertilized with pollen from other plants than those from which the seed are saved, but the pollen should come from plants of the same variety of corn. Planting and Cultivating Question: WHAT DISTANCES SHOULD CROPS BE GIVEN IN THE ROW? Answer: If crops habitually grown in rows are given too much distance between the rows and between the plants in the row the yield will be reduced, and the same undesirable result will follow if the rows or the plants in the rows are too close. The habit of growth and the manner of fruiting, the preparation of the soil, its natural fertility and the quantity of fertilizers applied and the season, all these affect the distance or the “stand” that crops should have. Only good judgment and experience are safe guides. Examples of wide variation in the numbers of plants that will give the best re- turns on a given area are found in a compari- son of the best dis- tances to plant cotton and corn. Corn should be planted thickly on rich land, and further apart on poor land; cotton should be grown thinner on rich land so that each stalk may spread and produce more bolls, and thicker on poor land so that space will not be lost between the plants. A cultivator in common use on shallow cultivated crops such as corn. MAKING SOIL AND CROPS PAY MORE 123 Question: DOES GOOD SOIL PREPARATION MAKE CULTIVATION MORE EFFECTIVE? Answer: If the soil is not well prepared before the seeds are planted or the plants set out, as the case may be, the lack of preparation will not only affect the germination of the seed and the growing off of the crop by having an uncongenial home for the plants, but the subsequent cultivation of the crop cannot be as effective nor can it take the place of good preparation. A poorly prepared field like this one will not grow good crops. Moisture cannot circulate well in the soil and the large number of clods prevents a goodly portion of the best of the soil from being used by the crop. Had these clods been crushed and the field then harrowed a good seed-bed would have been prepared and a good crop would result. Good preparation pulverizes surface and undersurface soil, enables the soil to take up more water on account of its greater fineness and increased porosity. Preparation starts the soil off in a good condition. Poor preparation leaves the soil cloddy, harsh and often there is too much thrashy material on the sur- face, all of which interferes with cultivation and makes it less effective, more difficult and more expensive. Good preparation brings about conditions favorable to a greater supply and a well maintained supply of water, makes plant-food more available and enables the roots of the crops to penetrate further and have an extended feeding area, admits air and warmth, etc., while cultivation maintains these desirable conditions. Question: WHAT BENEFITS ARE DERIVED FROM CULTIVATION? Answer: If, after a field of cotton, corn, tobacco, cabbage or potatoes, has been planted, no further cultivation should be given these crops, the failure would be marked. The main 124 MAKING SOIL AND CROPS PAY MORE objects of cultivation are the keeping of the soil in good condi- tion while the crop is growing, and the destruction of weeds. Cultivation pulverizes and loosens the surface, prevents the formation of a crust, checks the evaporation of water from the soil, prevents wide fluctuations in the moisture in the soil, modifies the extremes of temperature, kills weeds which would shade the ground and rob the soil of plant-food and water, and increases the effects of manures and commercial fertilizers by maintaining conditions in the soil which enable the crops to better utilize both the natural and applied food, and prevents the loss of plant-food and moisture that would be used by weeds if allowed to grow. Dip one end of a lump of sugar in coffee and the coffee will rapidly rise through the lump. The grains of sugar which compose the lump are very small but have been closely pressed together and the coffee e: asily passes from one particle to another and the whole lump becomes wet with coffee. Soil-water will spread quickly through finely pulverized and compacted soil in the same way. Question: WHEN AND HOW SHOULD A CROP BE CUL- TIVATED? Answer: Since the object of cultivation is to keep the surface of the soil in good condition and to destroy and prevent weeds, it is evident that frequent cultivation at the right time with the right implements will prevent the surface from getting in a poor condition and prevent the growth of weeds. If the soil is not allowed to get in poor condition, and weeds are not allowed to grow, the soil is continuously in good condition, and weeds can- not do harm if not allowed to grow. If the field is not in the MAKING SOIL AND CROPS PAY MORE 125 best condition when a crop is planted cultivation should begin with a light harrow or weeder before the seeds are up. Light and thorough cultivation at this time hastens the germination by breaking the clods, admitting air and conserving water, and the plants come up promptly and strong. Cultivation should begin after each rain as soon as the soil is dry enough, and should be done with that implement which will most quickly, cheaply and thoroughly stir all the soil surface and pulverize it to the proper depth for the soil and crop. Cover another lump of sugar with finely pulverized sugar and dip the lump in coffee. The coffee will rise rapidly through the lump of sugar but very slowly through the loose sugar on top of the lump. This illustrates the value of a pulverized and compacted soil upon which an earth mulch has been made. The mulch holds the moisture in the soil. Question: WITH WHAT IMPLEMENTS SHOULD A CROP BE CULTIVATED? Answer: Great ingenuity has been displayed by modern imple- ment inventors in devising cultivators for every class of soil, every kind of crop and every variation in the methods employed for the preparation of the soil for different crops. Some crops _ are sown broadcast, some in continuous drills or rows, some at - various intervals in drills or rows, and some in squares, triangles, etc. Implements are in use for the cultivation of all these. The best implement with which to cultivate a crop is one that will best work the spaces between the rows or between the plants in the rows or both. A cultivator should stir all the soil and stir it well, leave a fine earth mulch on the surface, prevent weed 126 MAKING SOIL AND CROPS PAY MORE growth before it begins, and destroy all weeds that have begun to grow. Weeders and harrows will cover a wide surface if em- ployed as soon after a rain as the soil is dry enough and give the best soil condition, incidentally destroying weeds as they are germinating. Later on cultivators with fewer and larger work- ing points must be used so that they may enter the soil which is harder, and cut the roots of weeds that have begun to grow. Another type of two row cultivatorin common use. Fertile, well prepared and well cultivated soil will produce abundant crops. Question: WHY DO PLANTS HAVE ROOTS ? Answer: Roots anchor or fix plants in the soil and supply them with food and water. The roots are the mouths of plants, and the active parts of them are covered with minute root hairs through which the food and water enter. The larger roots are the throats of the plants through which food and water are carried into the plants and then to the leaves which act as both stomachs and lungs for the growing plants. Crops cannot grow without roots, and the more roots each plant has the more food it is capable of taking. It is evident then that cutting or bruis- ing of roots by cultivation is injurious. A very large proportion of the roots of crops is found in the prepared soil near the sur- face. If cultivation is deep the roots are broken and the plant suffers. If cultivation is frequent and shallow the roots are not only unmolested but the stirring of the soil above them holds water where the roots are, admits air and develops conditions favorable to root and plant growth and to the exercise of root and plant functions. MAKING SOIL AND CROPS PAY MORE 127 Question: WHY IS CULTIVATION SO IMPORTANT IN DRY SEASONS? Answer: When rain falls upon the earth it soaks into the soil until the surface is full and any additional rain will run off. As soon as rain ceases to fall moisture begins to evaporate back into the air. Evaporation takes place at the surface of the soil, and the water evaporated comes from down in the soil through the little holes or capillary tubes it descended through. Culti- vation in dry weather breaks up and covers over these tubes so that the water that rises is intercepted below the surface and is there held by the soil particles just where the greatest number of feeding roots are found. Thus it is seen that cultivation in dry weather not only prevents large quantities of water from evaporating but holds the decreasing supply where it is most accessible to the roots of the crop. The soil in the bottom of this foot print is not only compacted but the clods are crushed. The darker appearance of the bottom of the foot print is due to the moisture that has risen to the surface of the soil. The roller and other surface compacting implements produce this effect. If the surface soil remains as it appears in the foot print or is left by the roller the moisture will rapidly evaporate into the air. A thorough stirring of the soil surface will form a loose earth mulch and trap or retard the passage of the water into the air thus maintaining a supply for the crop. Question: HOW LATE SHOULD CULTIVATION BE CONTINUED? Answer: Many farmers make the great mistake of having a certain date in a certain month for ceasing to cultivate their different crops. This is a mistake more often than otherwise, since it is a common practice to “lay by” or stop the cultivation of a crop at just the time when cultivation will do it great if not 128 MAKING SOIL AND CROPS PAY MORF the greatest good. Cultivation is for the purpose of making the soil a better place for the crop to live and grow in. It is more proper to say that the soil is cultivated, not the crop. From the time a crop is in full blossom on until the seeds or fruits are developed is when the crop uses the greatest quantity of plant- food and water, and uses them in the briefest time, consequently Three horse common plank drag. An excellent tool for crushing clods and compacting the soil, which insures perfect capillarity, allowing the seed to come into direct contact with the moist soil. shallow cultivation should be continued for the benefit of both soil and crop. Late cultivation not only benefits the growing crop but leaves the soil in better condition for the next crops, and destroys weeds that would injure the growing crop at its fruiting time, and that would mature seeds that would make other weeds and injure the next crop on that land. Rotation of Crops Question: WHAT IS ROTATION OF CROPS? Answer: The amounts of plant-food removed by different crops varies widely. Grain crops remove phosphorus in excess; tobacco and root crops take large quantities of nitrogen. If one crop is grown on the same land for a period of years the ele- MAKING SOIL AND CROPS PAY MORE 129 ments of plant-food used by that crop in the largest amount will be unduly reduced, while elements not used largely will un- duly increase. If another crop follows the first one, and this second crop has little demand for the element most in demand by the first, and a greater demand for the element the first crop consumed the least of, the growing of these two crops alternately would conserve the soil’s fertility. While this could not be said to represent a system of rotation, yet it illustrates one of the most important effects of the rotation of crops. Some crops feed heavily upon the subsoil, get their food deep down in the soil and raise it to the surface. Their deeply pene- trating roots open the way for the descent and rise of water and for the better penetration of the roots of future crops. Air is more freely admitted and performs its invaluable functions. Other crops feed near the surface and rapidly consume the plant-food within their reach. The system of rotation which employs these kinds of crops will enable the farmer to make better and more profitable use of the plant-food in the soil, and will not exhaust it. Some crops are sown broadcast like hay crops, small grain, etc., while some are sown in drills and cultivated. The treat- ment of these two classes varies widely. If crops sown in rows are grown continuously in the same field there will be a loss of humus and water holding power of the soil, washing will be more severe, the surface will become harsh and uncongenial and more difficult to work. “Rotation of Crops”? does not merely mean the change of crops grown on a given field nor is diversification synonymous with rotation. Rotation of crops means the establishment of a cropping system by which the several crops grown on a farm may systematically rotate from field to field in such order as to balance and distribute the draft upon the resources of the farm, economize in the utilization of fertilizers and at the same time make them more profitable, avoid the toxic effects of some crops, destroy weeds, Jessen the injurious attacks of diseases and insects, regulate, control and conserve the water supply, in- crease the humus supply in the soil, facilitate diversification, distribute and economize labor and at the same time supply the home need and produce money crops for the financial needs of the farm. Question: WHAT ARE THE BENEFITS OF ROTATION? Answer: Rotation aids in rapidly freeing the land of noxious weeds; drives away or starves out injurious insects; gets rid of 130 MAKING SOIL AND CROPS PAY MORE fungus and bacterial diseases; admits of the introduction of a variety of crops and promotes diversified farming; enables the farmer to use cover crops and catch crops to greater advantage; distributes the labor required for preparation, cultivating, har- vesting and marketing through the year; avoids an undue rush of work at one season and idleness at another; and enables the farmer to use fertilizers more wisely and to get greater profits from them, thereby making his soil and crops pay more. Suggested Rotations: i 2: First Year. First Year. Corn with Cowpeas. Wheat and Red Clover. Second Year. Second Year. Wheat, oats or rye followed Red Clover. by Soy Beans. Third Year. Third Year. Corn and Cowpeas. Crimson or Bur Clover. 4, Cotton. First Year. Be Tobacco followed by Clover First Year. and Grass Mixture. Cotton followed by a Second Year. Legume or Small Grain. Clover and Grass. Second Year. Third Year. Small Grain followed by Clover and Grass. Cowpeas or Soy Beans. Fourth Year. Third Year. Corn and Peas. Crimson Clover plowed Fifth Year. down for Corn with Cow- Wheat or Oats cut for Hay peas in the Corn. and followed by Tobacco. BR RED CLOVER CRIMSON CLOVER SOY BEAN MAKING SOIL AND CROPS PAY MORE 131 Question: HOW DOES ROTATION BENEFIT AND REST THE LAND AT THE SAME TIME? Answer: While rotation rests the land, at the same time it also produces a crop, conserves plant-food and moisture, adds organic matter to the soil, enables the soil to resist drouth, avoids the robbery of plant-food by noxious weeds, deepens the soil, enables the soil to more judiciously and profitably respond to applications of fertilizers, gives surer crops and heavier yields, distributes labor through the year, enables the farmer to get the most out of his land with the least soil exhaustion, to diversify and make greater profits with less expense and thus keeps the soil so fresh, well fed, healthy and vigorous that the growing of one crop leaves the land strong and ready for the next. Question: HOW DOES ROTATION BENEFIT THE CROP? Answer: Rotation balances the plant-food supply in the soil and a greater variety of crops may be grown; it supplies the different crops with greater quantities of the kinds of food that each crop needs most; it protects the crop from drouth, insects, diseases and weeds; makes the home of the crop more congenial; gives better opportunity to prepare the soil best for each crop; gives each crop the best chance; and, larger, better and more profitable crops are produced at a minimum cost, with the least injury to the land, and there is less danger of crop failures. ES x — eb y ? i if A, ‘ AY RY \ wN MELILOTUS(SWEET CLOVER) Question: HOW DOES ROTATION CONSERVE AND RESTORE FERTILITY? Answer: Rotation aids in maintaining good soil conditions and conserves fertility in addition to aiding in checking the damage done by weeds, insects and diseases. Growing the same crop on 132 MAKING SOIL AND CROPS PAY MORE an area of land continuously unfits the land for the crop grown or for crops of similar character or habits and requiring the same cultural treatment. If a legume crop is grown continuously for several years on the same land and the crop harvested there will be an accumulation of nitrogen in the soil and diminished supply of phosphorus, potash and lime. If clean culture crops like cotton and tobacco are grown continuously the nitrogen supply in the soil will be seriously decreased. Clean culture crops tend to decrease the humus supply of the soil and the soil becomes poor on account of the loss of humus and the con- sequent deterioration in the physical properties. It is obvious that a system of rotation planned for the purpose of (1) checking weeds, insects and diseases and cleansing the land; (2) of resting and restoring the land by leaving it in sod or growing legumes; and (3) growing a money crop will not only check the loss of fertility but actually make the land more and more fertile and at the same time use the plant-food in the soil rationally. Question: WHAT CROPS SHOULD BE GROWN IN DIFFERENT SECTIONS AND ON DIFFERENT FARMS? Answer: Successful farming in any section of any country and on individual farms is primarily controlled by the selection of such crops for each farm as are best adapted to the climate of that section, adapted to the soil and to the seasonal distribution Kentucky tobacco field of Mr. D. W. Myers, Horse Cave, Ky. Mr. Myers is an enthu- siastic user of V-C Fertilizer and says, ‘*V- C has given me perfect satisfaction from start to finish.”’ of rainfall. A Wisconsin farmer would not attempt to grow cotton, nor would a New England farmer attempt to grow MAKING SOIL AND CROPS PAY MORE 133 oranges. There is quite a number of distinct crop sections scat- tered throughout the United States, and it is a business problem to grow most extensively only the crops that succeed best in the various sections. Sugar cane in Louisiana, cotton in South Carolina, alfalfa in Colorado, rice in Texas, wheat in Kansas, tobacco in Kentucky, corn in Illinois, red clover in Indiana, timothy in New York are examples of special adaption of crops. A number of crops are usually adapted to any one section, and the owner of one individual farm should not only choose crops adapted to his soil and climate but also those for which there is the greatest demand, those that he knows enough about to successfully grow and market, and those that give the highest net profit. Question: WHY ARE SOME SOILS ADAPTED TO SOME CROPS AND NOT TO OTHERS? Answer: While temperature and rainfall are controlling in- fluences affecting the profitable culture of all crops, yet with both these present there are special soil conditions and com- positions necessary to the profitable cultivation of many soils. Corn probably is the most widely adapted important crop grown in the United States, and tobacco the most specifically exacting crop. The quality of corn only to a slight extent is affected by soil types, while the quality of tobacco is controlled by soil types. The size of the particles which make a soil, the compositions of a soil, a soil’s ability to permit water to be freely distributed in it, and the forms and proportions of the elements of plant-food found in a soil may make it suited or unsuited to a crop or several crops. While the unsuitableness of some soils may to some extent be overcome by soil treatment that will alter soil conditions, and soil feeding that will improve its composition, the highest degree of success will come from the selection of the crops in each locality which are best adapted to existing soil conditions. Crop Enemies Question: ARE PLANTS ATTACKED, INJURED AND KILLED BY DISEASES? Answer: Every plant grown is subject to disease. The dis- eases which affect them are nearly all fungi, such as rust and smut, or bacteria, like wilt and blight. Fungi and bacteria live as parasites within the tissues of plants, and always injure and often destroy whole fields. Their destruction of crops 134 MAKING SOIL AND CROPS PAY MORE amounts to millions of dollars in losses each year, a large pro- portion of which could be avoided if the proper precautions were taken to avoid, prevent or destroy the diseases. Losses from diseases may be checked by rotation of crops, by growing re- sistent varieties, and by combating them by the use of sprays. Vegetables, and especially fruits, are often sprayed with great success, and the investment of a dollar in spraying often gives a profit of ten or more dollars, and may save a crop from total destruction. Knowledge of the life history of plant diseases and of the remedial methods best adapted for combating them is necessary to the profitable growing of many crops, and the farmer who is not prepared to successfully fight them runs the risk of losing a part or all of his crops. Question: ARE INSECTS INJURIOUS TO CROPS? Answer: Insects are not all injurious for many are of great benefit to crops and to man. Many plants depend largely upon insects for pollination, and many other insects do no harm. There are also many insects which live upon and destroy those This illustration shows the life history of the Boll Weevil, from the egg to the mature insect. This insect annually destroys over $20,000,000.00 worth of cotton in our Southern states. MAKING SOIL AND CROPS PAY MORE 135 that are harmful. More than $200,000,000 worth of silk is an- nually produced by the silk worm, and in the United States alone the honey bee produces nearly $25,000,000 worth of honey annually. Insects may attack every part of every plant. Large areas of forests are annually destroyed by insects, and millions of dollars of damage is done to standing timber. It is safe to place the loss to our various crops from the ravages of insects at ten percent per annum. It is estimated that the loss from the codling moth alone amounts to an annual sum of $12,000,000. The boll weevil annually destroys $20,000,000 worth of cotton, and the chinch bug destroys $40,000,000 worth of grain each year. This is a $72,000,000 loss annually from three insects alone and it is probable that there are half a million different kinds of insects, many of which are destructive to crops. A knowledge of the means effective in the control of insect pests should be possessed by every farmer, orchardist, trucker and livestock man. Control of insects often doubles the income from a crop, while uncon- trolled they may destroy whole crops and always do them great damage. | | { LaF * al =* Pl if = 7 aH rz E > ‘ eft ~ e 1 ‘i Waies 8 wy SS <7 BN, ely ca oe es a DS Foye r x ay, y vy -