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BuUetin No. 233

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REFERENCES.

Barnes, T. C. 192S. A biological study of the white pine weevil with special

reference to flight, oviposition, phenology, geotropism, parasites, and injuries

to young trees. Doctorate Thesis. Bussey Institution, Harvard University.
Britton, W. L. 1919. The white pine weevil. 19th Report of State Entomolo-
gist. Conn. Agr. Exp. Sta. Bui. 218, p. 144-155, Figs. 17-19.
Currie, Rolla P. 1905. The white pine weevil. Catalog of exhibit of economic

entomology at the Lewis and Clark Centennial Exposition, Portland, Ore.,

U. S. Bur. Ent. Bui. 53, p. 91
Felt. E. P. 1913. The white pine weevil. Twenty-ninth Report of the State

Entomologist of New York, p. 30-33.

1926. P. approximatus Hopk. in the roots of Scotch pine. Insect Pest Sur-
vey. Oct. 1.
Graham, S. A. 1916. Notes on the control of the white pine weevil. Jour.

Econ. Ent. Vol. 9, p. 549-551, Table 1.

1926. Biology and control of the white pine weevil, Pissodes strobi Peck.

Cornell Univ. Agr. Exp. Sta. Bui. 449, p. 1-32, Fig. 14.
Hopkins, A. D. 1907. The white pine weevils. ' U. S. Bur. Ent. Circ. 90, p. 1-8,

Fig. 6.

1911. Contributions toward a monograph of the genus Pissodes, U. S. Bur.

Ent. Tech. Ser. No. 20, p. 1-68, Figs. 1-30
MacAloney, H. J. 1926. The white pine weevil problem in the New England

states. Pprs. Forest Prot. Conf., N. Y. St. Coll. Forestry, Nov. 10-12, p. 31-

43, Fig. 4. Syracuse, N. Y.
Packard, A. S. 1890. The white pine weevil, U. S. Ent. Com. Rept. 5, p. 734-

741, 829-830.
Peck, \V. D. 1817. On the insects which destroy the young branches of the pear

tree and the leading shoot of the Wevmouth pine. Mass. Agr. Repository

and Journal, Vol. 4. No. 3. p. 205-211, pis. 2.
Peirson, H. B. 1922. Control of the white pine weevil by forest management.

Harvard Forest Bui. 5. p. 1-42.
Plummer, C. C. 1929. Oogenesis in the white pine weevil. Unpublished data.
Say, T. 1831. Description of North American Curculionidae and an arrangement

'of some of our own species agreeably to the method of Schoenherr, p. 14,

New Harmony. 3rd. , -, t-v ^ \

Tavlor R L 1928 A new species of Lonchaea Fallen (Lonchaeidae, Diptera).

' Bui. Brook. Ent. Soc. Vol. 23, p. 191-194. .,,,„., , ^.

1928 The Arthroped fauna of coniferous leaders weeviled by Pissodes stroDi

(Peck). Psyche, Vol. 35, p. 217-225. _ .

Walden B H 1914, 1915. Experiments in controlling the white pine weevil.

Rep. Conn. Agr. Exp. Sta. for 1914, p. 173; 1915, p. 134.

INSPECTION OF COMMERCIAL
FERTILIZERS

MADE FOR THE
STATE DEPARTMENT OF AGRICULTURE

The inspection of commercial fertilizers reported in this
bulletin was made under the direction of the Honorable
Andrew L. Felker, Commissioner of Agriculture. The state
inspector, Mr. Eugene D. Sanborn, collected samples of
117 brands of fertilizer materials which were offered for
sale by dealers or had been deliyered to consumers during
the year ending June, 1929. The general character of the
fertilizer materials collected is shown by the following
classification :

Complete fertilizer 94

Nitrogen and superphosphate 1

Nitrate of Soda 4

Ground bone 6

Natural manures 6

Superphosphate (acid phosphate) 4

Tankage 1

Basic slag 1

ir

2 X. jr. AGI{. FA'PKr!i:^IKKT STATION- f HllUf't i 11 248

THE FERTILIZER LxVW

The New llaiiii)shire fertilizer law applies to all fertilizer
materials ottered for sale, whether mixed materials in the
form of complete fertilizers or unmixed materials as su[)er-
phos])hate (acid ])liosphate), nitrate of soda. <iroiind bone,
tankajie. etc. Undei- the ])rovisions of the law every man-
ufacturer or dealer who shall sell or otfer for sale any fer-
tilezer material shall furnish with each lot or paekag-e a
clearly printed statement certifying the brand name under
which it is sold, the name and address of the manufacturer,
the number of net ])ounds the ])ackage contains and a
chemical analysis stating the minimum percentages of
nitrogen, of total phosphoric acid, of available phosphoric
acid and of watei* soluble ])otash. Xo person shall sell or
offer for sale an}- pulverized leather, hair or wool waste,
])eat, garbage tankage, or any inert material whatsoever,
Avithout an explicit printed statement of the fact conspicu-
ously fixed to every package of such material.

The state official in charge of the administration of the
fertilizer law is the Commissioner of Agriculture.

In Table I are given the grades of complete fertilizers
collected, the number of brands found in each grade, the
average analysis of each grade and the average retail price
per ton.

Dec, 1929J

FERTILIZER INSPECTION, 1929

TABLE I

4-i

-i-i

*^ a

a

a

a 2

_H a

o

t,

11

1) u
U (U

Qt

u

7!

— U

z. U

verage
total
phoric

us •-

a s =

verage
water
potash

o

X

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<

<

0.82—9—4

3

1.04

9.95

9.18

4.02

$43.33

0.82 — 10 — 3

1

0.97

10.93

10.28

3.06

45.00

1.65—8-2

1.85

8.99

8.24

2.24

35.67

1.65—8—10

2

1.65

8.76

7.90

10.23

42.50

1.65—9—3

4

1.78

10.01

9.32

3.10

45.00

1.65 — ^10 — 2

3

1.90

11.31

10.63

2.34

44.00

1.65—10—4

1

1.75

11.10

10.32

4.00

47.00

1.65—12 — 1

4

1.88

12.73

12.00

4.23

40.00

2.47— S — 4

8

2.58

8.99

8.15

4.13

38.75

2.47—8—0

1

2.56

10.29

9.43

6.17

65.00

2.47—8—10

1

2.67

8.85

8.00

10.00

57.00

2.47—10—4

1

2.69

10.77

10.00

4.04

45.00

2.47 — 10—6

2

2.92

9.88

9.08

7.17

44.00

3.2!) 6 10

10

3.29

6.85

6.26

9.90

48.00

3.29—8—4

12

3.45

9.20

8.55

4.10

44.25

3.29—8—6

1

3.29

8.97

8.35

6.42

49.00

3.29—8—7

1

3.38

8.66

8.00

7.24

45.00

3.29—8—10

1

3.67

8.99

8.00

10.19

00.00

3.29—12 — 4

1

3.30

12.98

12.42

4.11

1 20.00

3.29—16—4

1

3.29

16.15

15.84

4.0s

52.00

4 8 8

1

4.38

8.95

8.14

8.09

45.00

4 — 12—4

1

4.21

12.79

12.29

4.10

48.00

4.11—8—7

12

4.19

8.98

8.24

7.04

49.3:;

4.11—10 — 5

1

3.91

10.50

9.75

5.23

49.00

4.93—6—4

1

4.94

6.73

6.28

4.00

30.00

4.93—8—3

1

4.80

10.40

9.32

5.01

05.00

4.93-8-7

1

5.11

8.96

8.43

7.07

4.93—10—4

1

4.94

10.98

10.30

4.00

5.76—6—5

3

5.52

6.85

6.31

5.12

5l!33

5.76-8-0

1

5.53

9.48

8.00

7.04

54.00

6— S— 6

1

5.69

8.96

8.58

0.32

50.00

0—15—9

1

6.00

15.93

15.26

8.86

34.20

6.58 — 6 — 6

2

6.43

7.11

6.63

6.29

53.00

8—10—10

1

8.00

16.25

15.58

10.08

00.00

8.22—3—8

1

8.22

8.79

5.71

8.14

90.00

8.22 — 3.50 — S

1

8.22

3.91

3.77

8.12

80.00

8.22—10—14

2

7.64

16.09

15.63

13.22

78.50

10 — 20 — 15

1

9.80

20.71

20.39

15.09

90.00

CONFORMITY TO GUARANTEE

Thirty-eight of the 117 brands analyzed were found to
contain les.s than the guarantee of one or more of the three
constituents. The total number of guarantees on the 117
brands was 432, the total number of deficiencies 53, the
per cent deficient 12.3. This shows some improvement over

4 N. H. AGR. EXPERIMENT STATION [Bulletin 248

last year when the corresponding per cent was 19.6. Many
of the deficiencies were comparatively negligible, the small
deficiency in one constituent being offset in value by over-
run in other constituents.

A detailed summary of the deficiencies in the 38 brands
which failed to meet their guarantees follows :

Total
Brands Deficiencies

Nitrogen, total phosphoric acid, available

phosphoric acid and potash 1 4

Nitrogen, total phosphoric acid and

potash 1 3

Nitrogen, available phosphoric acid and

potash 0 0

Nitrogen, total phosphoric acid and

available phosphoric acid 0 0

Nitrogen and total phosphoric acid 1 2

Nitrogen and available phosphoric acid 1 2

Nitrogen and potash 2 4

Nitrogen 18 18

Total phosphoric acid, available phos-
phoric acid and potash 0 0

Total phosphoric acid and potash 0 0

Available phosphoric acid and potash 1 1

Potash 2 2

Total phosphoric acid and available phos-
phoric acid 6 12

Total phosphoric acid 1 1

Available phosphoric acid 4 4

38 53

NITROGEN DEFICIENCIES
One hundred twelve brands were guaranteed to contain
nitrogen in amounts varying from 0.82 per cent to 10 per
cent. Twenty-four failed to meet the guarantee. The
amounts of the deficiencies were 0.05 per cent; 0.05 per
cent; 0.08 per cent; 0.11 per cent; 0.11 per cent; 0.11 per

Dec, 1929] fertilizer inspection, 1929

cent

cent
cent
cent
cent

0.11 per cent

0.14 per cent
0.20 per cent
0.22 per cent

0.11 per cent; 0.12 per cent; 0.13 per

0.16 per cent; 0.18 per cent; 0.20 per
0.20 per cent ; 0.20 per cent ; 0.22 per
0.28 per cent ; 0.31 per cent ; 0.50 per
0.62 per cent ; 0.68 per cent. One-half of the deficien-
cies was less than 0.20 per cent. These deficiencies decrease
the commercial valuation of the fertilizers less than $1.00
per ton. The greatest deficiency, 0.68 per cent, is equivalent
to appi'oximately $3.50 per ton.

PHOSPHORIC ACID DEFICIENCIES

One hundred thirteen brands were guaranteed to contain
phosphoric acid. Sixteen brands failed to meet their guar-
antees. Three were deficient in total phosphoric acid, six
in available phosphoric acid and seven in both total and
available phosphoric acid. The deficiencies in total phos-
phoric acid were 0.16 per cent ; 0.18 per cent ; 0.25 per
cent ; 0.28 per cent ; 0.33 per cent ; 0.35 per cent ; 0.49 per
cent; 0.68 per cent; 0.81 per cent; 1.36 per cent. The
deficiencies in available phosphoric acid were 0.16 per
cent; 0.20 per cent; 0.23 per cent; 0.25 per cent; 0.28 per
cent ; 0.32 per cent ; 0.42 per cent ; 0.50 per cent ; 0.59 per
cent; 0.74 per cent; 1.52 per cent; 1.61 per cent; 3.13 per
cent. A deficiency of 3.13 per cent available phosphoric
acid is equivalent to approximately $5.00 per ton.

POTASH DEFICIENCIES

One hundred samples were guaranteed to contain potash.
Seven failed to meet the guarantee. The amounts of the
deficiencies were 0.14 per cent ; 0:19 per cent ; 0.19 per cent ;
0.31 per cent; 0.39 per cent; 0.66 per cent; 1.56 per cent.
The greatest deficiency is equivalent to about $1.50 per ton.

In the tabulation of the analyses in the following pages
deficiencies of two-tenths of one per cent or more are shown
in Italics. The names of the manufacturers are arranged
alphabetically, and under the manufacturer the different
brands are arranged alphabetically or numerically by
formula.

N. H. AGR. EXPERIMENT STATION [Bulletin 248

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FERTILIZER INSPECTION, 1929

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