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Full text of "Para grass (Panicum barbinode)"

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relations  service 


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-IMted  States  Department  of  Agriculture, 

A U»3  BUREAU  OF  PLANT  INDUSTRY/ 

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f ' -2  Forage  Crop  Investigations*- CA<^ 

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WASHINGTON,  D.  C. 

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PARA  GRASS  (Panicum  barbinode) . 

Para  grass  is  a native  of  South  America  and  is  grown  somewhat  commonly  in 
Florida,  to  a rapidly  increasing  extent  in  southern  Texas,  and  occasionally 
throughout  the  Gulf  coast  region.  It  is  a perennial  which  makes  its  best  growth 
on  damp  soils,  though  it  has  been  fairly  successful  on  Texas  ranches  on  heavy 
soils  without  irrigation  where  irrigation  is  needed  for  most  other  crops.  It  is 
not  injured  by  prolonged  overflows  and  makes  a vigorous  growth  where  the 
land  is  under  water  several  weeks.  It  is  especially  valuable  for  planting  on  ditch 
banks,  on  the  margins  of  ponds,  and  on  soils  too  wet  and  seepy  for  the  cultiva- 
tion of  other  crops.  It  is  used  for  both  hay  and  pasture.  Para  grass  will  not 
withstand  a lower  temperature  than  about  18°  F.  It  is  therefore  adapted  only 
to  the  extreme  southern  portion  of  the  country  and,  perhaps,  to  California.-  It 
has  succeeded  as  far  north  as  Charleston,  S.  C. 

Planting.— Para  grass  is  usually  propagated  by  planting  pieces  of  the  running 
s»ms,  which  often  make  a growth  of  20  to  30  feet  in  a season.  Pieces  of  the 
stem  Jr  om  6 to  12  inches  long  and  having  three  or  four  joints  grow  rapidly  when 
simply  fished  down  into  freshly  plowed  ground,  so  propagation  is  neither  diffi- 
cult nor  erxiensive.  The  first  growth  from  the  cuttings  is  in  long  prostrate  run- 
ners, but  assoon  as  the  ground  becomes  fairly  well  covered  the  plant  becomes 
more  erect,  son  reaching  a height  of  3 to  4 feet,  so  the  closer  the  cuttings  are 
planted  the  sooisj  a crop  will  be  secured.  When  cuttings  are  scarce  and  a more 
abundant  supply  is  v anted  for  the  following  season,  or  when  the  field  is  to  be 
used  for  grazing  only,  he  cuttings  may  be  planted  16  feet  apart  in  each  direc- 
tion, as  they  will  then  cever  the  ground  in  the  course  of  the  summer  and  afford 
considerable  good  grazing  though  the  amount  which  can  be  mowed  for  hay  will 
be  small.  When  cuttings  are  abundant  and  the  crop  is  wanted  for  hay  they 
should  be  planted  more  closely,  so  that  the  ground  may  become  covered  and 
the  erect  growth  secured  mt»re  quickly.  If  planted  only  1 or  2 feet  apart  in 
each  direction,  early  in  the  spring,  two  or  three  good  cuttings  for  hay  may  be 
made  the  first  season.  Cuttings  may  be  planted  at  any  time  from  early  spring 
until  as  late  as  September,  though  late  plantings  will  make  little  growth  until 
the  following  season. 

Uses.— If  wanted  for  hay,  Para  grass  should  be  cut  when  it  reaches  3 to  4 feet 
in  height.  From  three  to  five  cuttings  may  be  made  in  a season;  and  as  from  1 
*o  9 ^us  of  hay  are  secu refit  at  each  cutting,  the  total  yield  is  heavy.  Many 
and  Florida  growers  import  having  made  as  much  as  12  tons  of  hay  per 
.n  a season,  and  a few  report  much  heavier  yields.  The  hay  is  rather 
e,  butjs  d)f  excellent  quality  if  cut  as  soon  as  it  has  made  a sufficient 
nd  before  the  stems  become  hard  and  woody.  When  the  grass  is 
'Stand  too  long  before  cutting  the  stems  become  coarse  and  unpala- 
used  for  pasture  the  grass  stands  trampling  well  and  is  relished  by 
Vock. 

\greatly  increased  by  annual  plowings  and  diskings.  Some  grow- 
\>w  in  November  or  December,  as  plowing  at  that  time  is  sure  to 
^e  stems,  so  that  they  will  be  well  protected  in  case  of  a 
dtivators,  living  below  the  frost  line,  prefer  to  plow  in  July, 
nmer  cutting  of  hay,  but  loosening  the  soil,  so  as  to  secure 
Aber  cuttings  and  abundant  winter  grazing.  An  annual 
Vficial,  but  the  season  when  it  can  be  done  to  best  advan- 
of  the  probable  winter  temperature.  While  this  grass 
diich  root  at  every  point,  the  runners  are  wholly 
nd,  and  so  can  be  destroyed  without  great  trouble 
Yig  late  in  the  fall.  In  tropical  regions  of  constant 
'ss  is  difficult  to  control,  but  is  very  easily  man- 
Aional  frosts  occur,  or  where  irrigation  is  prac- 
\some  in  any  part  of  the  United  States  except, 
Sart  of  Florida. 

\ied  under  irrigation  in  Arizona  and  Califor- 
nia! grasses  known  that  will  yield  as  heavily 


S.  M.  Tracy, 
Special  Agent.