58 



BULLETIN 981, U. S. DEPARTMENT OF AGRICULTURE. 



cultivated with an ordinary corn cultivator, but narrow rows require 

 some such tools as are used for sugar beets. Specific directions for 

 the planting, cultivating, and harvesting of row plantings have been 

 given under " Hay production." The method of planting and cultivat- 

 ing the rows is the same whether they are intended f or.hay or for seed. 

 The rate of planting in rows or close drills should be about the same as 

 for hay, because the seed matures more uniformly in thick stands. 

 The usual practice has been to sow rather thinly for seed production, 

 but this has been warranted only by the scarcity and high price of seed. 



Table XX. — Yields of Sudan grass seed under different methods of seeding. 





Years of test. 



Plats. 



Yields of seed per acre. 



Location of test. 



Size. 



Replica- 

 tions. 



Broadcast 



or in close 



drills. 



Cultivated rows. 





18 to 24 

 inches 

 apart. 



36 to 44 

 inches 

 apart. 



Humid regions: 



1913 



Acres. 



1 

 1 

 1 



Pounds. 

 380 



Pounds. 

 360 

 556 



Pounds. 

 400 



Temple, Tex 



Stillwater Okla 







361 



1914 



0.10 



195 



324 





1914 





640 





1913 







293 

 118 

 258 

 339 

 484 

 370 



320 

 457 

 398 

 228 



245 



Arlington Farm, Va. 



Blacksburg, Va 



College Park, Md.... 



1912... 



.45 



.05 



.05 



.025 



.015 



1 

 1 or 2 

 2 

 o 

 2 





1913,1914,1916. 

 1914 



274 

 142 



1916,1918 



1913 



754 



St Paul Minn 



778 



70S 











328 



417 



354 



Dry regions (not irri- 

 gated): 

 Davis, Calif 



1913 to 1915... - 



1913 to 1919 



1913 to 1917 



1914 



.05 

 .05 

 .05 



1 or 2 

 2 

 2 

 12 



4 or 5 

 1 

 2 

 1 



908 



86 



211 



1,026 



919 

 141 

 223 



784 



Chillicothe, Tex 



Amarillo, Tex 



158 

 228 



Lubbock, Tex 



Dalhart, Tex 



1913 1914 .. 







633 



1912 



.10 

 0.05 to .10 

 . 10 to 5. 5 



460 



28 

 





540 



1913 to 1919 



1914 



116 



311 



252 







111 



Garden Citv, Kans. . 

 Dodge City, Kans... 



Colby, Kans 



Ritzville, Wash 

 Wenatchee, Wash. . . 



243 



1914 



335 



1914 .. 









100 











910 



1915 



.25 



1 





500 











. 206 285 271 



Dry regions (irrigated): 

 " Bard, Calif 



1914,1915 







518 

 1,292 

 1,560 



466 

 1,183 

 1,250 



494 





1913, 1914, 1916 

 1914,1915 



.025 to .05 

 .05 



1 



2 



1 



1,010 



Chico, Calif 



1,210 





2,254 













1,506 



Umatilla, Oreg 



San Antonio, Tex... 







1 

 1 







508 



1911,1913,1914. 



.20 







627 











1,123 



966 



905 















i These averages include only those stations where data are given for all three methods of seeding. 



Harvesting for seed is nearly always done with a row binder or a 

 grain binder rather than a mower. The grass when tied in bundles 

 can be thrashed more efficiently and is easier to care for in the field. 

 The shockers should follow closely after the binder, because the seed 

 will become discolored if the bundles are allowed to lie on the ground 



