BROOM-CORN EXPERIMENTS AT WOODWARD, OKLAHOMA. 



39 



row space at the same rate of seeding as they do in the first section. 

 The reaction of the crop under these two methods is quite similar 

 in many ways. While the number of suckers produced increased as 

 the stands decreased, the total percentage of suckers developed under 

 this method is approximately one-third less than developed when the 

 other method of spacing the plants was used. This should tend 

 naturally to increase the percentage of headed stalks, but it is not 

 in proportion to the decrease in the production of suckers. The in- 

 crease in headed stalks amounts to 5 per cent only, and the decrease 

 in suckers amounts to 35 per cent. 



In yield, quality, and length of brush, the reaction of the crop to 

 this method of spacing the hills and plants is quite similar to that 

 of the first method discussed. The response of the crop at the differ- 

 ent rates varies with seasonal conditions. The thicker stands usually 

 outyield the other rates in favorable seasons, and the thinner stands 

 give the best results in dry years. At the intermediate rates fair to 

 good yields of good-quality brush are produced in all seasons. 



Table XV. — Agronomic data for Acme broom com in the combined rate-of- 

 seeding and spacing experiments at the Woodward {Okla.) Field Station 

 during the 5-year period from 1914 t° 1918, inclusive. 



[Two plants in each hill; rows spaced 3.5 feet apart.] 





Row 



space 



Length of pe- 



Percentage 



-4^ 



Yield of brush 



Length of 

 brush 

 (inches). 



■d 



o 

 o 



Year. 



(inches). 



riod (days). 



of 





p< . 



per acre 

 (pounds). 



M 







A . 



J, 





K 



TJ • 















03 2 





A 



M 





?_ s i 



"e5 



M 







O 



o 



03 

 4^ 



o 



o 



g. 













o 



a 







o 



o 



O 



o 



o 



<D 





H 



CI 



> 



Ph 



En 



m 



W" 



n 



a 



Ph 



& 



C5 



Ph 



Ah 





f 6.6 



6.6 



73 



17 



90 







71.3 



4.3 



225 



60 



285 



18.0 



14.0 



79.9 





8.2 



8.2 



73 



17 



90 







75.6 



4.3 



250 



100 



350 



18.0 



15.0 



71.4 



1914 



11.6 



11.6 



73 



17 



90 







79.6 



4.0 



275 



60 



335 



20.0 



15.0 



82.1 





17.8 



17.8 



73 



17 



90 







84.3 



4.0 



365 



20 



385 



24.0 



15.0 



95.1 





20.0 



20.0 



73 



17 



90 







83.1 



4.0 



265 



25 



295 



22.0 



16.0 



91.4 





23.0 



23.0 



73 



17 



90 







86.1 



4.0 



340 



10 



350 



24.0 



15.0 



97.1 





f 7.6 



7.6 



75 



16 



91 







80.8 



5.8 



710 



160 



870 



21.0 



19.0 



81.6 





10.6 



5.0 



75 



16 



91 



6.0 



91.7 



5.8 



735 



105 



840 



22.0 



20.0 



87.5 



1915 



11.6 



5.5 



75 



16 



91 



4.7 



92.8 



5.8 



670 



135 



805 



22.0 



20.0 



83.2 





17.0 



7.3 



75 



16 



91 



14.0 



91.4 



5.8 



600 



90 



690 



24.0 



22.0 



87.0 





19.4 



6.2 



75 



16 



91 



36.1 



91.7 



5.8 



695 



80 



775 



24.0 



22.0 



89.7 





.28.0 



8.0 



75 



16 



91 



43.2 



97.1 



5.8 



580 



45 



625 



26.0 



24.0 



92.8 





f 9.6 



4.7 



73 



14 



87 



2.0 



85.7 



4.3 



472 



39 



511 



19.5 



13.0 



82.6 





13.2 



6.0 



71 



16 



87 



9.7 



89.8 



4.5 



556 



50 



606 



24.0 



22.0 



91.7 



1916 



•U8.4 



7.8 



71 



14 



85 



14.8 



91.3 



4.5 

 4.3 



511 



44 





20.5 



18.0 

 17.5 



92.0 



80.0 





25.0 



8.8 



71 



14 



85 



29.7 



92.9 



400 



100 



500 



23.0 





(.33.2 



13.6 



71 



12 



83 



22.4 



92.0 



4.3 



305 



56 



361 



22.5 



19.0 



84.6 





f 6.0 



6.0 



96 



24 



120 







87.0 



5.5 



405 



100 



505 



14.5 



12.5 



80.2 





9.8 



4.4 



101 



19 



120 



10.9 



92.2 



5.0 



428 



50 



478 



16.0 



13.5 



89.5 



1917 



13.4 

 21.4 



6.0 

 8.3 



99 



80 



18 

 29 



117 



109 



10.5 

 22.6 



92.8 

 85.5 



5.5 

 4.0 



330 



228 



122 

 45 



422 

 273 



16.5 

 15.0 



13.5 

 13.0 



71.1 





83.7 





23.8 



8.5 



80 



28 



108 



28.7 



88.2 



4.0 



289 



39 



328 



16.5 



14.5 



88.1 





41.4 



12.5 



80 



28 



108 



40.3 



89.0 



4.0 



211 



22 



233 



18.0 



15.0 



90.5 





f 6.2 



6.2 



76 



30 



106 







21.8 



3.5 



67 



39 



106 



16.5 



13.0 



61.6 





9.5 



9.3 



77 



20 



97 



2.9 



65.0 



3.5 



186 



64 



250 



18.0 



13.5 



74.3 



191S 



14.4 

 19.9 



13.6 

 17.3 



77 

 80 



20 



17 



97 

 97 



5.3 

 13.4 



86.7 

 78.7 



3.8 

 3.5 



271 

 200 



29 

 22 



300 

 222 



16.5 

 16.5 



11.0 



10.5 



90.5 





90.0 





24.3 



19.5 



74 



10 



84 



19.8 



82.5 



4.0 



343 



14 



357 



22.5 



1S.0 



96.0 





36.1 



25.1 



72 



12 



84 



30.0 



87.2 



4.0 



300 



21 



321 



22.5 



17.0 



93.0 



