24 



BULLETIN 214, U. S. DEPARTMENT OP AGRICULTURE. 



Table XI. — Yields and cost of production of spring wheat by different methods at the 

 Belle Fourche Field Station, 1909 to 1914, inclusive. 



Treatment and previous crop. 



Number 

 of plats 

 averaged . 



Yield per acre (bushels). 



1909 



1910 



191». 



1912 



1913 



1914 



Average. 



Fall plowed: 



1 

 2 

 1 



23.6 

 31.5 

 23.3 





 

 





 

 





 

 



7.3 

 9.8 



7.9 



6.3 

 6.1 

 4.8 



6.2 





7.9 



Wheat 



6.0 









4 



27.5 



8.7 



5.8 



7.0 





3.0 

 2.4 



2.8 





 

 





 

 





Spring plowed: 



1 

 i 



1 



23.9 

 26.1 

 23.8 



5.6 

 7.9 

 6.2 



4.5 

 6.0 

 4.0 



6.2 



Oats 



7.1 



Wheat 



6.1 









3 



24.6 



2.7 



6.6 



4.8 



6.5 







 





 

 





 





 

 







1 

 1 



28.7 

 28.5 











3.8 

 1.7 

 .3 



9.5 

 6.8 



6.8 

 4.7 



7.5 





6.7 







Disked: 



10 

 1 

 1 



29.8 

 27.5 

 20.8 



10.3 

 12.3 

 9.4 



10.0 

 11.3 

 9.0 



9.0 





8.8 





6.6 









12 



28.9 



3.3 



10.4 



10.0 



8.8 







 

 









 





Green manured: 



Rye 



1 

 1 

 2 



30.6 

 29.9 

 24.5 



5.7 

 1.3 

 



13.4 

 13.5 

 12.0 



13.8 

 11.3 

 13.9 



10.6 





9.3 





8.4 









4 



27.4 



1.8 



12.7 



13.2 



9.2 

















5 



32.7 



4.3 



15.6 



16.1 



11.5 











28.7 



2.5 



10.8 



10.1 



8.7 













Summary of Yields and Digest of Cost. 





Tillage treatment. 



Previous crop. 



Yields, values, etc. 

 (average per acre). 



Fall 

 plowed 



(4 

 plats). 



Spring 

 plowed 



(3 

 plats). 



Disked 



(12 

 plats). 



Listed 

 (lplat). 



Sub- 

 soiled 



(1 



plat). 



Green 

 ma- 

 nured 



(4 

 plats). 



Sum- 

 mer 

 tilled 



(5 

 plats). 



Corn 

 (12 



plats). 



Small 

 grain 



(7 

 plats). 



Pota- 

 toes 

 (1 

 plat). 



Sor- 

 ghum 



(1 

 plat). 



Yields of grain: 

 1909... bushels. 

 1910 do.... 



1911 do.... 



1912 do.... 



1913 do.... 

 1914 do.... 



27.5 

 

 

 



8.7 

 5.8 



24.6 

 2.7 

 

 



6.6 

 4.8 



28.9 

 3.3 

 

 



10.4 

 10.0 



28.7 

 

 

 



9.5 

 6.8 



28.5 

 

 

 



6.8 

 4.7 



27.4 

 1.8 

 

 



12.7 

 13.2 



32.7 

 4.3 

 

 



15.6 

 16.1 



a 29. 3 

 3.4 

 

 



9.7 

 9.3 



27.6 



.7 

 

 



8.3 

 5.5 



27.5 

 1.7 

 

 



12.3 

 11.3 



20.8 

 .3 





 



9.4 

 9.0 



Average 



7.0 



6.5 



8.8 



7.5 



6.7 



9.2 



11.5 



8.6 



7.0 



8.8 



6.6 



Crop value, cost of 

 production, etc.: 



$4.90 

 6.56 



$4.55 

 6.09 



$6.16 

 4.75 



S5.25 

 5.55 



$4.69 

 7.17 



$6.44 

 14.61 



$8.05 

 11.50 











Cost 























-1.66 



-1.54 



1.41 



- .30 



-2.48 



-7.17 



-3.45 





















a Average of 11 plats. 



The only method that shows a profit here is disked corn ground. 

 This, on account of the low cost of preparation, shows an average 

 annual profit of $1.41 per acre. All other methods indicate the 



