BAELEY IN THE GREAT PLAINS AEEA. 



15 



Table VII. 



Yields and cost of production of barley by different methods at the Williston 

 Field Station, 1910 to 1914, inclusive. 



Treatment and previous crop. 



Number 



of 



plats 



averaged. 



Yield per acre (bushels). 



1910 



1911 



1912 



1913 



1914 



Average. 





1 



0.6 



3.3 



46.1 



14.8 



17.4 



22.0 









1 

 1 



.8 

 .2 



5.8 

 4.6 



31.7 

 30.0 



14.4 

 15.6 



21.4 

 36.7 



14.8 



Oats 



17.4 









2 



.5 



5.2 



30.9 



15.0 



29.1 



16.1 









1 

 1 



.4 

 5.2 



4.2 

 12.7 



50.8 

 54.4 



28.6 

 21.9 



53.5 

 49.7 



27.5 





28.8 











1.4 



6.1 



42.6 



19.1 



36.7 



21.2 









Summary or Yields and Digest of Cost. 





Tillage treatment. 



Previous crop. 



Yields, values, etc. (average per acre). 



Fall 



plowed 

 (1 plat). 



Spring 

 plowed 

 (2 plats). 



Disked 

 (1 plat). 



Summer 



tilled 

 (1 plat). 



Small 



grain 



(3 plats). 



Corn 

 (1 plat). 



Yields of grain: 



1910 bushels . . 



1913 do.... 



1914 do.... 



0.6 

 3.3 

 46.1 

 14.8 

 22.0 



0.5 



5.2 



30.9 



15.0 



29.1 



0.4 

 4.2 

 50.8 

 28.6 

 53.5 



5.2 

 12.7 

 54.4 

 21.9 

 49.7 



0.5 

 4.6 

 35.9 

 14.9 

 28.7 



0.4 

 4.2 

 50.8 

 28.6 

 53.5 





17.4 



16.1 



27.5 



28.8 



16.5 



27.5 







Crop value, cost of production, etc. : 



$7.13 

 6.46 



$6.60 

 5.99 



$11.28 

 4.65 



$11.81 

 11.40 





Cost 













Profit 



.67 



.61 



6.63 



.41 











DICKINSON FIELD STATION. 



The results of six years are available from Dickinson, N. Dak. 

 The crop of 1912 was destroyed by hail before maturity, and as failure 

 from this cause could not be overcome by cultural methods it is 

 not included in determining the average. Five of the years studied 

 produced good crops of barley. In the remaining year the average 

 yield was small, but the variation between the results from different 

 methods of preparation was wide. 



The results attendant upon the fall and spring plowing of barley 

 stubble and of growing barley on either spring-plowed oat stubble or 

 barley stubble have been largely dependent upon the season. The 

 seasonal differences have equalized each other until, when the re- 

 sults of the five years are averaged, little choice is to be made between 

 them. Summer tillage increased the crop an average of about 7 

 bushels, bringing it up to 32.5 bushels per acre. Disked corn ground, 

 however, brought the average yield up to 37.4 bushels per acre and 

 gave a higher yield than summer tillage five years out of six. 



