OATS IIST THE GREAT PLAINS AREA. 



27 



difference is to be observed between the results following the use of 

 peas and of rye for this purpose. 



Table XIII. 



Yields and cost of production of oats by different methods at the North 

 Platte Field Station, 1907 to 1914, inclusive. 



Treatment and previous crop. 



Number 

 of plats 

 averaged. 



1907 



1908 



1909 



1910 



1911 



1912 



1913 



1914 



Average. 



Fall plowed: 



Wheat 



4 

 1 

 1 



30.9 

 36.0 

 23.1 



61.0 



68.5 

 49.1 



24.4 

 24.1 

 20.0 



7.3 

 11.9 

 6.6 





 

 





 

 









 









 







9.7 

 10.6 



14.7 





 

 





 

 

 





 









 







7.9 

 14.7 

 10.0 



17.7 





20.7 





15.4 









6 



30.5 



60.2 



23.6 



7.9 



10.7 



9.4 



17.8 







Spring plowed: 



Wheat 



2 

 1 

 2 

 1 



34.5 

 30.0 

 34.6 

 30.0 



47.7 

 34.4 

 54.3 

 45.0 



32.8 

 31.3 

 31.3 



28.8 



12.5 

 11.3 

 12.2 

 8.1 



18.6 

 18.7 

 14.4 

 12.5 



9.1 

 5.0 

 9.7 

 7.8 



19.4 





16.3 





19.6 





16.5 









6 



33.0 



47.2 



31.4 



11.5 



16.2 



8.4 



18.5 







Sod breaking: 



Alfalfa 



1 



1 



24.0 

 22.2 



36.8 

 40.0 



14.4 

 16.6 



2.5 



4.7 



12.5 

 7.2 



7.2 

 5.6 



12.2 





12.0 









2 



23.1 



38.4 



15.5 



3.6 



9-. 9 



6.4 



12.1 









1 



40.6 



53.4 



22.5 



11.9 



6.6 



7.8 



17.9 







Green manured: 



Rye 



2 

 2 



30.5 

 28.5 



73.8 

 75.8 



032.5 

 34.8 



16.4 

 14.6 



10.3 

 13.8 



10.0 

 9.7 



21.7 





22.2 









4 



29.5 



74.8 



34.0 



15.5 



12.0 



9.9 



22.0 









4 



34.3 



87.1 



37.3 



26.2 



19.6 



14.9 



27.4 











31.4 



61.8 



28.4 



13.1 



13.7 



9.8 



19.8 









Summary of Yields and Digest of Cost. 





Tillage treatment. 



Previous crop. 



Yields, values, etc. 

 (average per acre). 



FaU 

 plowed 

 (6 plats). 



Spring 

 plowed 

 (6 plats). 



Disked 

 (lplat). 



Creen 

 manured 

 (4 plats). 



Summer 



tilled 

 (4 plats). 



Sod 

 (2 plats). 



Corn 



(3 plats). 



Small 



grain 



(9 plats). 



Sor- 

 ghum 

 (1 plat). 



Yields of grain: 



1907... bushels.. 



1908 ..do 



1909 ..do.... 

 1910 do.... 



1911 ...do.... 



1912 ..do.... 



1913 ..do.... 

 1914 do.... 



30.5 

 60.2 

 23.6 



7.9 





 10.7 







9.4 



33.0 



47.2 

 31.4 

 11.5 





 16.2 







8.4 



40.6 

 53.4 

 22.5 

 11.9 







6.6 







7.S 



29.5 

 74.8 

 34.0 

 15.5 





 12.0 







9.9 



34.3 

 87.1 

 37.3 

 26.2 





 19.6 





 14.9 



23.1 

 3S.4 

 15.5 



3.6 







9.9 







6.4 



36.6 

 54.0 

 28.3 

 12.1 





 11.8 







9.1 



31.3 

 54.6 

 26.5 



9.3 





 13.3 







8.8 



30.0 

 45.0 



28.8 



8.1 





 12.5 







7.8 



Average 



17.8 



18.5 



17.9 



22.0 



27.4 



12.1 



19.0 



18.0 



16.5 



Crop value, cost of 

 production, etc.: 



$5.34 

 6.31 



$5.55 



5.84 



$5. 37 

 4.50 



$6.60 

 14.36 



$8.22 

 11.25 





Cost 























- .97 



- .29 



.87 



-7.76 



-3.03 















a Only 1 plat in 1909. 



The heaviest yields have been those following summer tillage, 

 exceeded only by disked corn ground in 1908. But when the cost of 



