CEOP PRODUCTION" IN THE GREAT PLAINS AREA. 13 



its increase of yield over fall plowing has lacked one-tenth of a bushel 

 of being 10 bushels per acre. The greatest departure from this gen- 

 eral average is at Scottsbluff, where the increase has amounted to 20 

 bushels per acre. 



As values and cost of production are here figured, it is seen in Table 

 IV that oats have been produced at a profit by at least one method 

 at all stations except Garden City and Dalhart. At two stations, 

 Judith Basin and Huntley, a profit has been realized from all methods. 



Comparatively good yields, combined with low cost of production, 

 have usually made disked land, which has been chiefly corn ground, 

 show the greatest profit at all stations where a profit has been realized 

 from any method. 



At all stations where it has been tried, listing has either been more 

 profitable or has resulted in less loss than fall plowing. 



Subsoiling has yielded a profit at two stations and a loss at six. 

 It could not, however, be said that it was a profitable practice at any 

 station, as the profits from it have been less and the losses from it 

 greater than from fall plowing. It should be compared with fall 

 plowing, as it is a modification of that method. 



At all the 10 stations north of Hays, except Belle Fourche and North 

 Platte, where the losses per acre have been SO. 44 and SO. 29, respec- 

 tively, spring plowing has been productive of profitable crops. At 

 Hays the average loss from it is only SO. 56 per acre. At Amarillo 

 the loss has increased to $ 1 .3 1 . At Garden City and Dalhart there was 

 a loss, but all methods resulted in a loss at these stations. 



At Akron and all North Dakota and Montana stations, fall plowing 

 shows a profit. At Scottsbluff the nominal profits from spring 

 plowing have been converted to nominal losses by fall plowing. At 

 the other stations the losses from the two methods are about the 

 same. 



The cost of green manuring has been so high that at only two 

 stations, Judith Basin and Huntley, has it shown a profit. At 

 those stations the profits were smaller than those from any other 

 method. At all other stations it has either converted the profit of 

 other methods into a loss, or has been productive of the greatest loss. 

 In probably only two or three cases has the loss been small enough 

 to make it possible to change it to a profit by distributing a part of 

 the cost to following crops. 



Summer tillage, as here figured shows a profit at six stations and a 

 loss at eight. In two eases the profits arc nominal — i. e., they are 

 so small that changes in the average yields by extension of the record 

 might change their position. In n<> case has the profit as hero figured 

 been as great as from some other met hod. Except at Dalhart and 

 Garden City the losses at the eight stations showing a loss have 



averaged from SI. 02 lo N'i.81. Considering the fact that summer 



