294 DRY FARMING 



trial at 12 of the 14 stations. However, on account of 

 its high cost due to extra labor and alternate year crop- 

 ping, it has not been the most profitable practice. (Bui. 

 214, —p. 43-11). 



Winter Wheat: — Summer tillage has given the high- 

 est average yields of any method under trial at 11 of the 

 13 stations. However, on account of its high cost due 

 to extra labor and alternate year cropping it has not 

 netted the largest returns except at Huntley (Montana). 

 (Bui. 595, —p. 35-10). 



Oats: — Oats following summer tillage produced the 

 highest average yields at all stations except Hettinger 

 (N.D.) where the yield was exceeded only by that on 

 disked corn ground. While the expense of the method 

 has prevented its being the most profitable the degree 

 of insurance which it affords against failure of the feed 

 crop might justify its practice in oat production in at 

 least some sections of the Great Plains. (Bui. 218 — p. 

 42-9). 



Barley: — The highest average yields at 11 of the 14 

 stations have been by summer tillage. On the average 

 it increased the yields nearly one-half over those pro- 

 duced on land cropped in the preceding year. On ac- 

 count of its cost, it has not been the most profitable meth- 

 od of production. (Bui. 222— p. 32-3). 



Corn: — Summer tillage has slightly increased the 

 grain yields at all except three stations and has materially 

 increased fodder yields at the three southern stations. 

 The increased yields, however, have not been sufficient to 

 make it the most profitable method at any station except 

 Scottsbluff (Nebraska). (Bui. 219— p. 31-3). 



241. Corn or Sorghums vs. the Fallow. — 



Spring Wheat :— Disked com ground has given con- 



