CEEEAL EXPEEIMEN"TS ON THE CHEYENNE EXPEEIMENT FARM. 39 



to the acre seems to be the best rate to sow. Early sowing, during 

 the first half of September, has given the highest average yields. 



Spring wheats have yielded less than winter wheats. Durmn 

 wheats have yielded more than spring common wheats. The Belo- 

 turka and Kubanka are the highest yielding durmn varieties. Among 

 the spring common wheats, varieties of the Preston group have 

 outyielded Fife and Bluestem wheats. 



Experiments on the rate of seeding durum wheat are not con- 

 clusive. So far, 2 pecks of the Arnautka variety have given the 

 highest average yields. Sowing early, about the middle of April, 

 has given the highest average yields for spring common wheat. 



In experiments with oats the early varieties, Kherson and Sixty- 

 Day, have given the highest average yields in two of the three 

 years. In 1915, a cool, wet year, midseason varieties were better. 

 The Swedish Select has given the highest average yield in the 

 3-year period. 



Kherson oats sown at the 6-peck rate yielded better than when 

 sown at lower rates. Early seeding, about the middle of April, 

 has given the best results. 



Experiments with spring barley show that the White Smyrna and 

 Hannchen, both 2-rowed bearded hulled varieties, have given the 

 highest average yields. 



The Svanhals barley sown at the rate of 2 pecks and 3 pecks per 

 acre has yielded more than when sown at higher rates. The same 

 variety has given the best yields when sown rather early, from the 

 middle to the latter part of April. ^ 



Compared with wheat, the yields of spring oats and barley have 

 been rather low. Winter oats and winter barley have been failures. 



Varietal experiments with flax show Montana Common and Select 

 Russian to be tlie best varieties. Sowing at the rate of 15 pounds 

 per acre has given the highest average yield, and sowing about the 

 first of June has proved better than earlier seedings. 



Neither winter nor spring emmer has proved of value. Foxtail 

 and proso millets have given only low yields. Buckwheat does not 

 appear promising. 



Grain sorghums and corn are promising forage crops for roughage 

 or silage, but apparently have little or no value as grain crops. 



The following varieties of the principal grain crops apparently arc 

 best for this district: 



Winter wheat. — Ghirka and Kharkof or Turkey. 

 Spring wheat. — Kubanka, Erivan, Marquia. 

 Sprinj^ oatH. — KfierHon, Sixty-Day, Swodiwh Select. 

 Spring? harloy. -Whito Smyrna, llannc:lu;n. 

 Flax. — Montana Common, Select Rusaian. 



