CEREALS OISI' THE BELLE FOUECHE EXPEEIMENT FAEM. 



61 



Table XLIV. — Comparison of the yields of two varieties of winter rye and 

 of Kharkof winter wheat on irrigated land on the Belle Fourche Experiment 

 Farm, 1915 to 1918, inclusive. 



[Yields of wheat computed at 60 pounds per bushel, rye at 56 pounds jjer- bushel. ] 



Crop and variety. 



C.LNo. 



Yields per acre (bushels). 



1915 



1916 



1917 



1918 



Average. 



Eye: 



137 

 175 



1583 



44.6 

 a 38. 8 



66.3 



10.8 

 11.7 



11.3 



21.3 

 25.4 



29.5 



17.5 

 14.8 



23.4 



23.6 



N. Dak. No. 959 



22.7 



"Winter wheat: 



Kharkof ... 



32.6 







a One plat only. 



BUCKWHEAT. 



Buckwheat was grown only in 1916 and 1917 on irrigated land. 

 In 1916 a plat of about 0.15 acre was sown to buckwheat on May 31 

 at the rate of 6 pecks per acre. The seed was of the Japanese type 

 obtained locally. The plants were in full bloom during the hottest 

 weather and many of the flowers were blasted. Although consider- 

 able plant growth was made, the plat yielded at the rate of only 21.1 

 bushels per acre. In 1917 a plat containing about 0.9 acre was sown 

 to buckwheat on June 16. The land was sloping and the buckwheat 

 was injured by the soil washing at the first irrigation. The land also 

 contained a considerable growth of volunteer barley, alfalfa, and 

 weeds, which the buckwheat failed to check. The yield was 12.7 

 bushels per acre. Buckwheat is not as productive as other grain crops 

 at Newell. 



PROSO. 



Proso was grown only in 1918 and 1919 on irrigated land. It is 

 not well suited to irrigated conditions, and many other late sown 

 crops doubtless are more profitable. The yields were not large dur- 

 ing either season, and in 1919 the crop was damaged considerably by 

 birds. Four varieties of proso were grown under irrigation, the yields 

 of which are shown in Table XLV. 



Table XLV. 



-Yields of four varieties of proso gi-own on irrigated land on the 

 Belle Fourche Experiment Farm in 1918 and 1919. 



Variety. 



White Ural .... 



Hansen 



Red Russian... 

 Black Voronezh 



C.I. 



No. 



4 

 179 

 61 



27 



Yields per acre (bushels). 



1918 



21.4 

 15. 5 

 27.1 

 25.9 



1919 a Average. 



5.9 

 5.7 

 16.5 

 11.6 



13.7 

 10.6 

 21.8 

 18.8 



•■ Damaged bj' birds in 1919. 



J 



