CEREALS ON THE BELLE FOUECHE EXPERIMENT FARM, 



27 



Table XVII. — Yields of the better varieties of winter wheat and of durum and 

 common string wheats grown on dry land on the Belle Fourche Experi- 

 ment Farm, J 908 to 1919, inclusive. 



Group and 

 variety. 



C.I. 



No. 











Yields per acre (bushels). 







1908 



1909 



1910 



1911 



1912 



1913 



1914 



1915 



1916 



1917 



1918 



1919 



Aver- 

 age. 



Winter : 



Kharkof. . 



1442 



25.4 



40.3 



22.7 











38.6 



28.7 



63.8 



14.2 



4.7 







«10.0 



20.7 



Springdurum: 

 Kubanka . 



1516 



23.8 



22.6 



5.3 











19.1 



9.6 



54.5 



19.7 



11.8 



34.8 



8.9 



17.5 



Spring com- 































mon: 

 Power 



!'3025 



18.5 



17.3 



10.6 











16.6 



5.1 



43.4 



6.5 



10.2 



30.0 



«.3 



12.9 



a Not grown, yield from a single plat on summer fallow in experiments of the Office of Dry-Land 

 Agriculture. 

 b Power, C. I. No. 3697, grown from 1916 to 1919, inclusive. 



Winter wheat, although giving higher average yields, is somewhat 

 less certain than spring w^heat in the vicinity of Newell, owing to 

 poor germination of seed during cold fall weather, greater injury 



Fig. 8. — Plats on dry land at the Belle Fourche Experiment Farm in 1917 : 1, Kubanka 

 spring wheat ; 2, Swedish winter rye ; .5, Kharkof winter wheat. Note the differences in 

 stand and growth between the winter rye and the winter wheat due to the greater hardi- 

 ness of the rye. 



from soil blowing, and the possibility of winterkilling. In case of 

 failure of winter wheat from these causes, however, there is still an 

 opportunity to sow spring wheat or some other spring crop. 



EXPERIMENTS WITH OATS. 



Oats is perhaps the most successful feed crop of all the small 

 grains in this region. The yields of oats on the Belle Fourche Ex- 

 periment Farm, however, usually have been less in pounds per acre 

 than the yields of wheat. Oats are most profitably grown when sown 

 on corn ground early in the spring. If drought or hot winds prevent 

 the oats from filling, the crop can be cut for hay. 



