16 



DEY-LAND GRAINS FOR NORTH AND SOUTH DAKOTA, 



Table IX.- 



Yield per acre of oats grown at the experiment farm , Dickinson, N. Dak., 

 from 1907 to 1909, inclusive. 



n From First Annual Report of the Dickinson Sub-Experiment Station, 1908. 

 '> Average of three elieck plats. 

 " Average of four check plats. 



BELLEFOURCHE. 



The best yieldino; oat varieties at Bellefourche are the Kherson 

 and the Sixty-Day. They seem to be practically identical in both 

 yield and appearance. The only difference noted is that the Kherson 

 is one or two days later in maturing than the Sixty-Day and is 

 slightly taller. The average yields are 36.4 and 36.3 bushels per 

 acre, respectively. The Sw^edish Select ranks third, with a yield of 

 33.3 bushels per acre. Other varieties range in yield from 18.5 to 

 30 bushels per acre. 



HIGHMORE. 



Only Sixty-Day and Swedish Select oats have been grown at High- 

 more for the full period of seven years. In 1906 the former was 

 grown on sorghum ground, and therefore was not comparable with the 

 other varieties. A plat of the Swedish Select on sorghum ground 

 by the side of the wSixty-Day yielded 42.8 bushels per acre, or 22 

 bushels less than the plat of the same variety in the regular variety 

 test. The average of the Swedish Select for seven years on ground 

 comparable with the Sixty-Day is 41.5 bushels. The average yield 

 of the latter for the same period is 40.2 bushels. A four-year average 

 from 1906 to 1909, inclusive, of all varieties (Table VIII) shows the 

 Kherson in the lead, with a yield of 41.5 bushels, and the Swedish 

 Select a close second, with a yield of 41.3 bushels. Had the Sixty- 

 Day been grown on comparable ground in 1906 it would undoubtedly 

 have equaled either of these in yield. 



[Cir. 59] 



