22 



BULLETIN 297, U. S. DEPARTMENT OP AGRICULTURE. 



that it can not be said that any material advance has been made. 

 More extensive trials, particularly of the earlier varieties, appear to 

 be desirable. 



WINTER WHEAT, 



VARIETAL TEST. 



Winter wheat has been grown successfully at New r ell in four of the 

 six years from 1908 to 1913. In 1911 the spring rainfall was so defi- 

 cient that the winter wheat died before making much growth, although 

 the winter survival of all varieties was good. In the fall of 1911 the 

 soil was so dry that the wheat did not germinate; hence, no crop was 

 produced in 1912. 



Winter wheat has been sown each year on land fallowed the pre- 

 vious summer. The date of seeding in each case has been that which 

 seemed to be most favorable in the particular season. The rate of 

 seeding usually has been 4 pecks to the acre. 



The annual and average yields of the varieties of winter wheat 

 grown on the Belle Fourche Experiment Farm from 1908 to 1913 

 are shown in Table XII. 



Table XII. — Annual and average yields of varieties of winter wheat on the Belle Fourche, 

 Experiment Farm, 1908 to 1913, inclusive. 



C.I. 



No. 



Variety. 



Yield per "acre (bushels). 



1908 



1909 



1910 



1911 



1912 



1913 



Aver- 

 age. 



2979 









16.7 

 19.2 

 19.2 

 19.7 

 20.3 

 22.7 

 23.6 

 17.5 

 19.4 

 17.8 

 20.3 

 15.0 

 14.2 



C 1 ) 





 

 





 

 



35.0 

 37.2 

 39.4 





1667 











2239 



DO :... 









1435 





IS. 7 

 25.3 

 25.4 

 22.5 



31.5 

 36.0 

 40.3 

 39.0 





1437 



Do 





 

 





 

 



36. 4 

 38.6 

 38.8 



19.7 



1442 





21.2 



1583 



Do 



20.7 



2208 



Do 





1561 











 

 

 





 

 

 



36.8 

 38.1 

 38.7 

 39.3 





1558 





24.1 



25.5 



41.0 

 39.0 



20.2 



1571 



Do 



20.6 



2943 



Do 





2998 



Do .. 









3055 



Do .. 



22.3 



44.5 











35.0 



17.0 









i Did not emerge in the fall. 



In the fall of 1907 the winter-wheat varieties were sown on new 

 land which had been broken the previous spring and disked during 

 the summer to keep down weeds. The seven strains grown that 

 year were all of the hard red winter or Turkey group. The varietal 

 names included Turkey, Kharkof, and Crimean. Two sowings were 

 made of each variety, one on September 15 and one on October 5. 

 The plants from both dates of seeding made a small growth before 

 winter. The winterkilling ranged from 25 to 45 per cent in the 

 various plats. The favorable spring conditions caused the plants to 

 tiller, so that at harvest time the stand was aboul normal. The 



