YIELD OF SPRING WHEAT 



15 



Table 3 — Annual and average yields of spring wheat by each of three methods when 

 the soil was wet to different depths in the spring at 15 field stations in the Great 

 Plains during the period 1907-38 — Continued 



WTLLISTON, N. DAK. 



Year 



Plot A 



PlotB 



Plots C and D 





lfoot 



2 feet 



3 feet 



lfoot 



2 feet 



3 feet 



lfoot 



2 feet 



3 feet 



1910 



Bushels 

 1.7 

 2.7 



Bushels 



Bushels 



Bushels 

 1.3 

 2.3 



Bushels 



Bushels 



Bushels 



Bushels 



Bushels 

 4.2 



1911 













7.6 



1912 



25.2 





33.8 

 11.7 

 22.5 

 14.5 

 24.3 







""§9."7 

 16.5 

 31.2 

 27.7 

 28.0 



1913 





16.8 











1914 





23.8 

 19.2 









1915 















1916 „ 





23.2 











Average 



2.2 



22.7 



20.0 



1.8 



21.4 







7.6 



24,6 



Number of years .. 



2 



3 



2 



2 



5 











1 



6 



HUNTLEY, MONT. 



1912 _. 



1913 :: 



11.0 



~"l6.~6" 





7.8 



"""Ii."8" 





7.8 





22.7 



1915 



1916 



"~24.T 



5.8 







""25." 3" 



7.8 



20.2 







""l3.~5~ 



19.5 



36.5 



1918 



1.5 







5.7 





""l8."8 



1920 







"""§." 2" 



6 

 """ "!."§" 



"~7."6" 







.7 



"~~6.~8 

 17.7 



1921 



3.0 











1923 



""6.3" 



20.7 







17.8 

 4.7 







19.3 

 10.3 





1924 





26.7 





20.3 





~"~2L8 



10.0 



1925 





7.0 







24.2 





5.7 







1926 















""I.~5~ 

 20.3 



1927 





20.0 



4.8 

 4.2 









1928 



3.8 











""26" 5 

 9.7 



1929 



2.8 













1930 





 







 







— -— 



1931 











""6""" 





1933 



— .— 







— ----- 







1.2 

 .2 

 1.5 



2.7 







2.7 

 .5 

 4.5 

 2.5 

 .2 





1934.... 





 1.0 













1935 













1936 





 2.0 











1937 



1938 



""30." 3" 





26 5 





"~5.~5" 





Average 



4.7 



10.3 



17.5 



3.5 



11.4 



13.0 



4.4 



8.1 







18.4 



Number of years 



12 



12 



2 



13 



11 



2 



3 



13 



10 



DICKINSON, N. DAK. 



1907 







37.0 







31.6 

 17.7 







28.3 

 33.8 

 35.7 

 26.8 

 23.3 

 27.3 

 38.7 

 22.8 

 12.3 



1908 





24.3 

 26.8 











1909 









25.2 







1910 





17.4 





18.2 



1.4 



20.5 



28.7 







1911 





5.7 











1913 





13.5 











1915 





25.8 











1916 





16.7 

 5.5 



"l2."8" 

 2.6 



21.0 

 2.7 







1917 













1920 



15.6 

 3.9 









"~21.T 



1921 











""5.Y 





1922 



23.5 

 10.3 







19.7 

 12.3 

 15.3 



7.0 





""27.~6 

 14.8 

 27.0 

 20.0 



1923 















1924 





18.0 











1925 





4.5 











1926 

















"~Ii."6" 



22.3 



1927 



11.8 





13.0 









1928 





12.5 



15.0 







"~"29."2 

 20.0 

 24.2 

 14.3 



1930 





7.3 



15.7 

 1.8 





5.0 

 13.7 







1932 















1933 









.8 







Averaee 



6.5 



14.3 



17.2 



7.6 



12.5 



15.9 



5.7 



18.1 







25. 1 



Number of years 



3 



11 



7 



4 



5 



12 1 



3 



17 



