222 EXPERIMENT STATION. [Jan. 



ditions. The yield may also have been favored to some extent 

 by the growth of medium green soy beans on the same plots the 

 preceding year. 



1907. — Varieties: Learning and Pride of the North. 

 Fertilizers used per acre : — 

 200 pounds high-grade sulfate of potash, equivalent to about 100 



pounds potash. 

 500 pounds phosphatic slag, equivalent to about 75 pounds available 



phosphoric acid. 

 200 pounds nitrate of soda, equivalent to about 30 pounds nitrogen. 

 300 pounds di'y ground fish, equivalent to 24 pounds organic nitrogen. 



1908. — Varieties: Sanford, Longfellow, Rustler, Early Mastodon, 



Klondike, Red Cob Silage and White Cap Yellow. 

 Fertilizers used per acre : — 

 300 pounds high-grade sulfate of potash, equivalent to about 150 



pounds potash. 

 500 pounds acid phosphate, equivalent to about 75 pounds available 



phosphoric acid. 

 200 pounds nitrate of soda, equivalent to about 30 pounds nitrogen. 

 500 pounds di'y ground fish, equivalent to about 40 pounds organic 

 nitrogen. 



1909. — Varieties: TwitchelVs, Rustler, Brewer's, Early Mastodon, White 



Cap Yellow, Wing's Improved White Cap. 

 Fertilizers used per acre : — 

 300 pounds high-grade sulfate of potash, equivalent to about 150 



pounds potash. 

 700 pounds acid phosphate, equivalent to about 105 joounds available 



phosphoric acid. 

 200 pounds nitrate of soda, equivalent to about 30 jiounds nitrogen. 

 500 pounds dry ground fish, equivalent to about 40 pounds organic 

 nitrogen. 



1910. — Varieties : Rustler, Brewer's, Longfellow, Eureka. 

 Fertilizers used per acre : — 

 300 pounds high-grade sulfate of potash, equivalent to about 150 



pounds potash. 

 700 pounds acid phosphate, equivalent to about 105 pounds available 



phosphoric acid. 

 200 pounds nitrate of soda, equivalent to about 30 pounds nitrogen. 

 500 pounds di'y ground fish, equivalent to about 40 pounds organic 

 nitrogen. 



