72 



The Bulletin 



TABLE Yll.— Continued. 

 EFFECT OF VARYING QUANTITIES OF PHOSPHORIC ACID. 



EFFECT OF VARYING QUANTITIES OF POTASH. 



EFFECT OF VARYING QUANTITIES OF FERTILIZER. 



age increased yields of com and stover in tlie two fields fi-om the appli- 

 cations of a mixture of nitrogen and potash, the average for the eight 

 years in the two fields being 1.1 bushels per acre of corn and 111 pounds 

 of stover, which increase on an average was not sufficient to pay for the 



