34 EXPERIMENT STATION. [Jan. 



The average yield for the entire period of the experiment 

 (1893-1912, inclusive) for each system of manuring is shown 

 in the following table : — 



Pounds. 



Barnyard manure, 6,149 



Bone and potash, 5,999 



Wood ashes,' 5,636 



The average yield for the entire area this year was 4,846 

 pounds, — a little better than the average yield for last year, 

 but not equal to the average yield for the entire period of the 

 experiment (1893-1912, inclusive) which is 5,959 pounds. 

 The average yield for the period 1893-1911, inclusive, was 

 6,018 pounds. 



' Owing to the difficulty of securing good wood ashes a mixture of slag and muriate of potash, 

 supplying the same amount of phosphoric acid and potash, was substituted this year. 



