34 a 



EXPERIMENT STATION, 



[Jan. 



due to the proximity of the trees in the sulfate of potash plot 

 to a neighboring forest. 



Some fire blight showed itself in this orchard during the past 

 season. The several plots in severity of blight injury ranked 

 in the following order: 4, 5, 1, 2, 3. The Greening variety 

 showed more blight than any other in all the plots except No. 5, 

 in which the Gravenstein showed rather more than the Greening. 



In the south soil test, where each plot has been continuously 

 fertilized in the same M'ay for twenty-five years, the crop in 

 1913 being corn, muriate of potash showed itself to be much 

 superior to either nitrate of soda or acid phosphate in its effect 

 upon that crop. The average rates of yield per acre on the 

 nothing plots were : — 



Hard Corn 

 (Bushels). 



Soft Corn 

 (Bushels). 



Stover 

 (Pounds). 



Nothing plots, 



7.9 



1,870 



The rates of yield on the different fertilizer combinations 

 were as follows : — 



It will be noted that only where potash is used is there any 

 considerable increase in the crop. 



In the north corn acre the fertilizer combination richer in 

 potash gives a rather higher yield of hay than the combination 

 relatively low in potash and high in phosphoric acid, which is 

 similar in composition to the average of the corn fertilizers 

 offered in our markets. This is the twenty-third year of this 

 experiment. 



