1914.] 



PUBLIC DOCUMENT — No. 31. 



33 a 



tion for alfalfa, raspberries, blackberries and rhubarb. The 

 rates of yield per acre for these crops on the two potash salts 

 under comparison during 1913 were as follows: — 



Sulfate 

 of Potash. 



Rhubarb (pounds), . 

 Blackberries (pounds), 

 Raspberries (pounds). 

 Alfalfa (tons). 



24,174 

 8,263 

 2,6S3 



4.2 



Muriate of potash, on the other hand, gives much larger 

 yields of asparagus than the sulfate, both being used with equal 

 quantities of bone meal. The rates of yield per acre are as fol- 

 lows : — 



The combination of low-grade sulfate of potash with bone 

 meal continues to give larger yields of apples than muriate in 

 such quantities as to furnish equal potash in the same combina- 

 tion. The yield of apples under the different fertilizer treat- 

 ments in the season of 1913, and the total' yields to date, are 

 shown in the following table : — 



Yield of Apples (Pounds). 



As in previous years the three Gravenstein trees in the sulfate 

 of potash plot gave a smaller yield in 1913 than the three 

 Gravenstein trees in the muriate of potash plot, a result perhaps 



