1911, 



PUBLIC DOCUMENT — No. 31. 



37 



Muriate of potash, 

 Sulfate of potash, 



Rate per Acre (Pounds). 



Asparagus. 



5,604 

 4,143 



Rhubarb. 



24,587 

 25,856 



Blackberries. 



2,661 

 2,821 



These figures call for but little comment, as they are in gen- 

 eral in full agreement with results previously obtained. The 

 asparagus gives a larger yield on the muriate of potash, which 

 indicates the correctness of the ordinary practice of asparagus 

 growers, who usually employ the muriate as a source of potash. 



The rhubarb gives a slightly larger yield on the sulfate, and 

 it was noticed during this year, as it has usually been in pre- 

 vious years, that the proportion of leaf to stalk is greater on the 

 sulfate than on the muriate, the figures for this year on total 

 weight of leaf being at the following rates per acre : — 



Muriate, 

 Sulfate, 



Pounds. 



18,410 

 20,560 



No explanation can at present be offered for this difference. 



The blackberries gave a larger yield on the sulfate, but the 

 difference is not great. This, however, is in accordance with 

 our observations in the case of most fruits^ strawberries alone 

 excepted, that sulfate of potash gives a better yield than mu- 

 riate. 



The difference in yield in potatoes on the two plots amounts 

 to rather over 50 bushels. Such differences have been common 

 in our experiments in earlier years, not only in this field, but 

 in others as well. The difference in character of foliage of the 

 potatoes on the two plots was strikingly evident from a period 

 very early in their appearance above ground. The foliage of 



