372 BOARD OF AGKICULTURE. [Pub. Doc. 



and the plots receiving the laro-er amount of potash receive 

 acid pliosphate at the rate of about 200 pounds per acre. 

 The fertilizer applied where the lesser amount of potash 

 is used is substantially the same in its composition as 

 average corn fertilizers ; while the other, as will have been 

 noted, contains far less phosphoric acid and much more 

 potash. 



The kind of potash salt to be selected for clover is a mat- 

 ter of much importance, and experimental results at Amherst 



Clover on Sulfate of Potash makes a Fine Growth. 



have indicated again and again that the sulfate is likely to 

 prove decidedly superior to muriate or to kainit. The cuts 

 presented herewith illustrate the difference in the growth of 

 clovers on the two salts in a striking manner. These two 

 plots were side by side, and both had been manured with 

 equal quantities of fine-ground bone and potash for some 

 eight or ten years. The growth on the sulfate of potash, it 

 will at once be seen, is most decidedly superior to the 

 growth on the muriate. The persistent use of the latter, as 

 indicated by the investigations of Dr. Goessmann, appears 



