37 



average corn fertilizers ; while the other, as will have l^een noted, con- 

 tains far less phosphoric acid and much more potash. 



The kind of potash salt to be selected for clover is a matter of much 

 importance, and experimental results at Amherst have indicated again 

 and again that the sulfate is likely to prove decidedly superior to muri- 

 ate 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 onre be seen, is most 

 decidedly superior to the growth on the muriate. The persistent use 



C'LOTER ON Muriate op Potash makes a Poor Growth. 



of the latter, as indicated by the investigations of Dr GoeSsmann, 

 appears to cause the loss through leaching of a large amount of lime, 

 and it is perhaps this effect which makes it impossible for the clover 

 to thrive. The difference in the growth of clover on these two salts of 

 potash is invariably greater in relatively wet than in dry seasons. 



Conditions affecting the Gronih of Timothy and Eedtop — Whenever 

 the soil is abundantly supplied with manure or fertilizers which supply 

 nitrogen in relatively large amounts, timothy will be found relatively 

 abundant in the mowing, imless the soil be sour. If it be sour, the red- 

 top will pi-edominate, while, as already stated, there will be little or no 

 clover. If, then, it be desired to produce first-class timothy hay lor sale, 

 the farmer should make sure that his soil is not sour ; and if found to 

 be so, he must apply lime, as already advised for clover. On soils 

 which are not sour, heavy applications of barnyard manure bring the 



