1896.] PUBLIC! DOCUMENT — No. 33. 15 



5. The phosphoric acid has not much affected cither the 

 first or the second cutting. 



J would again recommend, for mowings containing mixed 

 grasses and clover, as folloivs per acre: — 



Pounds. 



Nitrate of soda, 150 



Tankage of dry fish, 100 



Plain superphosphate, 100 



Ground South Carolina rock phosphate, .... 100 



Muriate of potash, 150 



Mix just before use and spread evenly in early spring. 



Corn. 



The soil tests with corn this year were all upon land which 

 has been several years under similar manurial treatment. 

 On Mr. Frank Wheeler's farm in Concord the work was 

 begun in 1890, and his crops in the order of succession 

 have been corn, corn, potatoes, grass and clover, grass and 

 clover, and corn (1895). 



On Mr. Wheeler's farm this year the average yield of the 

 five nothing plats which have received neither manure nor 

 fertilizer since 1889 was: stover, 3,956 pounds; grain, 40.6 

 bushels per acre. With muriate of potash alone, at the rate 

 of 160 pounds per acre, the yield was : stover, 2,840 pounds ; 

 grain, 59.8 bushels. The average increase on four plats 

 where potash was used, which is apparently due to this fer- 

 tilizer, is: stover, 1,257 pounds; grain, 21.6 bushels. The 

 average gain due to the use of nitrate of soda is 3.4 bushels 

 of grain, that due to potash (dissolved bone-black) is 2 

 bushels. 4ST 



On Mr. West's farm in Hadley the work was begun in 1890, 

 and the crops have been corn, corn, oats, grass and clover, 

 grass and clover, and this year corn. The average yield of the 

 nothing plats per acre this year was : stover, 3,584 pounds ; 

 grain, 50.7 bushels. The increase apparently due to the 

 application of potash alone was : stover, 2,900 pounds ; grain, 

 27.4 bushels. The average increase on all plats where pot- 

 ash was used, apparently due to this element, was : stover, 

 3,200 pounds; grain, 22.8 bushels. Similar averages for 



