31 



tons. If you cannot use a car-load yourself, 7et yourneighbors ^^^^ f^^ 



r Plants 



to join with you. From |2.oo to $4.00 per ton can otten 

 be saved In this way. 



In buying superphosphate always consider the percentage 

 of available phosphoric acid. You should not pay more than 

 7 cents per pound for the phosphoric acid. That is, if the 

 superphosphate analyzes 14 per cent, of available phosphoric 

 acid, a ton would contain 280 pounds, and should not cost 

 more than 1 19.60 per ton. 



The various brands of fertilizers are composed, for" the 

 most part, of substances such as lime, plaster, fillers, 

 superphosphate, etc., which can be manufactured for much 

 less than the price charged for these substances in so-called 

 " complete fertilizers." 



Supplement. 



Since the foregoing pamphlet was written, there have 

 been so many inquiries in regard to fertilizers for special 

 crops, and the best methods of applying them, that this 

 supplement is added to furnish information of this character. 

 P . There seems to be a widespread impression 



xperimen s ^^^^ ^ fertilizer for potatoes should contain 

 with Potatoes, ^.y. . ^ j-rr . ^ r^^.^^ 



Nitrogen in two or more ditterent rorms, 



and also that potash is more important and effective than 

 Nitrogen. In order to test these points in actual field 

 culture, the writer made the following experiments in 1895, 

 with the results indicated : 



Experiment with Fertilizers on Potatoes. 



Amount of fertilizers used per acre. Yield per acre. 



Plot No. o. No fertilizer i 5 5 bushels. 



i 200 lbs. Nitrate of Soda | 



Plot No. I. •} 100 lbs. muriate of potash - 245 bushels. 



/ 300 lbs. superphosphate ) 



( 400 lbs. cotton seed meal \ 



Plot No. 2. J 100 lbs. muriate of potash V 210 bushels. 



( 300 lbs. superphosphate ) 



(' 100 lbs. Nitrate of Soda ~) 



Plot No X \ ^°° ""'• ''°"°" '^^'^ ""^^^ !• 230 bushels. 



' ■'■ I 100 lbs. muriate of potash 



I 300 lbs. superphosphate j 



Plot No 4 i '°° ^^'- """"^'^ °^ P°'''^ \ 170 bushels. 



"^ ( 300 lbs. superphosphate \ 



