37 



RESULTS OF THE ADDITION OF POTASH 



Corn, bush. per acre, 

 Stover, pounds, " " 



5.6 



567.5 



Value of the net average increment, 

 Financial Result, 



$3.37 



.17 profit. 



RESULTS OF THE ADDITION TO NOTHING OF 



Corn, bush, per acre, 

 Stover, pounds, " " 



Value of increment due to fertilizer. 



Financial result, 



Value of increment due to manure. 



Financial result, 



Value of increment due to lime, 



Financial result, 



Value of increment due to plaster, 



Financial result. 



$4.12 

 7.88 loss 

 $5.72 

 19.28 loss 

 $ .40 



.56 loss 

 $ .33 



.39 loss 



These comparisons make it evident that potash is the only impor- 

 tant ingredient of the fertilizer which did any appreciable good ; but 

 tiie increase caused by this is exceedingly small. A much smaller 

 application must have proved equally eflScacious. 



The use of the complete fertilizer was very unprofitable, and 

 resulted in a considerably smaller crop than that i)roduced on barn- 

 yard manure. Neither lime nor plaster did any appreciable good on 

 this soil. 



