CORN. 33 



By a. p. Arnold, Vineland, Cumberland Co. Seventh Annual 

 Report. Soil — Very sandy loam. 



Financial results: "Potash influenced the profits in a very marked 

 manner, the increased returns from its use were sufficient to leave a 

 balance of $21.59 after fertilizer charges had been met and due credit 

 allowed for the product from the unmanured ground; $21.59 is 180 

 per cent, of $12.00, the cost of 600 lbs. of muriate of potash." 



1888. 



Results of Experiments Since 1882. The experiments on corn 

 by Mr. Thompson and Mr. Voorhees were valuable in showing the 

 positive effect of potash, and, Mr. Thompson's experiment reported 

 in 1882, indicated that while all fertilizing elements were effective, 

 the largest profit for the money invested was secured from the use 

 of potash. The calculated net profits from and the percentage re- 

 turns on the money invested per acre for the effective elements are 

 as follows: 



Per Cent. 



Cost. Net Profit. on Money 



Invested. 



Nitrogen, Phosphoric Acid, Potash $i4-35 $ 4-i9 28 



Phosphoric Acid and Potash .. . 9.00 i5-5o 172 



Phosphoric Acid , 5.25 10.15 193 



Potash 3.75 13.65 364 



"The returns on the money invested range from 28 per cent, to 

 364 per cent. Mr. Thompson has continued the use of potash upon 

 corn and has secured uniformly profitable results up to the present 

 time. His experience also shows that kainit, while it costs more per 

 pound of actual potash than muriate of potash, has been more 

 economical. 



''The experiment of Mr. Voorhees, reported in 1883, shows that 

 wherever phosphoric acid and nitrogen were used, either alone or to^ 

 gether, the increase in yield was secured at a loss; that muriate of potasf 

 alone costing $3.25 per acre, increased the yield of corn 29J bushels* 

 and the stalks by 1,000 lbs., that when potash was used in combination 

 with either nitrogen or phosphoric acid, or with both, as in complete 

 manure, the increase in yield secured was almost proportional to the in- 

 crease secured from the use of potash alone. That is to say an addition 

 of nitrogen to potash, or of both nitrogen and phosphoric acid to potash 

 reduced the percentage of profit secured from the use of potash alone 

 in direct proportion to the cost of nitrogen and phosphoric acid. 



