34 CORN. 



"In 1884 Mr. Voorhees, governed by the results secured in 1883, 

 broadcasted one ton of muriate of potash, costing $40, upon 13 acres 

 of corn ground. Careful measurements of the yield from this area, 

 compared with a portion of the field left unfertilized, showed an in- 

 crease of 30 bushels of ears per acre, which, at ruling prices for that 

 year, gave a net profit of $57.50, or 144 per cent, on the investment." 



NORTH CAROLINA, 1882. 



By C. W. Dabney, Director. Annual Report for 1882. 



"Many of the effects of kainit are general and not restricted to 

 cotton. It greatly increases, for example, the yield of corn on certain 

 cotton land when applied in connection with lime." 



OHIO, 1889. 



By B. H. Brown, Butler Co. Bulletin No. i. Soil — Stiff clay. The 



average of the unfertilized plot was 24.9 bushels. Increase due to 



potash alone was 18.3 bushels. Increase due to combined minerals, 



23.7 bushels. 



"It will be seen that in this test phosphoric acid and potash seem 



to have been most effective in increasing the crop." 



Consideration of the Results of the FariMEr's Experiments. 

 Bulletin No. 2. From the table, giving the results of the eight ex- 



)eriments made, it is to be seen that potash alone caused an increase 



>f 154 .bushels in Kicking County, and of 18.3 in Butler County. 



From the combined minerals an increase was produced in five cases. 



RHODE ISLAND, 1890. 

 By C. O. Flagg, Experiment Station, Kingston. Bulletin No. 8. 

 Average yield unnianured, 15.71 bushels. The highest increase 

 over unmanured 45.71 bushels from mixed minerals, yielding a profit 

 of $33.85 Muriate of potash alone was most profitable and yielded 

 an increase of 28.57 bushels, worth $20 70, at an outlay of $3.60 

 (more than 600 per cent, profit). 

 Conclusions: 



"i. The soil appeared to be deficient in potash, phosphoric acid 

 and nitrogen. Potash appeared to be especially lacking, next phos- 

 phoric acid, and finally nitrogen." 



WEST VIRGINIA, 1893. 

 By D. D. Johnson, Agriculturist. Bulletin No 29, page 8^. Ex- 

 periments were made at four places in this State — in Berkeley County, 

 in Upshur County, in Wood County, and in Putnam County — for 



