73 



Increase of seed cotton per acre when acid phoisphate- 

 was added: 



To unfertilized plot 104 lbs. 



To cotto-nseed meal plot 192 " 



To kainit plot 144 " 



To cottonseed meal and kainit plot 112 " 



Areratje increase >vi(h cottonseed meal 138 " 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 200 lbs. 



To cottonseed meal plot 220 " 



To acid phosphate plot ^ 240 " 



To cottoUiSeed meal and acid phos. plot. . . .240 



Average increase with kainit 225 *' 



All three of the usual fertilizer ingredients were needed^ 

 Applied singly there was a financial loss with all except 

 kainit. The mixtures containing kainit were more effective 

 than any other fertilizer. A complete fertilizer was most 

 profitable, and the profit was greater with 200 pounds per 

 acre of kainit than with 100 pounds. 



Experiment Made by J. R. McLendox, Naftel, Montgomeky 



County. 



Light, sandy soil ; red clay subsoil. 



The land had been cleared about forty years, and had 

 been fertilized but twice during that time, once with com- 

 mercial fertilizers and once with a crop of cowpea vines. 

 The original growth was pine, red oak and hickory. The 

 preceding crop was cowpeas. The season was extremely 

 dry. The stand was defective. 



