10 



There was no damage done by the cotton caterpillars. 



The complete fertilizers were all highly profitable, as was 

 also a mixture of acid phosphate and kainit. The complete fer- 

 tilizers with cotton seed meal gave larger profits than did the 

 one with nitrate of soda. The average estimated increase of 

 seed cotton per acre was 197 pounds for cotton seed meal ; 378 

 pounds for acid phosphate ; and 290 pounds for kainit. 



Nitrate of soda applied June 16, was less effective than was 

 cotton seed meal. 



Increase of seed cotton per acre when cotton seed meal was added: 



To unfertilized plot 128 lbs. 



To acid phosphate plot 360 lbs. 



To kainit plot 216 lbs. 



To acid phosphate and kainit plot 82 lbs. 



Average increase with cotton seed meal . .^ 197 lbs. 



Increase of seed cotton per acre when acid phosphate was added: 



To unfertilized plot 96 lbs. 



To cotton seed meal plot 328 lbs. 



To kainit plot 610 lbs. 



To cotton seed meal and kainit plot 476 lbs. 



Average increase with acid phosphate 378 lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 80 lbs. 



To cotton seed meal plot 168 lbs. 



To acid phosphate plot 594 lbs. 



To cotton seed meal and acid phosphate plot 316 lbs. 



Average increase with kainit 290 lbs. 



Increase from use of different quantities of kainit: 



From use of 200 pounds kainit 316 lbs. 



From use of 100 pounds kainit 190 lbs. 



