24 



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



To unfertilized plot 248 lbs. 



To acid phosphate plot 000 Its. 



To kainit plot 104 lbs. 



To acid phosphate and kainit plot 52 lbs. 



Average increase with cotton seed meal 101 lbs. 



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



To unfertilized plot 168 lbs. 



To cotton seed meal plot — 80 lbs. 



To kainit plot 80 lbs. 



To CO ton seed meal and kainit plot 28 lbs. 



Average increase witli acid phosphate 49. lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot —12 lbs. 



To cotton seed meal plot — 156 lbs. 



To acid phosphate plot — 100 lbs. 



To cotton seed meal and acid phosphate plot — 48 lbs. 



Average increase with kainit — 79 lbs. 



Increase from use of cot on seed meal 52 lbs. 



Increase from use of nitrate of soda 264 lbs. 



Nitrate better by 212 lbs. 



LAMAR COUNTY, 12 MILES SOUTH OF SULLIGENT. 



E. Ward. 

 Light sandy loam, clay subsoil. 



This land has been cultivated for 40 years. The preceding 

 crop was cotton. There was no damage from rust or from the 

 cotton caterpllar. The stand was good. 



This soil was chiefly in need of nitrogen. A mixture of cot- 

 ton seed meal and acid phosphate gave the largest profit, 

 $12.09 per acre, or a profit of 258 per cent on the investment in 

 fertilizers. 



The average increase in seed cotton per acre was, with cotton 

 seed meal, 223 pounds, and with acid phosphate 137 pounds. 

 Kainit resulted on an average in the loss of 53 pounds of seed 

 cotton per acre. 



Cotton seed meal was slightly more effective than an applica- 

 tion of nitrate of soda made in July. 



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



To unfertilized plot 384 lbs. 



To acid phosphate plot 204 lbs. 



To kainit plot 156 lbs. 



To acid phosphate and kainit plot 196 lbs. 



Average increase with cotton seed meal 223 lbs. 



