50 



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



To unfertilized plot 128 lbs. 50 lbs. 



To cotton seed meal plot 64 lbs. lOG lbs.. 



To kainit plot 92 lbs. 44 Ibs^ 



To cotton seed meal and kainit plot ..,.,.. .120 lbs. 84 lbs.. 



Average increase with acid phosphate 101 lbs. 46 Ibs^ 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 15G lbs. 75 lbs.. 



To cotton seed meal plot 7G lbs. G8 lbs. 



To acid phosphate plot 120 lbs. 189 lbs.. 



To cotton seed meal and acid phosphate plot ....132 lbs. 40 lbs.. 



Average increase with kainit 121 lbs. 88 lbs,. 



Experiment Made by the Southern Industrial Institute^ 

 Camp Hill^ Tallapoosa County, in 1902. 



Gray, sandy soil, wliJi sandy stihsoiJ. 



A protracted drought made all fertilizers practically use- 

 less, the average increase from cotton seed meal being only 

 18 pounds, from phosphate 31 pounds, and from kainit IT 

 pounds. The most favorable result, on plot 7, entailed a* 

 loss on account of fertilizers of 94 cents per acre. 



Experiments Made 2V2 Miles South of Hanover^ Coosa 

 County, by J. M. Logan, in ?902. 



Dark gray sandy soil icith some rock; yellowish sahsoiK 



The original growth, removed about 40 years before, con- 

 sisted of longleaf pine, hickory and oak. Recent crops have 

 all been cotton. The largest increase, 392 pounds of seed 

 cotton per acre, was obtained from the use of a complete 

 fertilizer, affording a net profit of $5.56 per acre. Phos- 

 phate used alone or with kainit, was of little value, but^ 

 combined with both it was highly advantageous. 



