32 



CALHOUN COUNTY, 2^ MILES SOUTH OF JACK- 

 SONVILLE. 



T. S. Weaver. 



Sandy land with clay subsoil. 



This land has been cleared 30 years or more. The preced- 

 ing crop was cotton. There was no damage from rust. There 

 was a good stand. The most profitable application of fertilizer 

 proved to be the complete fertilizer, on plot 12, which contained 

 nitrate of soda ; this mixture afforded a profit of $9.97 per acre,, 

 or 204 per cent on the investment in fertilizers. The applica- 

 tion of fertilizers singly was not profitable. The average 

 increase of seed cotton per acre was 150 pounds from 

 cotton seed meal; 70 pounds from acid phosphate; and 36 

 pounds from kainit. 



Nitrate of soda was more effective than cotton seed meal, and. 

 100 pounds of kainit was better than 200 pounds. 



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



To unfertilized plot 64 lbs. 



To acid phosphate plot 188 lbs. 



To kainit plot 68 lbs. 



To acid phosphate and kainit plot 278 lbs. 



Average increase with cotton seed meal 150 lbs. 



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



To unfertilized plot 8 lbs. 



To cotton seed meal plot 132 lbs. 



To kainit plot ~36 lbs. 



To cotton seed meal and kainit plot 174 lbs. 



Average increase with acid phosphate 70. lbs. 



Increase of seed cotton per acre when kainit was added : 



To unfertilzed plot 34 lbs. 



To cotton seed meal plot 38 lbs. 



To acid phosphate plot 10 lbs. 



To cotton seed meal and acid phosphate plot 80 lbs. 



Average increase with kainit 36 lbs. 



Increase from use of 200 pounds kainit 80 lbs. 



Increase from use of 100 pounds kainit 118 lbs. 



Increase from use of cotton seed meal 278 lbs. 



Increase from use of nitrate of soda 428 lbs. 



Nitrate better by ""^O "'s.. 



