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l^xpERiMENT Conducted by J. D. Veal^ Three Miles North 

 OF Louisville^ Barbour County. 



Gray, sandy soil, icitli stiffer gray subsoil. 



This upland field had been cleared of its growth of oak 

 and hickory and longleaf pine about thirty years before. 

 For the two years preceding this experiment corn was 

 grown on this land, but whether cowpeas were grown be- 

 tween the corn rows was not stated. 



The stand on all plots was good. A complete fertilizer 

 afforded the largest increase in yield, 474 pounds of seed 

 cotton per acre, a net profit of |G.94 per acre. The com- 

 plete fertilizer with 200 pounds of kaiuit was a little more 

 profitable than the one containing 100 pounds of kainit. 

 This is a case in which the increased yield from kainit was 

 hot due to its influence on rust, for Mr. Veal reports that 

 there was no rust on any plot. See table page 66. 



The combination of acid phosphate and cotton seed meal 

 \vas highly profitable, but less so than the complete fertil- 

 izers. 



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



To unfertiized plot 48 lbs. 



To acid phosphate plot 253 lbs. 



To kainit plot 301 lbs. 



To acid phosphate and kainit plot 242 lbs. 



Average increase with cotton seed meal 211 lbs. 



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



To unfertilized plot 120 lbs. 



To cotton seed meal plot 325 lbs. 



To kainit plot 268 lbs. 



Ttj cotton seed meal and kainit plot 209 lbs. 



Average increase with acid phosphate 230 lbs. 



