27 



WALKER COUNTY, 6 MILES EAST OF JASPER. 



D. B. Lewis. 



Light gray loam, yelloiu clay subsoil. 



This land has been in cultivation for 48 years. The preced- 

 ing crop was r3'e. There was no damage reported from rust 

 or insect injuries. The stand was uniform for each plot. The 

 average estimated increase of seed cotton per acre was 288 

 pounds for cotton seed meal ; for acid phosphate 400 pounds ; 

 and 50 pounds for kainit. 



The greatest profit was afforded by a mixture of cotton seed 

 meal and acid phosphate on Plot 5, namely, $19.13 per acre. 

 This is a profit of 409 per cent on the investment in fertilizers. 



All of the complete fertilizers were highly profitable. Of the 

 single applications acid phosphate was the most profitable. The 

 complete fertilizers with cotton seed meal gave higher profits 

 than when nitrate of soda was used. 



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



To unfertilized plot 180 lbs. 



To acid phosphate plot 396 lbs. 



To kainit plot • 294 lbs. 



To acid phosphate and kainit plot 278 lbs. 



Average increase with cotton seed meal 288 lbs. 



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



To unfertilized plot 348 lbs. 



To co'ton seed meal plot ^64 lbs. 



To kainit plot 370 lbs. 



To cotton seed meal and kainit plot 354 lbs. 



Average increase with acid phosphate 409 lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot -^40 lbs. 



To cotton seed meal plot 154 lbs. 



To acid phosphate plot 62 lbs. 



To cotton seed meal and acid phosphate plot — 56 lbs. 



Average increase with kainit 50 lbs. 



Increase from use of cotton seed meal 278 lbs. 



Increase from use of nitrate of soda 168 lbs. 



Cotton seed meal better by 110 lbs. 



