26 



LAMAR COUNTY, 6 MILES SOUTH OF SULLIGENT. 



Jack Woods. 



Gray clay loam unth red subsoil. 



This land has been in cultivation 40 years. The preceding 

 crop was cotton. No damage was reported from rust. Slight 

 damage was done by cotton caterpillars. The stand was uni- 

 form. The only fertilizer sho\\*ing any considerable profit was 

 a complete fertilizer consisting of acid phosphate, kainit and 

 nitrate of soda (Plot 12), which afforded a profit of $6.13 per 

 acre, or 126 per cent on the investment in fertilizers. The aver- 

 age estimated increase of seed cotton per acre was 82 pounds 

 for cotton seed meal ; and 57 pounds for acid phosphate ; while 

 'vith kainit there was, on the average, no increase in the crop. 



Nitrate of soda applied June 19, was more efifective than was 

 an earlier and larger application of cotton seed meal. 



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



To unfertilized plot 144 lbs. 



To acid phosphate plot 120 lbs. 



To kainit plot 112 lbs. 



To acid phosphate and kainit plot — 50 lbs. 



Average increase with cotton seed meal 82 lbs. 



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



To unfertilized plot 80 lbs. 



To cotton seed meal plct 56 lbs. 



To kainit plot 126 lbs. 



To cot' on seed meal and kainit plot ■ — 36 lbs. 



Average increase with acid phosphate 57 lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 16 lbs. 



To cotton seed meal plot — 16 lbs. 



To acid phosphate plot 62 lbs. 



To cotton seed meal and acid phosphate plot — 108 lbs. 



Average increase with kainit — 12 lbs. 



Increase from use of cotton seed meal — 50 lbs. 



Increase from use of nitrate of soda 132 lbs. 



Nitrate better by 182 lbs. 



