18 



Increase of seed cotton per acre v/hen acid phosphate was added: 



To unfertilized plot 144 lbs. 



To cotton seed meal plot 172 lbs. 



To kainit plot 152 lbs 



To cotton seed meal and kainit plot 118 lbs. 



Average increase with acid phosphate 147 lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 322 lbs. 



To cotton seed meal plot 246 lbs. 



To acid phosphate plot 330 lbs. 



To cotton seed meal and acid phosphate plot 192 lb3 



Average increase with kainit 273 lbs. 



Increase from use of different quantities of kainit: 



From use of 200 pounds kainit 192 lbs. 



From use of 100 pounds kainit 178 lbs. 



Increase from use of cot'on seed meal 114 lbs. 



Increase from use of nitrate of soda — 28 lbs. 



Cotton seed meal better by 142 lbs. 



TUSCALOOSA COUNTY, Z% MILES EAST OF TUSCA- 

 , j;... LOOSA. 



W. D. Lewis. 



Red clay loam. 

 . The preceding crop was corn. There was a good stand. This 

 cotton, was 'injured to some extent by drought in June and 



July/ ; 



Cotton sded meal and acid phosphate were profitable when 

 vised' ^lone land' When combined, except when in combination 

 witli kainit. i 



The average increase of seed cotton per acre was 114 

 ppvihids for cotton seed meal, against 58 pounds for acid phos- 

 phate,,- and 152 pounds for kainit. 



?!<3ortt0n seed meal, gave a profit of $4.04 per acre or 135 per 

 c^fit f acid phosphate gave a profit of $4.46 per acre or 242 per 

 cent ; A mixture of cotton seed meal and acid phosphate gave a 

 profit of $7.35 per acre or 163 per cent. 



