28 



Increase of seed cotton per acre when kainit was added: 



'To unfertilized plot lbs. 192 lbs. —5 lbs. 



To cotton seed meal plot 11 lbs. G4 lbs. 298 lbs. 



-To acid phosphate plot 9 lbs. 9G lbs. 61 lbs,. 



"To cotton seed meal and phosphate plot 51 lbs. 16 lbs. — 160 lbs. 



.Average increase with l<ainit 17 lbs. 92 lbs. 19 lbs. 



Experiments Made by C. L. Jenkins, near Silver Run, 



Talladega County. 



Most of the soil on this farm, six miles south of Oxford, is 



light reddish to yelloioish loam, apparently fairly 



well supplied with lime. 



In 1902. The preceding crop was wheat. No cowpeas 

 had been grown in recent years. The early part of the sea* 

 rson was very dry. All three fertilizer materials were use- 

 ful, a complete fertilizer giving the largest yield. 



In 1903. The largest yield was obtained by the use of a 

 -complete fertilizer consisting of 

 •;200 lbs. cotton seed meal per acre. 

 240 lbs acid phosphate per acre. 

 100 lbs kainit per acre. 



In 190If. Again the largest yield was obtained by the 

 complete formula just mentioned. Plot 5 this year, without 

 ncainit, yields almost as much as the plots with complete 

 -fertilizers. The first need of this soil seems to be for phos- 

 }phate but nitrogen and potash were added with effect. 



