41 • 



Cullman County, 1 Mile South of Cullman. _ 

 L. A. Fealy, 1906. (See Table, p. 39.) 

 (Jraij sandij loam, u-ifh yellow loam suhsoil. 



On this upland field, long in cnltivation, a mixture of ac- 

 id phosphate and cotton seed meal gave the largest yield; 

 but this result may have been due to the fact that this plot 

 occupied the lowest position in the field. On this account 

 it is impossible to determine whether potash was needed on 

 this soil. 



In 1904 on similar land Mr. Fealy made a test in which 

 the average increase from cotton seed meal was 180 pounds, 

 from acid phosphate 176 pounds, and from kainit 98 pounds. 



Lbs. 



Average yield of seed cotton, unfertilized 452 



Increase of seed cotton per acre when cotton seed meal was ad- 

 ded: 



To unfertilized plot 152 



To acid phosphate plot 268 



To kainit plot 232 



To acid phosphate and kainit plot 48 



Average increase with cotton seed meal 175 



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



To unfertilized plot 196 



To cotton seed meal plot 312 



To kainit plot 176 



To cotton seed meal and kainit plot — 8 



Average increase ivith acid phosphate 169 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 136 



To cotton seed meal plot 216 



To acid phosphate jlot 116 



To cotton seed meal and acid phosphate plot — 104 



Average increase with kainit 91 



