45 

 Fayette County, 1 1-2 Mii.ics West of Xewtonville. 

 J. B. Gibson, 1906-7. (See Table, p. 46.) 

 Dark sandy soil with red clay suhsoiL 



This level upland field, on which the oriiiinal growth was 

 oak and short leaf pine, has been cleared about 18 years. 



There was an increase with either cotton seed meal, acid 

 phosphate, or kainit, whether these were used separately or 

 in every possible combination. Apparently the greatest need 

 was for acid phosphate. 



1906. 1907. 



Lbs. Lbs. 



Average yield of seed cotton, unfertilized 560 34S 



Increase of seed cotton when cotton seed meal was added: 



To unfertilized plot 784 576 



To acid phosphate plot 24 86 



To kainit plot 72 54 



To acid phosphate and kainit plot 216 92 



Average increase ivith cotton seed meal 274 202 



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



To unfertilized plot 880 640 



To cotton seed meal plot 120 150 



To kainit plot 128 129 



To cotton seed meal and kainit plot 268 167 



Average increase ivith acid phosphate 349 272 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 720. 611 



To cotton seed meal plot 8 89 



To acid phosphate plot — 32 100 



To cotton seed meal and acid phosphate plot 160 106 



Average increase with kainit - • 214 22 1 



