12 



EXPERIMENT MADE IN 1900 BY E. L. CUNNINGHAM, 6 MIIeS 

 EAST OF FURMAN, WILCOX COUNTY. 



White prairie^ the surface dark gray; subsoil ichite rot- 

 ten limestone. 



The original growth, cleared about 30 or 40 years ago, 

 is reported as oak and hickory with some short-leaf pine. 

 The field was in cotton in 1897 and 1898 and unculti- 

 vated in 1899. 



The depth of plowing was 5 or 6 inches. On Plot 5 

 there was considerable black rust, but very little on 

 Plots 9 and 10, where a complete fertilizer containing 

 kainit w^as used. The stand was full and uniform. 

 There was too much rain. 



The yields are given in the tabl^ above. 



Increase of seed cotton per acre when cotton seed 

 meal was added : 



To unfertilized plot 80 lbs. 



To acid phosphate plot . . 178 lbs. 



To kainit plot 106 lbs. 



To acid phosphate and kainit plot 4 lbs. 



Average increase with cotton seed meal, - - 92 lbs. 



Increase of seed cotton per acre when acid phosphate 

 was used. 



To unfertilized plot 80 lbs. 



To cotton seed meal plot . . 178 lbs. 



To kainit plot 231 lbs. 



To cotton seed meal and kainit plot 129 lbs. 



Average increase with acid phosphate, - - 130 lbs 





