35 



Increase of seed cotton per acre when acid phosphate 

 was added : 



To unfertilized plot 48 lbs. 



To cotton seed meal plot 100 lbs. 



To kainit plot —28 lbs. 



To cotton seed meal and kainit plot 76 lbs. 



Average increase with acid phospiiate 64 lbs. 



Increase of seed cotton per acre when kainit was 

 added : 



To unfertilized plot 128 lbs. 



To cotton seed meal plot 264 lbs. 



To acid phosphate plot 52 lbs. 



To cotton seed meal and acid phosphate plot .... 180 lbs. 



Average increase with kainit 155 lbs. 



Experiment made by C. E. Kivers, ^ miles s. of 

 HuRTSBORO, Russell County. 



Dark sandy soil, ivitli ijcUoio suhsoiL 



This test was made in 1900 on flat land that might be 

 designated as second bottom. 



The land had been cleared about 40 years ago of its 

 original gTOAvth of long leaf pine, but for many years 

 before the experiment began it had been uncultivated 

 and had grown up in broomsedge. The date of planting 

 was late and it was noted that many bolls, especially on 

 Plots 9 and 10, did not mature. 



Phosphate under all conditions Avas highly profitable. 

 The average increase with cotton meal was not quite 

 sufficient to yield a profit ; this poor showing of cotton 

 seed meal is probably due to the fact that considerable 

 vegetable matter and nitrogen must have accumulated 

 on the land while it was uncultivated. On fields in 



