52 



Increase of seed cotton per acre when kainit was added: 



To -unfertilized plot 13G lbs. 



To cotton seed meal plot 13 lbs. 



To acid phosphate plot 127 lbs. 



To cotton seed meal and acid phosphate plot . . .188 lbs. 



Average increase with kainit 113 lbs. 



Experiment Made by W. A. Parish, Tex Miles West op 

 Florence^ Lauderdale County. 



Light, grai/ soil iritlt pale rcdilislt snljsoil. 



This tield had bceii cleared -41) or 50 years. The origiual 

 growth is reported as postoak and bUiek jack oak. 



The experimenter reports that there Avas no black rust, 

 but that "red rnst" was present, but did little damage. Tlie 

 season was dry. The stand was good and uniform. 



The complete fertilizer more than trebled the yield of 

 the unfertilized plots, raising the yield to about a bale per 

 acre. This is an increase uf l.OoO pounds of seed cotton, 

 equal to a net p»olit of .|21 .50 per acre after paying for fer- 

 tilizer and picking and ginning of increase. Every fertil- 

 izer, whether applied singly, by tw<js. or all three together, 

 profitably increased the yield. The fertilizer most needed 

 was phosphate. The one least needed was kainit which, 

 however, was ])rofitable. 



Increase of seed cotton per acre when cotton seed meal was added: 



To unfertilized plot 284 lbs. 



To acid phosphate plot 2G9 lbs. 



To kainit plot 237 lbs. 



To acid phosphate and kainit plot 208 lbs. 



.'Average increase with cotton seed meal 249 lbs. 



