77 



Increase of seed cotton per acre when acid phosphate 

 was added: 



To unfertilized plot 150 lbs. 



To cottouseed meal plot . . 83 " 



To kainit plot 182 " 



To cottonseed meal an.d kainit plot — 129 



55 



Average increase with acid phosphate 72 ** 



Increase in seed cotton per acre when kainit was added: 



To unfertilized plot 22 lbs. 



To cottonseed meal plot 99 " 



To acid phosphate plot 54 " 



To cottonseed meal and acid pho.s. plot. . — 113 " 



n 



Average increase with kainit 16 



Both cottonseed meal and acid phosphate increased the 

 yield, cottonseed meal leading in spite of the preceding croj) 

 of cowpeas. Kainit was not effective, and the only plots on 

 which any rust was noticed were plots 1 and 3. With lime 

 there was an increase of seventy-eight pounds of seed cot- 

 ton (compare plots 10a and 10b), or just enough to pay the 

 cost of the lime. Doubtless in a normal season fertilizers 

 would afford results very different from those of 1897, when 

 complete fertilizers made a very poor showing. , 



ExPERiMKNT Made by W. T. Hightowek, Perote, BtrLLOCK 



County, 

 Jled soil, with clay subsoil at a depth of 8 indies. 

 This field had been in cultivation, thirty-seven years. The 

 growth was red oak and post oak. The crop in 1895 and 

 1896 was corn. 



The weather w^as very hot and dry during the growing 

 season, and there was "no rust or dropping of leaves or 

 fruit except from dry weather." 



