85 . 



Increase in seed cotton per acre when kainit was added: 



To unfertilized plot 118 lbs. 



To cotto-nseed meal plot 328 " , 



To acid phosphate plot 198 " \ 



To cottonseed meal and acid phos. plot. . . .397 " 



i 

 Average increase with kainit 261 " 



The most efifective fertilizer was kainit, the favorable ef- 

 fect of which was due, at least in large part, to its effect in 

 checking rust. Phosphoric acid and nitrogen were alsa 

 needed by this soil. Every fertilizer was used to greater ad- 

 vantage in combination than alone. The complete fertili- 

 zers (plots 9 and 10) were most profitable, the one contain 

 ing the larger quantity of kainit leading. 



Mr. Anderson also conducted a fertilizer test in 1896. Al- 

 though an accident prevented a statement of the yields, the 

 appearance of the different plots led him to conclude that 

 his soil needed a complete fertilizer and that nitrogen was 

 especially important in 1896. 



Experiment Made by A. Autrey, Berneys, Tat-i-adega 



County. 



Soil and subsoil red clay ; soil 3 or 4 inches deep. 



This field had been in cultivation forty or fifty years. The 

 original forest growth was oak, pine and hickory. The pre- 

 ceding crop was oats. There was only about threefourths^ 

 of a stand on all plots. The plants on all plots remained 

 free from all leaf diseases. 



