63 



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



To unfertilized plot 296 lbs. 



To acid phosphate plot — 2 lbs. 



To kainit plot 8G lbs. 



To acid phosphate and kainit plat 123 lbs. 



Average increase with cotton seed meal 125 lbs. 



Increase of seed cotton per acre when acid phosphate was added ^ 



To unfertilized plot 448 lbs. 



To cotton seed meal plot 150 lbs. 



To kainit plot 386 lbs. 



To cotton seed meal and kainit plot 423 lbs. 



Average increase with acid phosphate 351 lbs. 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 51 lbs. 



To cotton seed meal plot — 159 lbs. 



To acid phosphate plot — 11 lbs. 



To cotton seed meal and acid phosphate plot . .114 lbs. 



Average decrease with kainit 1 lbs. 



Experiment Made by W. H. Simmons, Midland City^ 



Dale County. 



Alone none of the fertilizers was very advantageous, but- 

 in a complete fertilizer all three were decidedly beneficiaU 

 The largest increase, 296 pounds of seed cotton per acre, re- 

 sulted from the use of the complete fertilizer on plot 0.. 

 This afforded a net profit of |2.32 per acre, which is nearly 

 nine cents more than the profit on plot 10, where less kainit 

 was ustd. See table on page 64. 



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



To unfertilized plot 88 lbs. 



To acid phosphate plot 127 lbs. 



To kainit plot 86 lbs. 



To acid phosphate and kainit plot 139 lbs. 



Average increase with cotton seed meaf 110 lbs. 



