22 



this late start may have kept the fertilizers from exert- 

 in<; their full effect. The stand was jrood. 



As sh(>\vii in the table on pa*^e 23 and in the detailed 

 statements below, pliospliate and cotton schhI meal Avere 

 both elTective in nearly every combination. Kainit was 

 not needed. 



^Iv. Slaton conducted an experiment in 1898 (see Bul- 

 letin No. 102) on similar soil. In that year acid phos- 

 phate and cotton seed meal were even more profitable 

 than in 1900 and kainit was useless. It seems that this 

 jrrav soil, with a clav subsoil near at hand, needs only a 

 mixture of acid phosphate and cotton seed meal to pi^o- 

 duee a profitable cotton crop. 



Increase of seed cotton per acre when cotton seed 

 meal was added : 



To unfertilized plot 192 lbs. 



To acid phosphate plot 43 lbs. 



To kainit plot 110 lbs. 



To acid pliosphate and kainit plot 123 lbs. 



Average increase with cotton seed meal 117 lbs. 



Increase of seed cotton per acre when acid phosphate 

 was added : • 



To unfertilized plot ITG lbs. 



To cotton seed meal plot 27 lbs. 



To kainit plot 145 lbs. 



To cotton seed meal and kainit plot 158 lbs. 



Average increase with acid phosphate 127 lbs. 



'increase of seed cotton per acre when kainit was 

 added : 



To unfertilized plot '. 20 lbs. 



To cotton seed meal plot — 62 lbs. 



To acid phosphate plot — H lbs. 



To cotton seed meal and acid phosphate plot .... G9 lbs. 



Average increase with kainit 4 lbs. 



