38 



1906. 1907. 190S. 



Lbs. Lbs. Lbs. 



Average yield of seed cotton per acre unfertilized ..248 360 312 

 Increase in seed cotton when cotton seed meal was added: 



To unfertilized plot 200 22 144 



To acid phosphate plot 174 218 132 



To kainit plot 190 58 166 



To acid phosphate and kainit p'ot — 17 43 164 



Average increase with cotton seed meal 137 So 152 



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



To unfertilized plot 288 174 292 



To cotton seed meal plot 262 370 280 



To kainit plot 342 121 112 



To cotton seed meal and kainit plot 135 114 110 



Average increase with acid phosphate 257 195 199 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 75 182 156 



To cotton seed meal plot 65 210 178 



To acid phosphate plot : 129 129 —24 



To cotton seed meal and acid phosphate plot — 62 — 46 8 



Average increase with kaiyiit 52 119 80 



