35 



meal to the phosphate was highly profitable. Kainit wag 

 ainprofitable. 



These results suggest that a suitable fertilizer for this 

 «oil might well contain more phosphate than meal, say two- 

 thirds acid phosphate and one-third '•otton seed meal. Mr. 

 Long added an additional plot fertilized only with four 

 IJ-horse loads unweighed stable manure per acre. From this 

 the increase over the nearest unfertilized plot was 188 

 pounds of seed cotton per acre. 



•Increase of seed cotton when cotton seed meal was added: 



To unfertilized plot 104 lbs. 



To acid phosphate plot 64 lbs. 



To kainit plot 144 lbs. 



To acid phosphate and kainit plot 112 lbs. 



Average increase with cotton seed meal 106 lbs. 



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



To unfertilized plot 296 lbs. 



To cotton seed meal plot 256 lbs. 



To kainit plot 300 lbs. 



To cotton seed meal and kainit plot 268 lbs. 



Average increase with acid phosphate 278 lbs. 



Cncrease of seed cotton per acre when kainit was added: 



To unfertilized plot 4 lbs. 



To cotton seed meal plot 44 lbs. 



To acid phosphate plot 8 lbs. 



To cotton seed meal and acid phosphate plot.. 56 lbs. 



<Average increase with kainit 28 lbs. 



