42 



plot 9 increased the yield 480 pounds of seed cotton, aflfordr- 

 ing (at 8 cents for lint) a net profit of |7.10 per acre after- 

 paying for fertilizers and cost of ginning and picking the- 

 increase. Cotton seed meal was important, and phosphate- 

 equally so ; kainit was useful, but less needed than the other- 

 two, and was effective only when combined with one or- 

 both of the others. 



The results of the 1901 test are in accord with similar 

 experiments made by Mr. Baffin in 1900 on the same farm,., 

 (property of Hon. F. S. Moody) and with those obtained by 

 him in 1897 and 1898 on the county Poor-house farm. 



Increase of seed cotton per acre when cotton seed meal was added':: 



To unfertilized plot 104 lbs. 



To- acid phosphate plot 207 lbs. 



To kainit plot 292 lbs. 



To acid phosphate and kainit plot 257 lbs. 



Average increase with cotton seed meal 215 lbs. 



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



To unfertilized plot 144 lbs. 



To cotton seed meal plot ^, 247 lbs. 



To kainit plot 262' lbs. 



To cotton seed meal and kainit plot 227 lbs. 



Average increase with acid phosphate 220 lbs; 



Increase of .seed cotton per acre when kainit was added : 



To unfertilized plot —39 lbs. 



To cotton seed meal plot 149 lbs. 



To acid phosphate plot 79 lbs. 



To cotton seed meal and acid phosphate plot . . 129 lbs. 



Average increase with kainit 79 lbs. 



We may safely conclude that- on soils of this character 

 near Tuscaloosa cotton requires a large proportion of phgs- 

 phate, considerable cotton seed meal, and les& of ka.iiiaiti 

 than of either meal or phosphate. 



For Yields and increase see table on paae 39.. 



