58 



Increase of seed cotton per acre when kainit was added: 



To unfertilized plot 290 



To cotton seed meal plot — 40 



To acid phosphate plot 80 



To cotton seed meal and acid phosphate plot 390 



Average increase with kainit 180 



Fertilizer Experiments in Lee County. 



FERTILIZER 



Auburn 

 J. Jackson 



Beehive 



Beehivb 



KIND 



I- & 

 o 



> x; 



o oj 



t/j — 



U <U 



o *<- 



E Q 



HH 3 



200 

 ' 240 



'266 

 200 

 240 

 a) 200 

 •^ I 200 



1 



2 

 3 

 4 



10- 



< 240 

 I , 200 



( '266 

 \ i 240 

 ( ! 200 

 ( 200 

 240 

 100 



Lbs. 



Cotton seed meal ... 800 



Acio phosphate .... 710 



No fertilizer 610 



Kainit 980 



Cotton .seed meal . \ ^qa 



Acid phosphate . . J ^'^- 



Cotton seed meal . | _^,, 



Kainit [ ^ "■ 



Acid phospha e .. ) ,.,,. 



Kainit \ ' ^^' 



No fertilizer 510 



Cotton seed meal . ) 



Acid phosphate . . - 1010 



Kainit ) 



Cotton seed meal . ) 



Acid phosphate. . . [■ 750 



Kainit ) 



Lbs. 



190 

 100 



290 

 110 



150 



180 



500 



240 



Lbs. 



428 

 424 

 272 

 484 



552 



692 



608 

 320 



624 



560 



Lbs. 



156 

 152 



"202' 

 260 



392 



297 



304 

 240 



Lbs. Lbs. 



280 96 



304 120 



184 



304 123 



560 382 



400 225 



444 273 



168 



640 472 



560 392 



Lee County, 4 Miles South op Loachapoka, at Beehive. 



T. W. Cox, 1905-6. 



Coarse sandy soil uyith yellow sandy suhsoil. 



This piece of upland had been in cultivation for many 

 years. In 1905 rust was severe on all plots. The stand of 

 plants was uniform. On this very poor coarse sandy soil 



