21 



Increase of seed cotton per acre when acid phosphate 

 was added : 



To unfertilized plot 104 lbs. 24 lbs. 



To cotton seed meal plot — 56 lbs. 39 lbs. 



To kainit plot 116 lbs. 78 lbs. 



To cotton seed meal and kainit plot . . — 24 lbs. — 7 lbs. 



Average increase with acid phosphate, 35 lbs- 34 ibs. 



' Increase of seed cotton per acre when kainit was 

 added : 



To unfertilized plot . . —24 lbs. —1 lb. 



To cotton seed meal plot — 32 lbs. 37 lbs. 



To acid phosphate plot — 12 lbs. 53 lbs. 



To cotton seed meal and acid phosphate 



plot —16 lbs. —9 lbs. 



Average increase with i<ainit —20 Ibs. 20 Ibs. 



In 1900 cotton seed meal was the only fertilizer that 

 was very effective. In 1899 none of them were decided- 

 ly beneficial. On account of the extremely unfavorable 

 weather in both years, it is probable that neither experi- 

 ment indicates the real needs of this soil, so that we 

 must place these tests in the class of inconclusive experi- 

 ments. 



Experiment made in 1899 by J. P. Slaton^ 7 miles 



SOUTH OF NOTASULGA AND 7 MILES N. E. OF 



TusKEGEE^ Macon County. 

 Gray sandy Mj)landy icitli retentive red clay siibsoil: 



The field was originally cleared about 75 years ago, 

 and cleared of the second gro^i:h about 12 years ago. 

 The original growth was long leaf pine and oak. The 

 preceding crop was cotton. 



The cotton did not come up until the first of June and 



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