42 



Fertilizer experiments in Marshall and Blount Counties 



BOAZ 



Oneonto 



o 



z 



4-* 



KIND 



■■J=i ~ 



S t: 



1 



2 

 3 

 4 



7 



10 



11 



12 



Lbs. 

 200 

 240 

 000 

 20O 

 201) 

 240 

 200 

 200 

 000 

 240 

 200 

 200 

 240 

 200 

 200 

 240 

 103 

 0,10 

 240 

 100 

 100 



Cotton seed meal _. 



Acid phosphate 



No fertilizer 



Kainit 



Cotton seed meal / 

 Acid phosphate.- 'i 

 Cotton seed meal i 



Kainit . \ 



No fertilizer 



Acid phosphate.- / 



Kainit \ 



Cotton seed meal ; 

 Acid phosphate-. 



Kainit ; 



Cotton seed meal , 

 Acid phosphate. - 



Kainit ) 



No fertilizer 



Acid phosphate., "l 



Kainit _ . _ > 



Nitrate of soda ._ J 



$ 7.50 

 11.63 



^2^76 

 14.90 



3.90 



14.78 



17.60 



19.26 



9.20 



J3LOUXT COUNTY, 6 MILES WEST OF ONEONTO. 



W. F. TiDWELL. 



Gray gravely loam, zvith silt and stone subsoil. 



This land has been in cultivation for 25 years. The preced- 

 ing crop was corn. There was no damage from rust. The 

 most profitable fertilizer was the application on Plot 10, which 

 .-gave an estimated profit of $19.26 per acre. The most profit- 

 able single fertilizer was acid phosphate, which gave an esti- 

 mated profit of $11.63 per acre. 



The average estimated increase of seed cotton per acre was 

 210 pounds for cotton seed meal : for acid phosphate 402 

 pounds ; for kainit 84 pounds. 



