45 



Fertilizer experiments in Limestone and Winston Counties 



Athens 



Nauvoo 



o 



<U V 





O 

 P 



KIND 





Lbs. 



200 

 240 



01)0 



zoo 



200 

 240 

 201) 

 200 

 000 

 240 

 200 

 200 

 240 

 200 

 200 

 240 

 100 

 000 

 240 

 100 

 100 



Cotton seed meal , . 



Acid phosphate 



No fertilizer- 



Kainit 



Cotton seed meal / 

 Acid phosphate. . \ 

 Cotton seed meal / 



Kainit \ 



No fertilizer 



Acid phosphate.. / 



Kainit \ 



Cotton seed meal J 

 Acid phosphate. . - 



Kainit ) 



Cotton seed meal ) 

 Acid phosphate.. .- 



Kainit . _ ) 



No fertilizer 



Acid phosphate., t 



Kainit - 



Nitrate of soda . . ' 



$ 4.42 

 9.44 



"o!65 

 9.40 



—0.15 



5.88 

 2.86 



0.25 

 1.78 



WINSTON COUNTY, 2 MILES NORTHWEST OF 



NAUVOO. 



D. C. Wakefield. 



Dark sandy loam "second bottom," zvith yellozv clay subsoil. 



This field has been in cultivation only 4 years. Its original 

 growth was short leaf pine and oak. Corn was the preceding 

 crop. The land was turned with a one-horse plow and then 

 subsoiled with a scooter. The stand was uniform. Cotton rust 

 occurred on all plots and was estimated as reducing the yield 

 one-third. There was no notable insect injury. 



Acid phosphate was the fertilizer chiefly needed, affording an 

 average increase in seed cotton of 224 pounds per acre, as com- 

 pared with an increase of 88 pounds for cotton seed meal, and 



