28 



Lee County, 1 Mile Southeast of Auburn. 



W. M. Dean, 1915. 

 Gray sandy loam, with stiffer yellow subsoil. 



This sandy upland had been cleared for several 

 years. 



The largest increase in yield, 336 pounds of dry nuts 

 per acre, was obtained on Plot 4, fertilized with acid 

 phosphate, kainit and lime. This was closely followed 

 by Plot 8, fertilized with 240 pounds of acid phosphate 

 and 100 pounds of kainit, which afforded an increase 

 of 320 pounds of dry nuts, and a profit of $9.99 per 

 -acre. The separate increase due to lime is calculated 

 as 208 pounds of dry nuts, or a profit of $5.37 per acre. 



Acid phosphate was the most important single fer- 

 tilizer constituent, its average increase being 216 

 pounds of dry nuts per acre. 



Kainit in each of three combinations failed to effect 

 any material increase in yield, and on every plot was 

 unprofitable, whether used at the rate of 200 or 100 

 pounds per acre. 



Experiments in Lee and Cullman Counties. 



KIND OF 

 FERTILIZER 



Auburn, 1915 



(J 



ft 



-a 



<4-l 



3 

 u 



> 

 O 



a o 



« ft 



'-« ^ 

 O <D 



C.N 



CI 





o 



o 



Cullman, 1915 



(U 



!/3 



"3 

 c 



03 



—I (U 



a; 



Cm 



a 



u 



> 



o 



CS 

 O « 



C N 



N 



Cm 



o 



o 



a- 



6- 



200 

 200 

 000 

 240 

 200 

 600 

 240 

 200 

 200 

 240 

 200 

 000 

 240 

 100 



Acid phosphate 



Kainit 



No fertilizer 



Acid phosphate,. ) 

 Kainit |- 



Lime (slaked) ) 



Acid phosphate.- ) 



Kainit f 



C. S. Meal ] 



Acid phosphate.. \ 



Kainit J 



No fertilizer 



Acid phosphate.. \ 

 Kainit ( 



Lbs. 

 688 

 384 

 384 



720 

 512 



672 



384 

 704 



Lbs. 

 304 

 000 



336 

 128 

 288 



320 



510.48 

 -2 26 



6.50 



1.15 



4.58 



9.99 



1925 

 f888 

 2145 



1906 

 1650 



1283 



1906 

 1246 



Lbs. 

 -220 



-257 



-179 



-376 



-68: 



-666 



$-10.48 

 -12.54 



-14.10 



-18.98 

 -34.26 



-29.21 



