54 



Fertilizer Experiments in Marengo and Montgomery Counties 



on prairie or lime soils. 



FERTILIZER 



Fauns- 

 dale 



MONT- 



gom'ry 

 Prairie 



Mdnt- 

 gom'ry 

 Prairie 



MONT- 



gom'ry 

 Prairie 



KIND 



O a; 



N 

 O; — 



re -*-» 



QJ 



c 



Lbs. 



200 

 240 



'266 

 200 

 240 

 . 3 200 

 ^ * ' 200 



1 

 2 

 3 

 4 



240 

 200 i 



f i'266 



9 { I 240 



t 200 



fi 200 



10! ' 240 



L 100 



Cotton -eed meal . 

 Acid phosphate., 



No fertilizer 



Kainit 



Cotton seed meal 

 Acid phosphate. 

 Cotton se.d meal 



Kainit 



Acid phosphate.... I 



Kainit f 



No fertilizer 



Cotton seed meal. . . 1 

 Acid phosphate.... , 



Kainit I 



Cotton seed meal . . 'I 

 Acid phosphate.... J 

 Kainit I 



Lbs. Lbs. Lbs. Lbs. Lbs. Lbs. Lbs. Lbs 



516 62 492 120 256 78 

 372 82 648 276 320 14 

 454 ... . 372 ... . 334 ... . 

 418 20 558 183 580 233 



■ 540 118 528 149 402 42 



[ 434 28 528 146 694 322 



328 62 648 268 690 306 



374 ... . 388 ... . 396 ... . 



522 148 694 310 672 276 



638 264 726 338 618 220 



643 

 483 

 498 

 590 



578 



663 



593 

 363 



853 



143 

 15 



119 

 134 



246 



203 



490 



723! 360 



>!ONTGOMERY CoUNTY, 6 MiLES SoUTH EaST OF MONTGOMERY. 



Wesley N. Jones and Sons^ 1906-7-8. 



Blade prairie soil in 1906 ; reddish prairie soil in 1907 ; 

 chocolate or ''mulatto^' prairie soil in 1908. 



In 1906 on black or dark gray prairie upland soil, the 

 greatest increase, 338 ponnds of seed cotton per acre, and 

 the largest profit, was afforded by the complete fertilizer ap- 

 plied to plot 10. Apparently the chief need that year was for 

 acid phosphate, though kainit was also helpful. 



In 1907 the greatest increase was afforde'd by a mixture of 

 cotton seed meal and kainit, closely followed by the plot 

 receiving acid phosphate and kainit. In this test kainit 

 was the only profitable fertilizer and was effective whether 

 used alone or in combination with either acid phosphate or 



