EXPERIMENTS POINT THE VAT 



ADDING WEIGHT 

 TO HOGS 



AN ACRE FOR 

 COW FEED 



yi^B^y ^B^^^r s^^^^y*^ 



Corn meal 

 alone 



With 

 alfalfa 



With meat meal 

 and shorts 



Soy Beans 

 ZO bushels 



Cow Peas Corn 

 13 bushels 26bushels 



TJ 



BEFORE 15 YEARS AFTER 



Raising and sel ling corn 

 Insufficient fertilizer fc 



t 



ZO 



Raising corn .feeding 

 stocK ,manur ing 



80 

 Figures represent bushels per acre 



-X- THE GAIN THROUGH CATTLE 

 The result in Income 5 



dollars and cents a- selling corn 



c- sel h'ng cattle 

 |L Cost of farming 



Change in land valueD 

 . . fl b Decreased fertility 

 Gam by d Ceased fertility 

 feeding M 

 corn HG 



Loss by 

 selling corn 



CROP ROTATION PAYS 

 Figures represent 



bushels per 

 acre 



3rd. year of 

 wheat 



Wheat after 

 oats and corn 



WHAT FERTILIZER CAN DO 



A Tennessee test (com) 

 Rgures represent bushels a 



No fertilizer Manure 



Phosphates Same 



Potash and plus 



Cotton seed meal. Quicklime 



TOO MUCH FERTILIZER HARMFUL 

 Bushels of corn per acre 

 30 



25 

 20 

 15 



y^. 



HEWY YIELDS NOT ALW/VS MOST PROFITABLE 



yield, 



yield 

 it 



80 160 2AO 320poundsofnitrate 



^profit ^profit 



cost of fertilizer 

 150 450 pounds of fertilizer 



PLOW DEEP PLOW AT THE RIGHT TIME 



Two experiments in Kansas 



Plowed 7 inches Plowed 3 inches July 15 August 15 September 15 

 Figures represent bushels per acre ^__ 



