6O KNAPP METHOD OF GROWING COTTON 



soils. This question must be settled by tests 

 on individual farms. The following formula 

 will serve as a guide in mixing fertilizers to be 

 used under the conditions mentioned : 



TABLE VI. PROPORTIONS OF FERTILIZER FOR COTTON 



POUNDS OF FERTILIZER PER ACRE 



Where it is found that potash is needed on 

 clay lands, one hundred pounds of kainit or its 

 equivalent in muriate or sulphate of potash 

 may be added. 



Where the land has grown a heavy crop of 

 peas or beans the year before, half the amount 

 of cotton seed meal may be used. 



On the black waxy lands of Alabama and 

 Mississippi and the stiff alluvial lands of the 

 Mississippi Valley that have been planted to 

 cotton for a long period of years and have be- 

 come deficient in vegetable matter, 200 to 300 

 pounds of cotton seed meal or 100 pounds nitrate 

 of soda per acre have given profitable returns. 



