COTTON CULTURE 31 



mulas should be so modified as to carry relatively more 

 potash and more nitrogen. This may be done by increasing 

 the quantity of muriate of potash by fifty per cent or even 

 more in some cases, and the cotton-seed meal by twenty- 

 five to fifty per cent, but on light sandy soils that have 

 been brought up by rotation of crops, green manuring 

 and the use of horse and cattle manure, the nitrogen car- 

 rying ingredients, may be proportionately diminished by 

 from twenty-five to fifty per cent. Therefore, for light 

 sandy soils, the following formula is recommended: 



Muriate of potash 102 Ibs. 



Acid phosphate (14 per cent) 642 " 



Cotton-seed meal 636 " 



Dry sand or earth filler 120 



Total i ,500 



This mixture would analyze about four per cent potash, 

 seven per cent phosphoric acid, and three per cent nitrogen. 



In case it should be desired to mix a ton of the above 

 mixture, the following quantities should be used: 



Muriate of potash 136 Ibs. 



Acid phosphate (14 per cent) 847 " 



Cotton-seed meal 857 " 



Dry sand or earth filler 160 " 



Total 2,000 



As the soils tone up from "light sandy" to those of the 

 same type but of darker color and more loamy character, 

 such as may be described as "sandy loams," "medium 

 loams," and to the still higher type of "clay soils," the 

 formula should more and more approximate to the stand- 



