COTTOy COMPOSITIOy 



271 



246. Amounts of nitrogen, phosphoric acid, and potash 

 in the different parts of the cotton plant. — The following 

 table shows that to produce a crop of 300 pounds of dry 

 lint and the other parts associated 'n'ith this amount of 

 fiber there was recjuired about 42 pounds of nitrogen, L3 

 pounds of phosphoric acid, and 35 pounds of potash. The 

 figures are reached by averaging the analyses made b)' Ross 

 and McBryde, and are here given merel}' for reference : — ■ 



Amounts of Fertilizer Constituents required to produce a Crop oj 

 300 Pounds of Lint 



247. Uses. — Cotton is used to a greater extent than 

 any other vegetable fiber for clothing. Wool is the only 



