COTTON COMPOSITION 



269 



The food and fertilizer constituents contained in one ton of 

 cotton seed and of a similar amount of high-grade cotton-seed 

 meal are as follows : — 



Pounds of Food and Fertilizer Constituents in One Ton 

 of Cotton Seed and of high-grade Cotton^seed meal 



Cotton aeed, 

 2000 lb. 



Principal food constituents 

 Protein .... 

 Nitrogen-free extract 



Fat : 



Fiber 



Fertilizer constituents 

 Nitrogen .... 

 Phosphoric acid . . 

 Potash 



Food Constituents 



Cotton-seed 



meal, 2000 



lb. 



Lb. 



397 

 469 

 398 

 451 



63 

 25 

 23 



Lb. 



846 

 472 

 204 

 112 



113 



54 

 36 



Cotton 



Seed 

 Richer bt 



% 



95 

 303 



Cotton- 

 seed Meal 

 Richer by 



113 



1 



79 

 116 



57 



244. Utilizing cotton-seed products. — From the above 

 table it may be seen that, regarded as food, and overlooking 

 slight differences in digestibility, cotton-seed meal is much 

 more valuable than cotton seed, having more than twice 

 as much protein, but less fat and fiber. 



In fertilizer constituents, high-grade cotton-seed meal 

 is practically twice as rich in nitrogen and phosphoric 

 acid, and more than 50 per cent richer in potash, than 

 cotton seed. 



The farmer may act on the general statement that he is 

 making a nearly even exchange in plant-food when he 

 brings back to his farm half a ton of cotton-seed meal for 

 each ton of seed sold. But in food constituents, cotton- 



