CHEMICAL COMPOSITION OF FEEDING STUFFS 



Yield of Ingredients in Corn Plants, in Grams* 



55 



* 1000 grams equal 2.2 pounds avoirdupois. 



Similar results were obtained at Geneva (N. Y.), Maine, and 

 other stations in studies of the development of the corn plant from 

 tasselling to maturity. 5 



Chemical Changes in the Corn Crop toward Maturity 



The data given in the table show how rapidly the yields of feed 

 materials increase with the advancing age of the corn plant and also 

 how the increase during the latter stages of growth comes mainly 

 on the nitrogen-free extract (largely starch). Between tasselling 

 and maturity the corn .plant will increase an average of about 200 

 per cent in dry matter and toward 300 per cent in carbohydrate 

 content, according to the results of experiments conducted at five 

 different stations. The largest amounts of feed materials in the corn 

 crop are not obtained until the corn is well ripened; when the 

 plants have reached their total growth in height they contain only 

 one-third to one-half of the weight of dry matter which they will 

 gain if left to mature. 



'Geneva, N. Y., Report, 1899; Maine Report, 1895. 



