HARVESTING THE CORN CROP 



225 



TABLE LIV 



Yield per Acre op Green Fodder, Dry Matter, and 

 Nutrients 



Not only does the total yield increase, but the quality 

 improves with maturity. The large group of compounds 

 under the head " nitrogen-free extract " are not all 

 equally valuable for feeding purposes. Starch and the 

 sugars are the most valuable and both increase in propor- 

 tion as the plant matures, due to the development of ear, 

 as shown by Jordan of the Maine station.'- ^ 



TABLE LV 



August 15, ears beginning to 



form 



August 28, a few roasting 



ears 



September 4, aU roasting 



ears 



September 12, some ears 



glazing 



September 21, all ears glazed 



Percentage op 

 Starch and Sugar 

 IN Nitrogen- 

 free Extract 



Pounds of Starch 

 AND Sugar 



PRODUCED per AcRH 



368.5 



1,172 



1,545 



1,764 

 2,244 



1 Maine Agr. Exp. Sta., Bui. 17: i. 



2 U. S. Dept. Agr., Farmers' Bui. 97 : 12. 



