APPENDIX. 



129 





> 



e m 



Os-i 



= c 



GO C 



p p. 



Yield Per Acre. 





i t 



Date of cutting and condition of crop. 



o 



c 



c 

 o 



5 



5 o 



B = 



c ~ x 



III 





13 

 7 

 8 

 9 



26,166 

 29,777 

 31,000 

 28,S33 



3,064.0 

 5,210.9 

 6,060.5 

 6,680.6 

 7,039.7 



2,146.9 

 849.6 

 620.1 

 35S.1 



165.0 



September 12, some ears glazing 



September 21, all ears glazed 



121.3 

 77.5 

 39. S 



Increase dry matter after August 15 . 



3,974.7 













The results of this experiment certainly furnish a striking illustra- 

 tion of the foil j' of harvesting - immature corn for silage or fodder 

 purposes whenever it is possible to allow it to. attain maturity. 



In this instance, the total quantity of dry matter in an acre of the 

 corn at maturity was nearly two and one-half times greater than at 

 the silking period thirty-seven days previous, the average rate of increase 

 of Arj substance per acre being about 108 pounds daily. This daily 

 increase is equivalent in quantity to one day's ration for four or five 

 cows of ordinary weight. 



The Influence of Matukity upon the Quality of the Dry 

 Matter in the Corn Plant. 



It is well known that the portion of the plant known as nitro- 

 gen-free extract is a mixture of substances such as sugar, starch, 

 gums, waxes, etc., some of which have a higher value than others 

 for use by the animal. In short, the larger the proportion of 

 starch and sugars in the nitrogen-free-extract of a food, the more 

 highly do we estimate the nutritive worth of that food. For this 

 reason a higher value is placed upon the nitrogen-free-extract of 

 the grains than upon that of the coarse fodders. 



It is evident then, that if allowing the corn plant to mature 

 increases the relative proportion of sugars and starch in dry matter, 

 we have not only the advantage of obtaining a larger yield of dry 

 matter but we secure material of better quality for food purposes. 

 The figures show the facts as obtained from a single investig-ation. 



