APPENDIX 



347 



Now, having found out the yield per acre of green and 

 crib-cured corn, and of dry matter, or real food elements, the 

 next question is, what is the real value to the farmer of these 

 crops? Dividing the crops into three great classes, and ap- 

 plying original data, American Agriculturist gets these results : 



POUNDS OF DIGESTIBLE FOOD ELEMENTS IN IOO POUNDS 

 OF CHEMICALLY DRY CORN 



Name of Food Element 



Cellulose or fiber 



Fat or oil 



Protein or albuminoids (nitrogenous matter) 



Sn gar, starch, etc (carbohydrates) 



Mineral matter (lime, potash , phosphoric acid, etc). . 



Feeding value per 100 pounds 



Manurlal value per 100 pounds 



Total value per 100 pounds 



Feeding and manurial value per bushel of 66 pounds 



1.34 

 5.03 

 10.78 

 81.12 

 1.73 



ai o 



2.16 



4.67 



10.26 



81.58 



1.53 



$1.17 $1.11 



.34 .28 



1.61 1.42 



.84 .79 



1.63 



6.63 



10.S3 



80.89 



1.52 



$1.18 

 .33 

 1.51 



.84 



In this table, the composition of eastern corn is based on 

 the average of seven analyses, made at the Massachusetts 

 experiment station, of crops grown in the American Agricul- 

 turist competition; southern corn, average of five analyses, 

 made at the South Carolina station, of prize crops grown in 

 the state; western corn, Jenkins's statement. The feeding 

 value is based on 4.2 cents per pound for fat or oil, 1.6 cents 

 for the protein, and 0.96 cent per pound for the sugar, starch, 

 fiber, etc. These are ' the average costs of the respective ' 

 elements, at the market prices for feed sold in Connecticut 

 last year, as determined by Jenkins. It may be assumed that 

 the digestibility of all these corns is practically equal, and, 

 therefore, that in all three classes of corn 34 per cent of the 

 fiber, 76 per cent of the fat, 85 per cent of the protein and 06 

 per cent of the sugar and starch are digestible or available 

 as food, under a judicious system of feeding. The manurial 

 value is based on phosphoric acid at eight cents per pound, 

 potash five cents, and nitrogen 16 cents; these elements often 

 cost as much in ordinary commercial fertilizers. The total 

 value per bushel is used for estimating the total feeding and 

 manurial value of the prize crops in the large table of yields. 

 It is an arbitrary basis of comparison, but is equally fair to 

 all ; it has nothing to do with the market or commercial value. 



