MANGELS AS FORAGE 285 



Mangels versus corn 



The relative production of dry matter in a crop 

 of fodder corn and in mangels is well shown by an 

 experiment made by the New Jersey Station in 

 1894. The soil was good, and the plots on which 

 the crops were grown similar in character. The 

 tonnage yield and yield of nutrients per acre were 

 as follows : 



Corn Mangels Corn forage 



Containing pounds of Mangels forage increase increase 



Weight of green crop . . 56,600 20,000 36,600 . . . 



Dry matter 4,684 6,130 . . . 1,446 



Crude fat 33.9 152.2 . . . 118.3 



Crude fiber 379.2 1,484.7 . . . 1,105.5 



Crude protein 684.9 468.9 216.0 . . . 



Crude ash 503.7 243.8 259.9 



Carbohydrates 3,112.6 3,780.2 . . . 667.6 



The first point of importance shown by this 

 comparison is that the total dry matter contained 

 in the crop of mangels was nearly 25 per cent less 

 than in the fodder corn; and for every pound of 

 dry matter contained in the crop it was necessary 

 to handle twelve pounds of water, while in the 

 corn fodder the proportion of dry matter to water 

 was as 1 to 3.2. It is shown, also, that in feed 

 constituents the corn fodder furnished nearly five 

 times as much crude fat, and four times as much 

 crude fiber as the mangels and 20 per cent more 

 carbohydrates. The feed constituent furnished 

 in greatest amount by the mangels is crude pro- 



