g2 STATE POMOLOGICAL SOCIETY. 



supply. We may safely assume that he can with profit add a 

 quantity of the Cumberland superphosphate of lime, or that of 

 some other good manufacture. It is believed that this is one of 

 the best of all manures for the orchard. For beets add also eight 

 bushels of salt to the acre. By the use of this manure, with the 

 adjunct of superphosphate, he can, upon every acre of his orchard, 

 easily produce a thousand bushels of Mangel Wurzels. This is a 

 good medium crop, or their equivalent in nutritive value of sugar 

 beets. No crop is more sure, or more easy to manage, as it has 

 few superiors in value as a green forage crop. 



By the estimate of Mr. Lawes, based on the same experiments 

 before cited, a thousand bushels of Mangel Wurzels are equiva- 

 lent to eight tons of English hay. Moreover, the Mangel Wurzel 

 produces an enormous growth of leaves, which by analysis and 

 practical experience are proved to be of great value as forage — 

 Prof. Wilson says, of three times the value of the roots, "as a 

 feeding and manuring substance." This may, however, be an over- 

 estimate. And unless the crop is to be in part consumed in the 

 autumn, as it should be, it is not practicable to make the leaves 

 available to much extent, as forage, although as manure, the full 

 value may be easily realized. 



Adopting the same estimates as before, the manure resulting 

 from the consumption of thirty tons, or one thousand bushels, of 

 the roots, is worth $32.10. Then if Prof. Wilson's estimate of 

 the manurial value of the leaves is correct, the manure from the 

 leaves consumed or unconsumed by cattle, would be worth $96.30 

 for the acre of leaves, making the manurial product of an acre of 

 beets of the value of $128.40. 



But to avoid the hazard of extremes, let us suppose the leaves 

 to be only of equal value with the roots for forage or manure. 



Suppose, also, that the farmer, by early feeding, can manage to 

 make half the leaves available as forage for fattening beef and 

 mutton, and for dairy cows. Then we have upon every acre a 

 crop of roots and leaves capable of yielding forage equivalent to 

 twelve tons of the best bay, and a product of mantire of the value 

 of $64.20. 



One half of the strength of the fertilizers used for the crop has 

 been taken up by the growing trees or remains in the soil for their 

 future support. For the other half consumed by the crop, and for 

 all the labor upon the acre of beets, the crop, equivalent to twelve 

 tons of hay or two hundred and eighty bushels of corn, and equal 



