ROOT CROPS. 



85 



cows, in increasing their flow of milk to a surprising degree. 

 Care should be taken that the dirt and sand be removed from 

 them before given to cattle, as there has been considerable com- 

 plaint among farmers, of the injurious effects of them on the 

 enamel of the teeth of the animals, causing them to wear off 

 and decay. The following table of a series of experiments con- 

 ducted at the Albert Institution, in Dublin, Ireland, shows the 

 value of the leaves of this root : 



Yield. 

 The yield of this root, of course, varies with the fertility of 

 the soil, and the favorableness of the season ; but for a fair 

 average yield, everything considered, about one thousand 

 bushels to the acre may be anticipated. Dr. Loring cultivated 

 sixteen hundred bushels to the acre, from a mixture of long 

 red and yellow globe seed, but such a yield is extraordinary, 

 much beyond the average. The following table of average 

 yields of the different varieties, as observed in England, falls 

 considerably below the figure. The ton measures about thirty- 

 four bushels : 



Variety of Mangold Wurzel. 



Produce per Statute* Acre. 



Orange globe. 

 Deep orange globe, 

 Long red, . 

 Long yellow, 

 Red globe, . 

 Sugar beet, . 



* Containing 4,810 square yarda. 



This enormous yield, when we consider the amount of nutri- 

 ment it affords from the root alone, without taking into consid- 



