32 THE DAIRY OF THE FARM. 



200 days in the year. Each cow must have ahout 8 Ih. of 

 litter daily ; she may be kept comfortable with this, though 

 it is certainly a scanty allowance ; she will thus require 

 14 cwt. per annum, and 25 cows will need about 17 tons a 

 year a quantity which may be supposed to grow on 12 

 acres, the half of the arable land. 



The arable land, then, may be cropped thus : 



1 acre of lucerne. 



12 acres of grain crop, or 6 of wheat and 6 of oats. 

 6 acres (after wheat) 2 of rye, 2 of Italian rye-grass, and 2 of vetches. 



These again succeeded by 6 acres of mangold wurzel. 

 6 acres (after oats) 1 of parsnips, and 5 of carrots. 



Of the pasture land : 



18 acres may be mown, and 



17 acres depastured, each year. 



The following, accordingly, will be the produce of green 

 food, besides the straw of the 12 acres of grain : 



18 acres of hay, equal to 30 tons of hay ; which may be con- 



sidered equal in green food, to 120 tons. 



18 acres of aftermath, equal to . . . . . . . 60 



17 acres depastured, equal to . . . . . .190 



1 acre of lucerne, equal to . . . . . . 10 



2 acres of rye, equal to ....... 15 



2 acres of Italian rye-grass, equal to . . . . . 25 



2 acres of vetches, equal to . . . . . . .20 



6 acres of mangold- wurzel, equal to . . . . . 170 



1 acre of parsnips, equal to 10 



5 acres of white carrots, equal to 60 



Or, in all 680 tons. 



a quantity equal to nearly 2 tons of green food a day, which 

 will keep 30 to 35 cows very well. And the crops may all 



