VETCH FOR FORAGE 269 
VETCHES 
There are two species of vetch that have re- 
cently come into considerable use. In the use of 
vetches for any of the purposes mentioned, care 
should be used to prevent the plant from ripening 
and re-seeding the land. In some states, notably 
Michigan, vetch has become a nuisance as a weed, 
and is said to have made profitable wheat-growing 
impossible in certain sections. Since it is not pos- 
sible to separate the vetch readily from wheat, the 
latter is ruined for milling purposes. When grown 
only for green forage purposes, the danger is not 
formidable. 
Spring vetch 
The spring vetch or tare (Vicia satwa) may 
be substituted for Canada field peas, in a mix- 
ture with oats; and in the northern states, 
where the pea-louse has been very destructive, 
it serves an excellent purpose. It is sown in 
spring or early summer, and does not survive the 
winter. The preparation of soil should be practi- 
cally the same as that recommended for oats and 
peas. Fertilizers should also be of the same char- 
acter. Experiments indicate that one bushel of 
seed, with one to one and one-half bushels of oats 
per acre makes a good mixture, although the smal- 
ler quantity of oats will be better on good land, as 
