carry out to meet those requirements. Even with the best stock 
seed obtainable and with crop rotation, some roguing of foreign 
plants is required because weeds and other crop seeds may appear as — 
impurities in the stock seed used or volunteer in the field of produc- 
tion. The seed grower must assume the expense of roguing, as he 
does of seed treatment and other refinements if he is to be distin- 
guished as a seed grower instead of merely a multiplier of seed; 
and after years of experience as a seed grower he will realize how im- 
possible it is to produce and distribute perfect seed. He may hope 
and strive, however, to attain a high degree of excellence. 
Hairy Vetch — This is a viny legume well adapted for early fall 
seeding to produce winter cover, green manure or forage. It is 
definitely a cool weather crop and is tolerant to cold weather and 
to drought, doing best on light soils, but also often producing well 
on clay soils if they are well drained. It makes little top growth, 
but produces tremendous root growth in fall and winter and then 
very rapid top growth the following spring. 
The forage from vetch has the highest feeding value of the legumes 
and the plant is a strong gatherer of air nitrogen when properly in- 
oculated and adequately supplied with calcium, phosphorus and 
potash. Each bag of Eastern States vetch seed contains a can of 
inoculant together with directions for its proper use. Anacre of well 
inoculated and fertilized vetch may gather from the air and fix in 
the soil as much as 100 pounds of nitrogen — an amount equivalent 
to the nitrogen in 600 pounds of nitrate of soda. 
Hairy vetch is seldom sown alone because of its viny habit of 
growth, but is commonly fall-sown with wheat or rye for support. 
It should not be used where the rye or wheat is to be harvested for 
grain in a short grain rotation, for some vetch seed is hard enough 
to lie dormant for a year or more in the soil or some may shatter and 
reseed and become a pest in later grain crops. The seeds are round, 
nearly black (yellow inside) and mature in July or August. 
Rye-Vetch Mixture — This is a natural mixture of Selected Rye 
and Hairy Vetch standardized to the proportions of 70 parts of rye to 
30 parts of vetch. It is thoroughly cleaned of all other crop seeds, 
weeds and inert matter and each ingredient is tested to assure high 
germination. 
It is recommended for use in the production of forage, winter 
cover or green manure where it can be seeded early enough for the » 
vetch and where a crop with more protein or with nitrogen gathering 
properties is desired. An early fall seeding of this mixture, which 
may provide pasturage both late in the fall and early in the spring, 
will serve as a cover crop over winter and as a green manure after 
spring grazing. It enriches the soil with free air nitrogen. 
A can of bacteria inoculant for the vetch is included in each bag 
and should be applied to the seed mixture according to directions 
on the can before seeding. 
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