Hairy vetch will grow on a wide range of soil types and grows better than crimson clover on extremely sandy soils. However, hairy vetch is not used frequently because it becomes a pest in cereals grown for grain, and other legumes offer more potential.
Luginbuhl, J-M. 2006. Pastures for Meat Goats. In: Meat Goat Production Handbook, ed. T.A. Gipson, R.C. Merkel, K. Williams, and T. Sahlu, Langston University, ISBN 1-880667-04-5.