If establishment of a berseem that is optimum stand for green manure is most significant, oat or any other little grain crop seeded at about 1 bushel per acre will protect the young clover which help to split the soil crust. If very early forage before green manuring could be the objective, seed a mixture of 4 bu. oats and 15 lb. berseem/A. If biomass quantity is most important, make use of shortstalked, long-season oat. The same, but select a short-season, tall variety to reduce the likelihood of berseem clover interfering with grain harvest (156) if oat grain production is primary, keep oat seeding rate.