A typical mix at 50-70 lbs/acre: 10 lbs oats, 30 lbs winter rye, 5 lbs purple top turnips, 4 lbs rape, 2 lbs daikon radish. Plant 60-90 days before first frost.
For properties with existing perennial clover, a fall-planted brassica strip alongside acts as a complementary draw. State crop calendars have planting windows; variety reviews recommend specific cultivars for your region.