Inoculant for Alfalfa & Clover Seed | Organic N-DURE Inoculant OMRI, Organic Inoculant for plant health and nitrogren fixing. Seed Inoculant for: Alfalfa and Clover 6 Ounces treats 50 lbs. of garden seed. Trusted source and always viable inoculant for the garden. Increase nitrogen fixing and health of soil.