Reseeding alfalfa following alfalfa is not a recommended crop rotation practice because of autotoxicity, seedling diseases and insect pests that can build up in the old stand. Alfalfa autotoxicity occurs when established alfalfa plants produce toxins that reduce establishment and growth of new alfalfa plants. Autotoxicity can occur when alfalfa is reseeded into an old … Continue reading Alfalfa Autotoxicity […]
