for agriculture, ,antibiotic, antibacterial, ,fertilizer etc . Agricultural ChitosanCharacter:Off-white, innocuous, flavorless, pearly color schistic or powdery, ... can be used in different of periods the seedlings, buds, bearings, known as not a pesticide, but a pesticide" and "not ... , can inhibit and kill the harmful bacterium, improve animals immunity. Agricultural grade chitosan