EXISTING METHODS FOR PRODUCING PHOSPHORUS-CONTAINING FERTILIZERS

Phosphate salts of calcium, ammonium, magnesium, etc., obtained by processing natural phosphate raw materials, are usually used as phosphorus-containing fertilizers. Known are single-component fertilizers based on calcium phosphate salts (simple, enriched and double superphosphates, thermal phosphates) and complex fertilizers based on ammonium and calcium phosphates.