Preparation method of high-viscosity attapulgite suitable for high-nitrogen low-phosphorus low-potassium compound fertilizer

The invention relates to the technical field of attapulgite preparation, and discloses a preparation method of high-viscosity attapulgite for a high-nitrogen, low-phosphorus and low-potassium compound fertilizer. Comprising the following raw materials in parts by weight: 30-35 parts of compound fertilizer particles, 25-30 parts of attapulgite clay mineral, 10-15 parts of a film-forming agent, 20-30 parts of magnesium oxide, 10-20 parts of a binder, 5-10 parts of a plastic additive and a proper amount of water, the plastic additive is an antioxidant and a mildew inhibitor, and the film-forming agent is a bio-based film-forming agent. According to the preparation method of the high-viscosity attapulgite applicable to the high-nitrogen, low-phosphorus and low-potassium compound fertilizer, the adopted preparation process is simplified, so that the attapulgite is easy to obtain, the prepared high-viscosity attapulgite is not easy to rot by adopting the antioxidant and the mildew preventive, the storage life of th