organic-inorganic polymeric water retention fertilizer, and method for preparing an organic-inorganic polymeric water retention fertilizer

摘要

the present invention provides an organic-inorganic polymeric water retention fertilizer. The organic-inorganic polymeric water retention fertilizer is a copolymer made by melting and copolymerizing an organic water retention monomer and an inorganic nutrient under the action of a catalyst, a biological enzyme and a modifying agent. the copolymer is a three-dimensional network type hydrophilic group structure. in a method to prepare the organic-inorganic polymeric water retention fertilizer, after obtaining a neutralized prepolymer from the monomer organic water retainer under the action of the catalyst, an initiator and a crosslinking agent are added; the inorganic nutrient and a metasilicate are added at the same time, a solution is formed by stirring sufficiently; the biological enzyme is added for catalysis; a copolymer is obtained after melting and copolymerization; and granulation and drying are carried out. preferably, the catalyst is an inorganic alkaline solution. preferably, the catalyst is selected from the group consisting of a sodium hydroxide solution, a potassium hydroxide solution, an ammonia water and a calcium hydroxide solution.