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Organic, inorganic and microbe compound fertilizer for rice production and preparation method thereof

The invention belongs to the technical field of rice fertilizer, and particularly relates to organic, inorganic and microbe compound fertilizer for rice production and a preparation method of the organic, inorganic and microbe compound fertilizer for the rice production. The organic, inorganic and microbe compound fertilizer for the rice production mainly solves the problems that poor symbiosis environment, poor biological activity and low fertilizer efficiency exist in existing compound fertilizer. The technical scheme of the organic, inorganic and microbe compound fertilizer for the rice production is characterized in that the organic, inorganic and microbe compound fertilizer for the rice production is composed of the following ingredients, by weight, 24%-40% of inorganic fertilizer, 40%-56% of organic fertilizer and 15%-25% of biological agents. The organic, inorganic and microbe compound fertilizer for the rice production centralizes the advantages of the organic fertilizer, the inorganic fertilizer and microbes, has lower product price than chemical fertilizer, improves the yield, stress resistance, disease resistance and quality of rice, decomposes poisonous and harmful substances, reduces the degree of soil hardening, and improves the ecological environment of soil.
Owner:YANGQUAN LANDING BIOTECH

Preparation method of ultrahigh-flux composite nanofiltration membrane

The invention discloses a preparation method of an ultrahigh-flux composite nanofiltration membrane. The preparation method comprises the following steps: blending hyperbranched polyester molecules with a special molecular structure and piperazine molecules to obtain a composite water-phase monomer solution with synergistic reaction capacity, and then carrying out controllable interfacial polymerization reaction on the composite water-phase monomer solution and multi-element acyl chloride on a support layer, and forming an active separation layer with a special structure and function. The introduction of hyperbranched polyester molecules controls the polymerization reaction of piperazine and multi-element acyl chloride by influencing the interface characteristics on one hand, and enables a large number of primary hydroxyl groups contained on the molecular surface to participate in polymerization on the other hand; therefore, a two-branch circular structure and nano-scale pore channels in molecules are anchored in an active separation layer in a covalent bond manner, so that the ultra-thin and smooth ultra-high-flux composite nanofiltration membrane with strong permeation selectivity is generated. The method is simple and convenient to operate, low in cost, wide in raw material source and easy to realize industrial production.
Owner:HEBEI UNIV OF TECH
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