Sustained-release microbial compound fertilizer and preparation method thereof
A compound fertilizer and microorganism technology, which is applied in the field of slow-release microbial compound fertilizer and preparation, can solve the problems of difficulty in mass production, heavy air pollution, large space occupation, etc. Effect
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[0032] The invention provides a slow-release microbial compound fertilizer and a preparation method. The slow-release microbial compound fertilizer has high fertilizer efficiency, ecological safety, simple preparation process and low cost, and is suitable for large-scale production.
[0033] A slow-release microbial compound fertilizer provided according to one aspect of the present invention comprises a fertilizer core and a coating coated on the outside of the fertilizer core, the parts by weight of the fertilizer core and the coating layer are respectively: 160 parts of the fertilizer core, 3-5 parts of the coating layer;
[0034] The parts by weight of the fertilizer core are: 8-25 parts of polyacrylamide, 5-10 parts of tryptophan, 5-10 parts of tryptophan, 5-10 parts of threonine, 2-7 parts of sodium trimetaphosphate , 3-8 parts of sodium tripolyphosphate, 3-5 parts of EDTA, 50-60 parts of microbial complex;
[0035] The coating layer includes the following components by...
Embodiment 1
[0060] A slow-release microbial compound fertilizer provided in one aspect of this embodiment includes a fertilizer core and a coating coated on the outside of the fertilizer core, the parts by weight of the fertilizer core and the coating layer are respectively: 160 parts of the fertilizer core, 3-5 parts of the coating layer;
[0061] The parts by weight of the fertilizer core are: 25 parts of polyacrylamide, 5 parts of tryptophan, 10 parts of tryptophan, 5 parts of threonine, 7 parts of sodium trimetaphosphate, 3 parts of sodium tripolyphosphate, and 5 parts of EDTA , 50 parts of microbial complex;
[0062] The coating layer includes the following components by weight: 6 parts of gelatin, 1 part of polyvinyl alcohol, 40 parts of urea, 5 parts of ferrous sulfate, 25 parts of zinc sulfate, 3 parts of rice straw, 25 parts of high polychitosan parts, 30 parts of water.
[0063] The preparation method of the coating layer is as follows:
[0064] (1) Crush rice straw, add 1-2 ...
Embodiment 2
[0076] A slow-release microbial compound fertilizer provided in one aspect of this embodiment includes a fertilizer core and a coating coated on the outside of the fertilizer core, the parts by weight of the fertilizer core and the coating layer are respectively: 160 parts of the fertilizer core, 3-5 parts of the coating layer;
[0077] The parts by weight of the fertilizer core are: 8 parts of polyacrylamide, 10 parts of tryptophan, 5 parts of tryptophan, 10 parts of threonine, 2 parts of sodium trimetaphosphate, 8 parts of sodium tripolyphosphate, and 3 parts of EDTA , 60 parts of microbial complex;
[0078] The coating layer includes the following components by weight: 2 parts of gelatin, 6 parts of polyvinyl alcohol, 20 parts of urea, 25 parts of ferrous sulfate, 5 parts of zinc sulfate, 5 parts of rice straw, 15 parts of high polychitosan parts, 55 parts of water.
[0079] The preparation method of the coating layer is as follows:
[0080] (1) Crush rice straw, add 2 t...
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