Sustained release biological medicinal fertilizer
A biomedical fertilizer and slow-release technology, which is applied to biocides, chemicals for biological control, nitrogen fertilizers, etc., can solve the problems of only about two months, short shelf life of medicinal fertilizers, and reduced efficacy. The effect of reducing irrigation times, increasing effective utilization rate, and improving stress resistance
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[0023] A preparation method of slow-release biomedical fertilizer, comprising the following steps:
[0024] Preparation of winter melon rind extract: In terms of parts by mass, take 30-40 parts of wax gourd rind, pulverize it with a pulverizer, extract it with absolute ethanol at a mass ratio of 1:2 for 2.5-3 hours at 20-25°C, and reduce Recover ethanol by pressure distillation to obtain extract, take extract, extract with ethyl acetate to obtain crude extract, and recover ethyl acetate by vacuum distillation to obtain wax gourd peel extract;
[0025] (1) In terms of parts by mass, the raw materials include: 30~45 parts of polyaspartic acid compound, 5~10 parts of borax, 25~40 parts of urea, 7~15 parts of polyoxyethylene ether trisiloxane, 5 ~12 parts of hyaluronic acid, 15~20 parts of zinc chloride or copper chloride, 10~20 parts of potassium chloride, 6~13 parts of triadimenol, 6~10 parts of polyacrylamide, 5~12 parts of ethylene-acetic acid Ethylene copolymer, 12~18 parts ...
Embodiment 1
[0031] Ethylene-vinyl acetate copolymer: purchased from Shenghong Petrochemical Group Co., Ltd.
[0032] Polyoxyethylene ether trisiloxane: purchased from Guangzhou Flower King Chemical Co., Ltd.
[0033] Polyaspartic acid: purchased from Sichuan Tongsheng Amino Acid Co., Ltd.
[0034] A preparation method of slow-release biomedical fertilizer, comprising the following steps:
[0035] Preparation of wax gourd rind extract: In terms of parts by mass, take 30 parts of wax gourd rind, pulverize with a pulverizer, extract with absolute ethanol at a mass ratio of 1:2 at 20°C for 2.5 hours, and recover ethanol by distillation under reduced pressure. To obtain the extract, take the extract, extract with ethyl acetate to obtain a crude extract, and distill under reduced pressure to recover the ethyl acetate to obtain the wax gourd peel extract;
[0036] (1) In parts by mass, the raw materials include: 30 parts of polyaspartic acid compound, 5 parts of borax, 25 parts of urea, 7 part...
Embodiment 2
[0042] Ethylene-vinyl acetate copolymer: purchased from Shenghong Petrochemical Group Co., Ltd.
[0043] Polyoxyethylene ether trisiloxane: purchased from Guangzhou Flower King Chemical Co., Ltd.
[0044] Polyaspartic acid: purchased from Sichuan Tongsheng Amino Acid Co., Ltd.
[0045] A preparation method of slow-release biomedical fertilizer, comprising the following steps:
[0046] Preparation of wax gourd rind extract: In terms of parts by mass, 40 parts of wax gourd skin were taken, pulverized by a pulverizer, extracted with absolute ethanol for 3 hours at a mass ratio of 1:2 at 25°C, and the ethanol was recovered by vacuum distillation to obtain Extract, take the extract, extract with ethyl acetate to obtain a crude extract, and distill under reduced pressure to recover the ethyl acetate to obtain the wax gourd peel extract;
[0047] (1) In terms of parts by mass, the raw materials include: 45 parts of polyaspartic acid compound, 10 parts of borax, 40 parts of urea, 15...
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