A kind of liquid compound fertilizer and its preparation method and application

A compound fertilizer, liquid technology, applied in liquid fertilizer, application, phosphate fertilizer and other directions, can solve the problems of nitrogen and organic nutrient loss, and achieve the effect of reducing volatilization loss, cost, and volatilization loss.
CN110194692BActive Publication Date: 2021-10-26SHANGHAI ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI ACAD OF AGRI SCI
Publication Date
2021-10-26

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Abstract

The invention discloses a liquid compound fertilizer and a preparation method and application thereof. The liquid compound fertilizer comprises the following components and parts by weight: 10-50 parts of urea, 10-40 parts of potassium dihydrogen phosphate, potassium chloride or potassium sulfate 10 to 40 parts, 1 to 10 parts of polyglutamic acid, 1 to 5 parts of boric acid, and 100 parts of aquaculture wastewater. The liquid compound fertilizer disclosed in the present invention has low cost and simple preparation method, and can significantly improve the yield of grain crops and green leafy vegetables.
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Description

technical field

[0001] The invention belongs to the field of fertilizers, in particular to a liquid compound fertilizer utilizing breeding wastewater. Background technique

[0002] With the rapid development of animal husbandry and aquaculture in my country, a large amount of aquaculture wastewater is produced, which poses a serious threat to the atmospheric environment of water bodies. But from a biological point of view, aquaculture wastewater is a nutrient solution rich in nitrogen and phosphorus, rich in nitrogen, phosphorus, and potassium, and the biogas slurry even contains various amino acids, vitamins, proteins, and vitamin B12. Reasonable utilization of resources is of great significance. Studies have shown that the reasonable return of biogas slurry and blister manure to the field can improve soil fertility and buffering capacity, and promote the balanced growth of soil microorganisms; biogas slurry can also inhibit and kill pathogenic bacteria and insect pests. ...

Claims

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