Preparation method of controlled-release compound fertilizer

A slow-release compound fertilizer and chelating agent technology, applied in the preparation of organic fertilizers, urea compound fertilizers, nitrogen fertilizers, etc., can solve the problems of fertilizer loss, fertilizer waste, etc., and achieve the effects of being fat and wide, accelerating plant growth, and enhancing taste.
CN108558489AInactive Publication Date: 2018-09-21金华市飞凌生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
金华市飞凌生物科技有限公司
Publication Date
2018-09-21
Estimated Expiration
Not applicable · inactive patent
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Abstract

The invention discloses a preparation method of controlled-release compound fertilizer. The controlled-release compound fertilizer is prepared from, by weight, 20-30 parts of urea, 20-30 parts of fermentation liquid, 40-55 parts of monopotassium phosphate, 5-10 parts of surfactant, 8-15 parts of chelating agent, 0.02-0.05 part of plant growth regulator and 0.4-1.0 part of cetostearyl alcohol, wherein the fermentation liquid is obtained by linked glycolysis of an EM fungicide and neutral protease. The fertilizer has the advantages that the controlled-release compound fertilizer contains not only major elements including nitrogen, phosphorus and potassium but also abundant weight elements, trace elements and various amino acids, can meet the growth demands of plants, improves the activity of5-aminolevulinic acid dehydratase and uroporphyrinogen III synthase in leaf surface cells, increases the synthesis rate of chlorophyll, promotes photosynthesis and accelerates the growth of the plants.
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Description

technical field

[0001] The invention relates to the field of fertilizer preparation, in particular to a preparation method of slow-release compound fertilizer. Background technique

[0002] Chemical fertilizers are fertilizers used in existing agriculture. Since the macronutrient elements nitrogen, phosphorus, and potassium in the soil usually cannot meet the needs of crop growth, it is necessary to use chemical fertilizers containing nitrogen, phosphorus, and potassium to supplement them. In the micronutrient elements, except chlorine, which is not lacking in the soil, other nutrients need to be applied with trace element fertilizers. Any chemical fertilizer that contains only one nutrient element that can indicate the content is called a unit fertilizer, such as nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, etc. Any chemical fertilizer that contains two or more of the three nutritional elements nitrogen, phosphorus, and potassium and whose content can ...

Claims

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