Chelated multielement medium-trace-element spraying fertilizer and preparation method thereof

A technology for chelating trace elements and medium and trace elements, which is applied in the direction of organic fertilizers, inorganic fertilizers, fertilization devices, etc., can solve the problems of lack of medium and trace elements, crop impact, and lack of due attention, so as to promote synthesis and promote Effects on growth and promotion of mass reproduction

CN109574770AInactive Publication Date: 2019-04-05江苏心实肥业集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-04-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses chelated multielement medium-trace-element spraying fertilizer and a preparation method thereof. The chelated multielement medium-trace-element spraying fertilizer comprises, by weight, 40-60 parts of EDTA (ethylene diamine tetraacetic acid) chelated zinc, 40-60 parts of instant boron, 16-24 parts of EDTA chelated manganese, 32-48 parts of compound EDTA chelated trace elements, 19.2-28.8 parts of mineral fulvic acid and 176-264 parts of magnesium sulfate monohydrate. The chelated multielement medium-trace-element spraying fertilizer can provide crops with various mediumtrace elements needed for growth, enhance crop resistance, increase crop yield and increase crop activity; the chelated medium trace elements do not react with substances such as phosphate radicals and sulfate radicals in the soil, and accordingly, soil hardening can be reduced; the mineral fulvic acid can promote photosynthesis of the crops and improve soil nutrients and fertility.
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Description

technical field

[0001] The invention relates to a chelated multi-component trace element spraying fertilizer and a preparation method thereof, belonging to the technical field of fertilizer production. Background technique

[0002] As an important part of the primary industry, agriculture is closely related to people's lives. Due to the huge population base and limited usable land area, coupled with urbanization, land pollution and other issues, people increase the crop yield by expanding the planting area with poor efficiency and high consumption. The correct way is to increase the output per unit planting area of ​​crops . Fertilization can not only improve soil fertility, but also an important measure to increase crop yield per unit area. Fertilizer is the most basic and most important material input in agricultural production. According to statistics from the Food and Agriculture Organization of the United Nations, chemical fertilizers account for about 40% to 60% of ...

Examples

Embodiment 1

[0041] A chelated multi-trace element spraying fertilizer is characterized in that it is made of the following raw materials in parts by weight: 40 parts of EDTA chelated zinc, 40 parts of instant boron, 16 parts of EDTA chelated manganese, and compound EDTA chelated trace elements 32 parts, 19.2 parts of mineral source fulvic acid, 176 parts of magnesium sulfate monohydrate.

[0042] Described EDTA chelated zinc is prepared according to the following method:

[0043] (1) Add disodium EDTA, basic zinc carbonate and zinc nitrate hexahydrate to dissolve in water, heat up to 70° C., and filter out insoluble impurities after reacting for 1 hour; the disodium EDTA, basic zinc carbonate and The mol ratio of zinc nitrate hexahydrate is 1: 0.8: 0.2;

[0044](2) Concentrate the filtrate in step (1), centrifuge when a large amount of crystals appear, dry and grind the separated crystals to obtain the finished product EDTA chelated zinc.

[0045] Described EDTA chelated manganese is pr...

Embodiment 2

[0069] A chelated multi-component trace element spraying fertilizer is characterized in that it is made of the following raw materials in parts by weight: 50 parts of EDTA chelated zinc, 50 parts of instant boron, 20 parts of EDTA chelated manganese, and compound EDTA chelated trace elements 40 parts, 24 parts of mineral source fulvic acid, 220 parts of magnesium sulfate monohydrate.

[0070] Described EDTA chelated zinc is prepared according to the following method:

[0071] (1) Add disodium EDTA, basic zinc carbonate and zinc nitrate hexahydrate to dissolve in water, heat up to 70° C., and filter out insoluble impurities after reacting for 1 hour; the disodium EDTA, basic zinc carbonate and The mol ratio of zinc nitrate hexahydrate is 1: 0.8: 0.2;

[0072] (2) Concentrate the filtrate in step (1), centrifuge when a large amount of crystals appear, dry and grind the separated crystals to obtain the finished product EDTA chelated zinc.

[0073] Described EDTA chelated mangan...

Embodiment 3

[0097] A chelated multi-component trace element spraying fertilizer is characterized in that it is made of the following raw materials in parts by weight: 60 parts of EDTA chelated zinc, 60 parts of instant boron, 24 parts of EDTA chelated manganese, and compound EDTA chelated trace elements 48 parts, 28.8 parts of mineral source fulvic acid, 264 parts of magnesium sulfate monohydrate.

[0098] Described EDTA chelated zinc is prepared according to the following method:

[0099](1) Add disodium EDTA, basic zinc carbonate and zinc nitrate hexahydrate to dissolve in water, heat up to 70° C., and filter out insoluble impurities after reacting for 1 hour; the disodium EDTA, basic zinc carbonate and The mol ratio of zinc nitrate hexahydrate is 1: 0.8: 0.2;

[0100] (2) Concentrate the filtrate in step (1), centrifuge when a large amount of crystals appear, dry and grind the separated crystals to obtain the finished product EDTA chelated zinc.

[0101] Described EDTA chelated manga...