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Multi-element soluble chelating fertilizer and process for preparing same

A chelated fertilizer, soluble technology, applied in the direction of urea compound fertilizer, alkaline orthophosphate fertilizer, inorganic fertilizer, etc., can solve the problems of fertilizer loss of absorbability, utilization, soil and groundwater pollution, poor water solubility, etc., to achieve beneficial The effect of large-scale promotion, improvement of yield and quality, and reduction of fertilizer consumption

Inactive Publication Date: 2007-04-25
朱丙臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current domestic fertilizers have the following problems: 1. Poor water solubility, especially for medium and trace element fertilizers. 2+ 、Cu 2+ , Ca 2+ , Mg, Mn 2+ 、Mo 2+ When other metal ions meet PO 4 -3 It is easy to generate insoluble phosphate, so that the fertilizer loses its absorbability and utilization
2. The cost is too high. If EDTA is used as a chelating agent, the water solubility of the fertilizer can be improved, but the cost of fertilizer per ton needs to increase by about 2000 yuan, which is not practical and is not conducive to popularization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] formula

[0024] 10 parts of urea, 10 parts of diammonium phosphate, 10 parts of potassium chloride, 0.4 parts of sodium edetate, 0.2 parts of boric acid; 0.2 parts of manganese chloride, 0.2 parts of calcium chloride, 0.2 parts of magnesium sulfate, 0.2 parts of ferrous sulfate 0.2 parts of zinc sulfate, 0.2 parts of copper sulfate, 2 parts of amino acid aqueous solution.

[0025] Preparation steps:

[0026] (1) Dissolve urea in water in proportion, adjust the pH value to 5-5.5 with hydrochloric acid, add it to the reaction kettle, then add magnesium sulfate and calcium chloride and stir evenly, heat at 60-65°C, keep it sealed for 1-1.5 hours, and finally Stir and heat to remove moisture, close the kettle to cool, pulverize and pass through a 100-mesh sieve to make a raw material for later use;

[0027] (2) Add amino acid aqueous solution, ferrous sulfate, zinc sulfate, and copper sulfate to the reaction kettle in proportion and stir evenly, stir and heat at 90-110°C...

Embodiment 2

[0031] formula

[0032] 40 parts of urea, 40 parts of diammonium phosphate, 30 parts of potassium chloride, 4 parts of sodium edetate, 1 part of boric acid; 2 parts of manganese chloride, 2 parts of calcium chloride, 2 parts of magnesium sulfate, 2 parts of ferrous sulfate 2 parts, 2 parts of zinc sulfate, 2 parts of copper sulfate, 15 parts of amino acid aqueous solution;

[0033] The preparation steps are the same as in Example 1.

Embodiment 3

[0035] formula

[0036] 15 parts of urea, 15 parts of diammonium phosphate, 15 parts of potassium chloride, 1.5 parts of sodium edetate, 0.4 parts of boric acid; 0.5 parts of manganese chloride, 0.5 parts of calcium chloride, 0.5 parts of magnesium sulfate, 0.5 parts of ferrous sulfate 0.5 part of zinc sulfate, 0.5 part of copper sulfate, 3 parts of amino acid aqueous solution;

[0037] The preparation steps are the same as in Example 1.

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PUM

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Abstract

The invention discloses a multielement soluble chelating fertilizer and preparing method, which comprises the following parts: 10-40% aquacare, 10-40% diamine phosphate, 10-30% potassium chloride, 0.1-1% disodium ethylene diamine tetraaceticate, 0.2-1% boracic acid, 0.2-2% manganese chloride, 0.2-8% calcium chloride, 0.2-8% magnesium sulfate, 0.2-2% ferrous sulfate, 0.2-2% zinc sulfate, 0.2-2% copper sulfate and 2-15% amino acid solution.

Description

Technical field: [0001] The invention relates to a fertilizer containing chelated micro-fertilizer, in particular to a multi-element soluble fertilizer containing chelated micro-fertilizer and a preparation method thereof. technical background: [0002] With the change of rural economic structure, my country's agricultural fertilization has gradually changed from blind fertilization and empirical fertilization to scientific and balanced fertilization. Especially in recent years, the high-yield, high-quality, and high-efficiency grain, fruit, and vegetable cultivation systems (such as greenhouse vegetable cultivation, fertilizer-water coupling supply under fruit, vegetable, and grass sprinkler irrigation and other cultivation measures) have posed new challenges to nutrient supply and demand technologies. Issues such as sustainable agricultural development and environmental protection put forward more precise and accurate requirements for fertilization technology and applicabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05C9/00C05B7/00C05D1/02C05D9/02
Inventor 朱丙臣王学文
Owner 朱丙臣
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