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Multi-element chelated fertilizer and preparation method thereof

A multi-element, mixed-liquid technology, applied in the direction of urea compound fertilizer, nitrogen fertilizer, magnesium fertilizer, etc., can solve the problems of poor stability and low chelation rate of multi-element chelated fertilizers, so as to improve the stability and chelation rate, and improve the chelation rate. Combine rate and ensure the effect of fertilizer efficiency

Inactive Publication Date: 2017-10-24
FUZHOU UNIV ASSET MANAGEMENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the existing multi-element chelated fertilizer to be solved by the present invention has the defects of poor stability and low chelation rate, and then provides a multi-element chelated fertilizer with good stability, high chelation rate, high absorption rate and fertilizer efficiency, and balanced nutrition. Hefei and its preparation method

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  • Multi-element chelated fertilizer and preparation method thereof
  • Multi-element chelated fertilizer and preparation method thereof

Examples

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Embodiment 1

[0034] The present embodiment provides a kind of multi-element chelate fertilizer, by 45g cysteine, 8g magnesium sulfate, 5g ferrous chloride, 7g zinc sulfate, 12g calcium nitrate, 4g manganese nitrate, 6.5g carboxymethyl cellulose, 8g Composed of urea and 5.5g pectin;

[0035] The preparation method of above-mentioned multi-element chelated fertilizer comprises the steps:

[0036] 1) dissolving the above-mentioned soluble metal salt, amino acid, carboxymethyl cellulose, urea and pectin in water to obtain a mixed solution, wherein the mass fraction of the amino acid in the mixed solution is guaranteed to be 20%;

[0037] 2) Chelating the mixed solution at 80°C and pH 6.5 for 6.5 hours;

[0038] 3) Aging the mixed solution treated in step 2) at 55° C. for 18 hours;

[0039] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 115° C. to obtain a multi-element chelated fertilizer.

Embodiment 2

[0041] This embodiment provides a kind of multi-element chelate fertilizer, is made of 44g glycine, 8g magnesium nitrate, 4g ferrous nitrate, 7g zinc chloride, 12g calcium nitrate, 5g manganese sulfate, 6g carboxymethyl cellulose, 10g urea and 5g fruit glue composition;

[0042] The preparation method of above-mentioned multi-element chelated fertilizer comprises the steps:

[0043] 1) dissolving the above-mentioned soluble metal salt, amino acid, carboxymethyl cellulose, urea and pectin in water to obtain a mixed solution, wherein the mass fraction of the amino acid in the mixed solution is guaranteed to be 15%;

[0044] 2) Chelating the mixed solution at 75°C and pH 7 for 8 hours;

[0045] 3) Aging the mixed solution treated in step 2) at 50° C. for 20 h;

[0046] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 130°C to obtain a multi-element chelated fertilizer.

Embodiment 3

[0048] The present embodiment provides a kind of multi-element chelate fertilizer, by 46g alanine, 7g magnesium sulfate, 5g ferrous chloride, 6g basic zinc sulfate, 13g calcium chloride, 4g manganese nitrate, 7g carboxymethyl cellulose, Composed of 8g urea and 6g pectin;

[0049] The preparation method of above-mentioned multi-element chelated fertilizer comprises the steps:

[0050] 1) dissolving the above-mentioned soluble metal salt, amino acid, carboxymethyl cellulose, urea and pectin in water to obtain a mixed solution, wherein the mass fraction of the amino acid in the mixed solution is guaranteed to be 25%;

[0051] 2) Chelating the mixed solution at 85°C and pH 6 for 9 hours;

[0052] 3) Aging the mixed solution treated in step 2) at 60° C. for 15 hours;

[0053] 4) Concentrating the mixed solution treated in step 3), and drying the concentrated solution at 100° C. to obtain a multi-element chelated fertilizer.

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Abstract

The invention discloses a multi-element chelated fertilizer and a preparation method thereof. The multi-element chelated fertilizer is prepared from the following raw materials in parts by weight: 40-50 parts of amino acid, 5-10 parts of soluble magnesium salt, 3-6 parts of soluble ferric salt, 5-8 parts of soluble zinc salt, 10-15 parts of soluble calcium salt, 3-6 parts of soluble manganese salt, 5-8 parts of carboxymethylcellulose, 5-12 parts of urea and 4-7 parts of pectin. By matching carboxymethylcellulose, pectin and urea in a special proportion in use, the stability and chelating rate of the multi-element chelated fertilizer are improved, and meanwhile, the fertilizer also has slow release property, the durability of fertilizer efficiency is improved and the output of crops is increased. Therefore, the fertilizer can be widely applied to crop production.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizer production, and in particular relates to a multi-element chelated fertilizer and a preparation method thereof. Background technique [0002] During the growth process of plants, in addition to a large amount of nitrogen, phosphorus, and potassium, they also need a certain amount of trace elements. If these trace elements are lacking, plants cannot grow normally. The solution to this problem is to apply medium and micro fertilizers. In the case of normal application of nitrogen, phosphorus and potassium, adding fertilizers containing one or more trace elements can balance the elements needed by crops and prevent and control physiological diseases caused by deficiencies. Most of the medium and trace elements used in my country exist in the form of divalent metal ions. Once they are applied to the soil and plants, because of the presence of negative divalent carbonates in the soil and pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05C5/00C05G3/00C05C5/04C05C9/00C05C11/00C05D5/00C05D9/02C05D3/00
Inventor 江莉龙丁音琴林性贻詹瑛瑛
Owner FUZHOU UNIV ASSET MANAGEMENT CO LTD
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