Amino acid chelated magnesium fertilizer and production method thereof

Abstract

The invention discloses an amino acid chelated magnesium fertilizer and a production method thereof. The amino acid chelated magnesium fertilizer comprises, by weight, 55-65 parts of amino acids, 25-35 parts of a soluble magnesium salt, 5-8 parts of carboxymethyl cellulose, 5-12 parts of urea and 4-7 parts of pectin. The carboxymethyl cellulose, pectin and urea are combined according to a specific ratio, so the stability and the chelating rate of the amino acid chelated magnesium fertilizer are improved, the fertilizer has slow release property, the fertilizer efficiency durability is improved, and the yield of crops is increased, thereby the fertilizer can be widely applied to the production of crops.

Description

technical field

[0001] The invention belongs to the technical field of chemical fertilizer production, and in particular relates to an amino acid chelated magnesium fertilizer and a preparation method thereof. Background technique

[0002] Magnesium is a medium and trace element required for the normal growth and development of plants. It is the main mineral element that constitutes chlorophyll. It directly affects the photosynthesis of plants and the synthesis of sugar and protein. Its lack will bring irreparable harm to plant growth. , causing spots and necrosis of plant leaves, affecting plant yield. Therefore, magnesium plays a very important role in plant physiology and economic benefits. In order to supplement the magnesium needed by plants, magnesium-containing fertilizers are generally applied to the soil. The existing magnesium-containing fertilizers are divided into inorganic magnesium fertilizers represented by magnesium sulfate and chelated magnesium fertilizers...

Examples

Embodiment 1

[0031] This embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 60g cysteine, 30g magnesium sulfate, 6.5g carboxymethylcellulose, 8g urea and 5.5g pectin;

[0032] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0033] 1) Weigh 1890g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix well to obtain a mixed solution;

[0034] 2) Chelating the mixed solution at 80°C and pH 6.5 for 6.5 hours;

[0035] 3) Aging the mixed solution treated in step 2) at 55° C. for 18 hours;

[0036] 4) Concentrating the mixed solution after the treatment in step 3), and drying the concentrated solution at 115° C. to obtain the amino acid chelated magnesium fertilizer.

Embodiment 2

[0038] The present embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 57g glycine, 32g magnesium chloride, 6g carboxymethylcellulose, 10g urea and 5g pectin;

[0039] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0040] 1) Weigh 1602g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix evenly to obtain a mixed solution;

[0041] 2) Chelating the mixed solution at 75°C and pH 7 for 8 hours;

[0042] 3) Aging the mixed solution treated in step 2) at 50° C. for 20 h;

[0043] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 130° C. to obtain amino acid chelated magnesium fertilizer.

Embodiment 3

[0045] This embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 63g alanine, 28g magnesium nitrate, 7g carboxymethyl cellulose, 8g urea and 6g pectin;

[0046] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0047] 1) Weigh 2275g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix well to obtain a mixed solution;

[0048] 2) Chelating the mixed solution at 85°C and pH 6 for 9 hours;

[0049] 3) Aging the mixed solution treated in step 2) at 60° C. for 15 hours;

[0050] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 100°C to obtain amino acid chelated magnesium fertilizer.

technical field

[0001] The invention belongs to the technical field of chemical fertilizer production, and in particular relates to an amino acid chelated magnesium fertilizer and a preparation method thereof. Background technique

[0002] Magnesium is a medium and trace element required for the normal growth and development of plants. It is the main mineral element that constitutes chlorophyll. It directly affects the photosynthesis of plants and the synthesis of sugar and protein. Its lack will bring irreparable harm to plant growth. , causing spots and necrosis of plant leaves, affecting plant yield. Therefore, magnesium plays a very important role in plant physiology and economic benefits. In order to supplement the magnesium needed by plants, magnesium-containing fertilizers are generally applied to the soil. The existing magnesium-containing fertilizers are divided into inorganic magnesium fertilizers represented by magnesium sulfate and chelated magnesium fertilizers...

Examples

Embodiment 1

[0031] This embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 60g cysteine, 30g magnesium sulfate, 6.5g carboxymethylcellulose, 8g urea and 5.5g pectin;

[0032] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0033] 1) Weigh 1890g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix well to obtain a mixed solution;

[0034] 2) Chelating the mixed solution at 80°C and pH 6.5 for 6.5 hours;

[0035] 3) Aging the mixed solution treated in step 2) at 55° C. for 18 hours;

[0036] 4) Concentrating the mixed solution after the treatment in step 3), and drying the concentrated solution at 115° C. to obtain the amino acid chelated magnesium fertilizer.

Embodiment 2

[0038] The present embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 57g glycine, 32g magnesium chloride, 6g carboxymethylcellulose, 10g urea and 5g pectin;

[0039] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0040] 1) Weigh 1602g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix evenly to obtain a mixed solution;

[0041] 2) Chelating the mixed solution at 75°C and pH 7 for 8 hours;

[0042] 3) Aging the mixed solution treated in step 2) at 50° C. for 20 h;

[0043] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 130° C. to obtain amino acid chelated magnesium fertilizer.

Embodiment 3

[0045] This embodiment provides a kind of amino acid chelated magnesium fertilizer, is made up of 63g alanine, 28g magnesium nitrate, 7g carboxymethyl cellulose, 8g urea and 6g pectin;

[0046] The preparation method of above-mentioned amino acid chelated magnesium fertilizer, comprises the steps:

[0047] 1) Weigh 2275g of water, and add soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin to it, and mix well to obtain a mixed solution;

[0048] 2) Chelating the mixed solution at 85°C and pH 6 for 9 hours;

[0049] 3) Aging the mixed solution treated in step 2) at 60° C. for 15 hours;

[0050] 4) Concentrating the mixed liquid treated in step 3), and drying the concentrated liquid at 100°C to obtain amino acid chelated magnesium fertilizer.

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