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Multiple nutrient water-soluble solid composite chelate fertilizer and its preparation method

A water-soluble, solid technology, applied in the direction of urea compound fertilizer, alkaline orthophosphate fertilizer, nitrogen fertilizer, etc., can solve the problems of solubility limitation, incompatibilities, incompatibilities, etc., achieve less residue, prevent secondary salinization, The effect of reducing leaching loss

Active Publication Date: 2006-04-26
INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two fertilizers are limited by their solubility, so they cannot be used with spray and drip irrigation equipment, and cannot be used as spray and drip irrigation fertilizers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1. The components of the multi-nutrient water-soluble solid composite chelate fertilizer are as follows, all by weight:

[0072] 18 parts of monoammonium phosphate, 31 parts of urea, 25 parts of potassium chloride, 1.5 parts of magnesium chloride, 0.1 parts of copper sulfate, 0.2 parts of zinc sulfate, 0.3 parts of ferrous sulfate, 0.1 parts of manganese sulfate, 0.3 parts of boric acid, 2.0 parts of calcium citrate , 1.5 parts of complex chelating agent, 5 parts of acidity regulator, 15 parts of ammonium chloride. The crystal nucleus material is a 2:1 mixture of ammonium chloride and potassium chloride, which accounts for 5% by weight of the total amount of the above components. The composition of the composite chelating agent is a combination of acetic acid, dimeric aspartic acid, and phytate in a weight ratio of 1:0.6:0.3. The composition of the acidity regulator is a combination of phosphoric acid and citric acid in a weight ratio of 2:1.

[0073] The preparatio...

Embodiment 2

[0075] Example 2. As described in Example 1, the difference is that the components are as follows, all by weight:

[0076] 15 parts of monoammonium phosphate, 38 parts of urea, 18 parts of potassium chloride, 0.5 part of magnesium chloride, 0.1 part of copper sulfate, 0.3 part of zinc sulfate, 0.2 part of ferrous sulfate, 0.1 part of manganese sulfate, 0.2 part of boric acid, 2.1 part of calcium citrate , 2 parts of complex chelating agent, 4 parts of acidity regulator, 19.5 parts of ammonium chloride. The crystal nucleus material is a 2:1 mixture of ammonium chloride and potassium chloride, which accounts for 6% by weight of the total amount of the above components. The composition of the composite chelating agent is a combination of acetic acid, dimeric aspartic acid, and phytate in a weight ratio of 1:0.5:0.3. The composition of the acidity regulator is a combination of phosphoric acid and citric acid in a weight ratio of 3:1.

Embodiment 3

[0077] Example 3. As described in Example 1, the difference is that the components are as follows, all in parts by weight:

[0078] 10 parts of monoammonium phosphate, 30 parts of urea, 28 parts of potassium chloride, 2.5 parts of magnesium chloride, 0.2 parts of copper sulfate, 0.2 parts of zinc sulfate, 0.5 parts of ferrous sulfate, 0.05 parts of manganese sulfate, 0.25 parts of boric acid, 2.5 parts of calcium citrate , 2.5 parts of complex chelating agent, 6 parts of acidity regulator, 17.3 parts of ammonium chloride. The crystal nucleus material is a 2:1 mixture of ammonium chloride and potassium chloride, which accounts for 5% by weight of the total amount of the above components. The composition of the composite chelating agent is a combination of acetic acid, dimeric aspartic acid, and phytate in a weight ratio of 1:0.5:0.2. The acidity regulator is composed of phosphoric acid and citric acid in a weight ratio of 2.5:1.

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PUM

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Abstract

The present invention is multiple-nutrient water soluble solid composite chelated fertilizer and belongs to the field of agricultural fertilizer technology. It is prepared with the components, including monoammonium phosphate, urea, potassium chloride, magnesium chloride, copper sulfate, zinc sulfate, ferrous sulfate, manganese sulfate, boric acid, calcium citrate, composite chelating agent, pH regulator and ammonium chloride, and through chelating reaction in reaction tank at 110-115 deg.c, concentration and crystallization, high pressure exhausting and cooling crystallization. The fertilizer may be applied through drip irrigation, and has greatly raised utilization, less environmental pollution and capacity of raising agricultural product quality.

Description

Technical field [0001] The invention relates to a multi-nutrient water-soluble solid composite chelate fertilizer and a preparation method thereof, and belongs to the technical field of agricultural fertilizers. Background technique [0002] The growth and development of crops require large, medium and trace elements. Except for a small amount of these nutrients that can be supplied by soil, air and water, most of them need to be replenished by fertilization. Conventional fertilizer products are mostly a single nutrient element or a small amount of several nutrient element compound products, and it is difficult to fully supplement the nutrients required for the growth and development of crops. Only through multiple applications of different fertilizer products can a balanced nutrient supply of crops be ensured. This increases the waste of resources, energy and labor in the production, circulation, and application of fertilizers. At the same time, it increases the difficulty of fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05B7/00C05C9/00C05D1/02C05D9/00
Inventor 李彦高贤彪卢丽萍杨果崔荣宗董晓霞徐长英张丽华
Owner INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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