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Nitrogen-free high-calcium water-soluble fertilizer and preparation method thereof

A water-soluble fertilizer and high-calcium technology, applied in the direction of magnesium fertilizer, organic fertilizer, liquid fertilizer, etc., can solve the problems of instability, low concentration, poor solubility of calcium source, etc., achieve good adhesion and avoid antagonism between elements Effect

Inactive Publication Date: 2020-11-24
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention aims to solve the problems that the poor solubility of the existing calcium source leads to the instability of the product and the instability of storage, and the use of soluble salts to obtain relatively low concentration of calcium, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) First, add 62 parts of calcium formate to 30 parts of deionized water, stir for 30 minutes at a stirring rate of 1000 rpm, and control the temperature at 50° C. to obtain a uniformly dispersed calcium formate solution A;

[0026] (2) Next, add 1 part of boric acid, 0.5 part of EDTA-Fe, 0.5 part of EDTA-Zn, 0.5 part of EDTA-Mn, 0.5 part of EDTA-Cu, and 2 parts of calcium to the calcium formate solution A prepared in step (1). Sodium dialkylbenzene sulfonate, 2 parts of sodium lignosulfonate, 1 part of organic bentonite, and then stirred at a stirring rate of 1000 rpm for 60 minutes to prepare calcium formate composite solution B;

[0027] (3) The calcium formate composite solution B obtained in step (2) is grinded by a colloid mill or a planetary mill for 30 minutes, then the material is collected, and finally a nitrogen-free high-calcium water-soluble fertilizer is prepared.

[0028] After testing, the prepared nitrogen-free high-calcium water-soluble fertilizer has a visc...

Embodiment 2

[0030] (1) First, add 62 parts of calcium acetate to 30 parts of deionized water, stir for 60 minutes at a stirring rate of 1000 rpm, and control the temperature at 50° C. to obtain a uniformly dispersed calcium acetate solution A;

[0031] (2) Next, add 1 part of magnesium sulfate, 1 part of sodium molybdate, 1 part of magnesium chloride, 2 parts of sodium dodecylbenzene sulfonate, 2 parts of lignin sulfonate to the calcium acetate solution A obtained in step (1). Sodium, 1 part of organic bentonite, and then stirred at a stirring rate of 1000 rpm for 60 minutes to prepare calcium acetate composite solution B

[0032] (3) Grind the calcium acetate composite solution B obtained in step (2) with a colloid mill or a planetary mill, grind for 30 minutes, then collect the material, and finally prepare a water-soluble fertilizer without nitrogen and high calcium;

[0033] After testing, the prepared water-soluble fertilizer containing no nitrogen and high calcium has a viscosity of 867mpa...

Embodiment 3

[0035] (1) First, add 62 parts of calcium formate to 30 parts of ionized water, stir for 60 minutes at a stirring rate of 1500 rpm, and control the temperature at 50° C. to obtain a uniformly dispersed calcium formate solution A;

[0036] (2) Next, add 1 part of EDTA-Fe, 1 part of EDTA-Zn, 0.5 part of EDTA-Mn, 0.5 part of EDTA-Cu, 2 parts of dodecylbenzene to the calcium formate solution A prepared in step (1) Sodium sulfonate, 2 parts of calcium lignosulfonate, 1 part of organic bentonite, and then stirred at a stirring rate of 500 rpm for 120 minutes to prepare calcium formate composite solution B;

[0037] (3) Grind the calcium formate composite solution B obtained in step (2) with a colloid mill or a planetary mill, grind for 30 minutes, then collect the material, and finally prepare a water-soluble fertilizer without nitrogen and high calcium;

[0038] After testing, the prepared water-soluble fertilizer without nitrogen and high calcium has a viscosity of 572mpa.s (25°C), is st...

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Abstract

The invention relates to a nitrogen-free high-calcium water-soluble fertilizer and a preparation method thereof. The nitrogen-free high-calcium water-soluble fertilizer is composed of 45-90 parts of water-soluble calcium source, 8-50 parts of deionized water, 1-10 parts of medium / trace element-containing nutrient substance, 0.1-2 parts of surfactant, 0.1-3 parts of dispersing agent and 0.1-3 partsof thixotropic agent. The preparation method comprises the following steps: adding the water-soluble calcium source into the deionized water, sequentially adding the medium / trace element-containing nutrient substance, surfactant, dispersing agent and thixotropic agent, and grinding by a colloid mill or planetary mill to obtain the nitrogen-free high-calcium water-soluble fertilizer. The suspension technique is utilized to prepare the uniform long-time stable nitrogen-free high-calcium water-soluble fertilizer. The nitrogen-free high-calcium water-soluble fertilizer can be used for plant leaves, flowers, stems, roots or other exposed parts of plants in a leaf spraying mode, drip irrigation mode or the like, and the calcium can be quickly absorbed and utilized by the crops. The invention overcomes the defects of poor water solubility and alkali solubility of some traditional calcium fertilizers, difficulty in utilizing the calcium source by the crops, product instability caused by poorsolubility and blockage of the irrigation and drip irrigation pipeline caused by calcium precipitate.

Description

Technical field [0001] The invention relates to a nitrogen-free high-calcium water-soluble fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. Background technique [0002] Calcium is an essential nutrient for plant growth. Plants need calcium for cell growth and division, root tip and shoot tip growth, leaf retention, and as an indispensable part or cell structure integrity. The poor alkali solubility of calcium salt makes it difficult to supply calcium in fertilizers. This poor solubility leads to storage problems due to product instability, and calcium deposits can block the irrigation drip feed line. [0003] The prior art is trying to solve these problems by using acidic formulations to provide aqueous calcium-based fertilizers. Patent US5997602 describes the use of an aqueous fertilizer suspension and suspension containing at least phosphate ions and calcium or magnesium ions, at least calcium, magnesium and phosphate ions, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/50C05G5/27
CPCC05G3/00C05G3/50C05G5/27C05D9/00C05D5/00C05D9/02C05F11/00
Inventor 王仁宗汪志操素芬
Owner HUBEI FORBON TECH
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