Medium trace element mixture and preparation method of medium trace element-wrapped fertilizer

A technology of medium and trace elements and mixtures, applied in urea compound fertilizers, layered/coated fertilizers, inorganic fertilizers, etc., can solve the problems of difficult to evenly disperse crops, large particle size of massive sulfur, and speeding up the sulfur film layer, etc. To achieve the effect of flexible addition, controllable content, and uniform dispersion

Inactive Publication Date: 2018-12-11
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention quickly and flexibly adds medium and trace elements; solves the problem that the pure medium and trace element granules are difficult to uniformly disperse in the soil and causes crop poisoning; by adding swelling materials, the disintegration of the sulfur film layer into sulfur particles is accelerated, and the blocky The particle size of sulfur is too large to be absorbed by crops; the medium and trace element film formed in this way is firmly combined with the fertilizer particles and is not easy to fall off; it can wrap medium and trace element materials that combine quick-acting and long-acting effects, which is beneficial to the growth cycle of crops. nutritional needs

Method used

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  • Medium trace element mixture and preparation method of medium trace element-wrapped fertilizer

Examples

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Effect test

Embodiment example 1

[0029] (1) Preparation of medium and trace element mixture. The composition of the mixture was as follows: 75% sulfur, 10% zinc oxide, 5% zinc sulfate (without water) and 10% sodium polyacrylate with a molecular weight of 5000. The sulfur is heated to a liquid state, and medium zinc oxide, zinc sulfate and sodium polyacrylate are added to the liquid sulfur and mixed uniformly to prepare a medium and trace element mixture.

[0030] (2) Prepare a novel fertilizer of trace elements in the package. Add diammonium phosphate (DAP: 18-46-0) to the wrapping drum and preheat to 60°C. Addition ratio of medium and trace element mixture: 1 ton of diammonium phosphate wraps 120kg of medium and trace element mixture, and the wrapped granular fertilizer is cooled and packaged.

[0031] (3) The novel middle and trace element fertilizer nutrient that finally prepares is as follows:

[0032]

[0033] Zinc is one of the essential trace elements for plants. It is an activator of various enz...

Embodiment example 2

[0036] (1) Preparation of medium and trace element mixture. The composition of the mixture is as follows: 50% sulfur, 15% magnesium oxide, 10% zinc oxide, 10% anhydrous copper sulfate, 10% boric acid and 5% chitosan with a molecular weight of 50000. The sulfur is heated to a liquid state, and medium magnesium oxide, zinc oxide, anhydrous copper sulfate, boric acid and chitosan are added to the liquid sulfur and mixed uniformly to prepare a medium and trace element mixture.

[0037] (2) Prepare a novel fertilizer of trace elements in the package. Add compound fertilizer (NPK: 15-15-15) into the disc with heating function and preheat to 40°C. Addition ratio of medium and trace element mixture: 1 ton of compound fertilizer is wrapped with 150kg of medium and trace element mixture, and the wrapped granular fertilizer is cooled and packaged.

[0038] (3) The novel middle and trace element fertilizer nutrient that finally prepares is as follows:

[0039]

[0040] After ...

Embodiment example 3

[0042] (1) Preparation of medium and trace element mixture. The composition of the mixture is as follows: 90% sulfur, 5% boric acid and 5% cellulose with a molecular weight of 60000. The sulfur is heated to a liquid state, and medium boric acid and cellulose are added to the liquid sulfur and mixed evenly to prepare a medium and trace element mixture.

[0043] (2) Prepare a novel fertilizer of trace elements in the package. Add urea (46-0-0) into the bottom spray fluidized bed equipment and preheat to 55°C. Addition ratio of medium and trace element mixture: 1 ton of urea is wrapped with 200kg of medium and trace element mixture, and the wrapped granular fertilizer is cooled and packaged.

[0044] (3) The novel middle and trace element fertilizer nutrient that finally prepares is as follows:

[0045]

[0046] Urea is upgraded to urea containing sulfur and boron through this technology. Boron can promote the absorption of nitrogen and can improve the utilization ra...

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Abstract

The invention relates to a medium trace element mixture and a preparation method of a medium trace element-wrapped fertilizer. The medium trace element mixture is prepared from the following components: 50% to 90% of sulfur, 5% to 20% of swelling material, and 5% to 45% of medium trace element other than sulfur. The preparation method comprises the following steps: adding the medium trace elementand the swelling material into liquid sulfur and evenly mixing. The preparation method of the medium trace element-wrapped fertilizer comprises the following steps: placing the conventional granular fertilizer in a wrapping device with a heating function, after heating the medium trace element mixture to a certain temperature, spraying on the surface of the granular fertilizer, and forming a medium trace element film on the surface of the fertilizer by cooling and curing. The medium trace element mixture and the preparation method of the medium trace element-wrapped fertilizer provided by theinvention have the advantages that the medium trace elements are quickly and flexibly added; the problem of uniform dispersion of the medium trace elements in soil is solved, and the local poisoning is avoided; the film formed by wrapping the medium trace element material is firmly combined with fertilizer particles, and is not easy to fall off; fast-acting and long-acting combined medium trace element materials can be wrapped, which is beneficial to the nutritional needs of crops in the whole growth cycle.

Description

technical field [0001] The invention relates to the technical field of novel fertilizer coatings, in particular to a preparation method of medium and trace element mixtures and packaged medium and trace element fertilizers. Background technique [0002] China's agriculture has experienced continuous years of rapid development and has achieved world-renowned achievements. At the same time, the extensive growth model has brought many problems: rapid resource consumption, serious environmental pollution, and degradation of land resource functions. The utilization rate of high-nutrient quick-acting fertilizers is extremely low, and agricultural non-point source pollution caused by fertilizer loss is very serious. With the reform and improvement of my country's modern agricultural technology and agricultural production structure, fertilizers that meet the needs of my country's agricultural production and are environmentally friendly will become the main body of fertilizers in my...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05C9/00C05D5/00C05G3/00C05G3/20C05G5/30C05D9/00C05D9/02C05G1/00
Inventor 王仁宗王瑞操素芬吴初柱孙金艳
Owner HUBEI FORBON TECH
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