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High-utilization-rate magnetized sustained-release fertilizer and preparation method thereof

A slow-release fertilizer and utilization rate technology, applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve the problems of reduced utilization rate of chemical fertilizers, environmental pollution, loss of effectiveness, etc., to improve microcirculation, enhance cell vitality, improve The effect of absorbency

Inactive Publication Date: 2015-11-04
ANHUI HUIHUANG FERTILIZER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the research, the nitrogen, phosphorus, potassium and other nutrients applied to the soil will undergo various physical and chemical changes, among which nitrogen will be lost through volatilization, leaching, denitrification, etc., and phosphorus is easily absorbed by Al in the soil. 3+ , Fe 3+ and Ca 2+ , Mg 2+ and other ions are fixed to form stable precipitates or form closed storage phosphorus with iron, aluminum oxides, etc. and gradually lose their effectiveness
These factors will lead to a reduction in the utilization rate of chemical fertilizers
The use of chemical fertilizers will also bring environmental pollution, such as the greenhouse effect, eutrophication of water bodies, etc.

Method used

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Embodiment Construction

[0019] specific implementation plan

[0020] The present invention will be described in further detail below in conjunction with the following specific embodiments:

[0021] Weigh the following raw materials in parts by weight (kg): 65 broad-leaved sawdust, 10 magnesium humate, 310 dried cow dung, 145 cottonseed hulls, 22 ammonium nitrate, 6 cobaltous chloride, 60 fly ash, pyrite Ash 100, Tapioca Starch 31, Calcium Acetate 5, Compound Biological Agent 18, Appropriate amount of water;

[0022] The composite biological agent includes sulfate-reducing bacteria, isoxiric iron-reducing bacteria and Bacillus subtilis in a proportion of 1:1:2.

[0023] The concrete steps of the preparation of described fertilizer are as follows:

[0024] (1) Put the fly ash in a high-temperature furnace, calcinate at 900°C for 30 minutes, take it out and cool it, then put the pyrite ash into the high-temperature furnace, calcinate it at 550°C for 30 minutes, take it out and cool it, put the two Mi...

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Abstract

The invention discloses a high-utilization-rate magnetized sustained-release fertilizer and a preparation method thereof. The fertilizer is prepared from the raw materials, by weight: 60-70 parts of broadleaved wood chip, 9-10 parts of magnesium humate, 300-320 parts of dry cow dung, 130-160 parts of cottonseed hull, 20-24 parts of ammonium nitrate, 6-7 parts of cobalt chloride, 55-65 parts of fly ash, 90-110 parts of pyrite ash, 30-32 parts of tapioca starch, 3-6 parts of calcium acetate, 17-19 parts of a composite biological agent, and proper amount of water. According to the invention, organics and inorganic raw materials are blended, such that fertilizer nutrient composition is enriched, and instant and delayed nutrient contents in soil are increased. The fertilizer is applied in soil after magnetization, such that soil magnetism can be increased with residual magnetism in the fertilizer. Soil magnetism and biological magnetism effects are improved, soil and crop microcirculation is improved, fertilizer effect is more fully performed, and fertilizer utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a magnetized slow-release fertilizer with high utilization rate and a preparation method thereof. Background technique [0002] my country is a typical large agricultural country with a large population and little arable land, and chemical fertilizers play a very important role in the production of crops. According to the research, the nitrogen, phosphorus, potassium and other nutrients applied to the soil will undergo various physical and chemical changes, among which nitrogen will be lost through volatilization, leaching, denitrification, etc., and phosphorus is easily absorbed by Al in the soil. 3+ , Fe 3+ and Ca 2+ , Mg 2+ And other ions are fixed to form stable precipitates or form closed storage state phosphorus with iron, aluminum oxides, etc., and gradually lose their effectiveness. These factors will reduce the utilization rate of fertilizer application. The use...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 张西坤
Owner ANHUI HUIHUANG FERTILIZER IND CO LTD
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