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Magnetized controlled release fertilizer capable of resisting saline and alkaline land and preparation method of magnetized controlled release fertilizer

A technology for slow-release fertilizers and saline-alkali land, applied in the field of magnetized slow-release fertilizers and their preparation, can solve the problems of reduced utilization rate of chemical fertilizers, loss of effectiveness, environmental pollution, etc., and achieve the goals of reduced solubility, improved absorption capacity, and enhanced cell vitality Effect

Inactive Publication Date: 2016-03-23
ANHUI HUACHUANG MODERN AGRI TECH
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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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Examples

Experimental program
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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): soybean meal 270-300, rare earth 8-10, wheat gluten 50-70, copper humate 22-26, straw ash 140-160, potassium sulfate 15-18, Fly ash 80-100, pyrite ash 60-70, tapioca starch 33-37, calcium acetate 6-9, compound biological agent 12-16, appropriate amount of water;

[0022] The composite biological agent includes sulfate-reducing bacteria, isoxiric iron-reducing bacteria and Bacillus subtilis in a ratio 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 850-900°C for 20 minutes, take it out and cool it, then put the pyrite ash into the high-temperature furnace, calcinate at 400-500°C for 40 minutes, take it out Cool, mix the two ki...

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Abstract

The invention discloses magnetized controlled release fertilizer capable of resisting a saline and alkaline land and a preparation method of the magnetized controlled release fertilizer. The magnetized controlled release fertilizer is prepared from the following raw materials in parts by weight: 270 to 300 parts of soybean meal, 8 to 10 parts of rare earth, 50 to 70 parts of wheat gluten powder, 22 to 26 parts of copper humate, 140 to 160 parts of straw ash, 15 to 18 parts of potassium sulfate, 80 to 100 parts of fly ash, 60 to 70 parts of iron pyrite ash, 33 to 37 parts of cassava starch, 6 to 9 parts of calcium acetate, 12 to 16 parts of compound biological microbial inoculant and a proper amount of water. The fertilizer is magnetized and modified and organic materials including the straw ash, the wheat gluten powder and the like which have a relatively strong base ion adsorption capability are also added, so that mineral sediment in soil can be dissolved and is converted into effective nutrients to be absorbed by crops; meanwhile, the total salt content, total alkalinity, exchangeable sodium and pH value of a soil plough layer can be reduced, so that the solubility of soluble salt in the soil is reduced, the salt inhibition effect is realized and damage to the crops by soil salinity are alleviated.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a magnetized slow-release fertilizer for saline-alkali resistant land 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. T...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05F17/00C05G3/80
CPCC05D1/02C05D3/00C05F5/002C05F17/00C05G3/80C05G5/30C05D9/00C05F9/04C05F11/00C05F11/08C05F5/008Y02W30/40
Inventor 张华传
Owner ANHUI HUACHUANG MODERN AGRI TECH
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