Magnetic fertilizer and production method thereof

A production method and technology of chemical fertilizers, which are applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as deterioration of water environment and atmospheric environment, increase in the use of chemical fertilizers, and increase in agricultural costs, so as to reduce the amount of nitrogen application and improve the Yield, the effect of convenient production

Inactive Publication Date: 2009-05-27
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in agricultural production, the application of organic fertilizers is declining sharply, while the use of chemical fertilizers (especially chemical nitrogen fertilizers) is increasing, which not only greatly increases the cost of agriculture, but also leads to the deterioration of the water environment and the atmospheric environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, magnetic nitrogen fertilizer, mixes magnetite and urea, wherein the ratio of magnetite to urea is 2:100; the particle size of magnetite is controlled in the range of 0.01 mm to 0.16 mm. After the two are mixed evenly, they are processed in a magnetic field with a magnetic field strength of 2500 Oersted for 40 seconds. get the product.

Embodiment 2

[0026] Embodiment 2 is substantially the same as Example 1, but the magnetic substance is replaced by maghemite; the fertilizer is ammonium bicarbonate; the mass ratio of the magnetic substance to the chemical fertilizer is 0.1:100. After the two are evenly mixed, they are treated in a magnetic field with a magnetic field strength of 4000 Oersted for 10 seconds. get the product.

Embodiment 3

[0027] Embodiment 3 is basically the same as Embodiment 1, but the magnetic substance is replaced by an artificial permanent magnet oxide magnetic material; the fertilizer is replaced by ammonium sulfate. The mass ratio of the magnetic substance to the common chemical fertilizer is 5:100. After the two are evenly mixed, they are treated in a magnetic field with a magnetic field strength of 1000 Oersted for 100 seconds. get the product. Micro-fertilizer (trace element fertilizer) is also added in the chemical fertilizer of the present embodiment.

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PUM

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Abstract

The invention relates to a magnetic fertilizer and a production method thereof. The magnetic fertilizer consists of chemical fertilizer, and is characterized by also comprising a magnetic substance, wherein mass ratio of the magnetic substance to the chemical fertilizer is between 0.1-5:100. The magnetic substance is selected from natural magnetic mineral, such as magnetite, maghemite and the like, and artificial permanent magnetic material, such as iron oxidization magnetic material, ferrimanganic permanent magnetic material or rear-earth permanent magnetic material. The production method for the magnetic fertilizer comprises the following steps: (1) firstly weighing a certain amount of common chemical fertilizer, and then mixing the common chemical fertilizer and the magnetic substance in a preset proportion; (2) stirring the mixture evenly; and (3) putting the evenly stirred mixture in magnetic field, and carrying out magnetization treatment on the mixture to obtain final products. The production method can improve the yield of grains remarkably, and reduce application amount of nitrogen at the same time, so as to reduce pollution of farm production to environment. The production method can conveniently produce the magnetic fertilizer.

Description

technical field [0001] The invention relates to a chemical fertilizer and a production method thereof, in particular to a magnetic chemical fertilizer and a production method of the chemical fertilizer. Background technique [0002] With the development of large-scale agricultural production and the improvement of human requirements for the environment, the contradiction between increasing fertilization to increase production and reducing non-point source pollution (especially N and P pollution) caused by agricultural production has become increasingly prominent, so further development of new Fertilizers, so that new fertilizers that do not reduce their yield while reducing the amount of fertilizer applied are imperative. [0003] At present, in agricultural production, the application of organic fertilizers is decreasing sharply, while the application of chemical fertilizers (especially chemical nitrogen fertilizers) is increasing, which not only greatly increases the cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 杨浩
Owner NANJING NORMAL UNIVERSITY
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