Soil conditioner for reducing content of heavy metals in soil and preparation method thereof

A soil conditioner and heavy metal technology, applied in soil conditioning materials, chemical instruments and methods, applications, etc., can solve the problem of high absorption rate of heavy metals, and achieve the effect of reducing heavy metal content, clear mechanism of action, and obvious effect.

Inactive Publication Date: 2016-12-07
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention aims at the problem that the existing flue-cured tobacco has a high absorption rate of heavy metals, and provides a soil conditioner for reducing the content of heavy metals in the soil and a preparation method thereof. The soil conditioner reduces various The content of heavy metals saves costs to the greatest extent and improves the safety of tobacco leaf production quality

Method used

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  • Soil conditioner for reducing content of heavy metals in soil and preparation method thereof
  • Soil conditioner for reducing content of heavy metals in soil and preparation method thereof
  • Soil conditioner for reducing content of heavy metals in soil and preparation method thereof

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preparation example Construction

[0022] The present invention also provides a kind of preparation method that is used to reduce the soil conditioner of heavy metal content in soil, comprises the following steps:

[0023] Step 1, calcium hydroxide, calcium superphosphate, magnesium sulfate, clinolite are dried, and the moisture content must be below 8%;

[0024] Step 2. At room temperature, calcium hydroxide, superphosphate, magnesium sulfate, and clinolite are respectively pulverized and ground, and after grinding, the above four components are passed through a 20-mesh sieve respectively.

[0025] Step 3. The sieved four components are uniformly prepared according to 20-30 parts of calcium hydroxide, 15-25 parts of superphosphate, 2-8 parts of magnesium sulfate, and 40-60 parts of clinolite. Mix, pass through a 20-mesh sieve again after mixing, and the final result is this soil conditioner.

Embodiment 1

[0027] A method for preparing a soil conditioner for reducing the content of heavy metals in soil, comprising the steps of: drying calcium hydroxide, superphosphate, magnesium sulfate, and clinolite, with a moisture content below 8%; at room temperature, respectively Calcium hydroxide, calcium superphosphate, magnesium sulfate, and clinopline are crushed and ground. After grinding, the above four components are passed through a 20-mesh sieve respectively; the following components are weighed according to parts by mass: 25 parts of calcium hydroxide, 20 parts of calcium phosphate, 5 parts of magnesium sulfate, and 50 parts of clinolite; the weighed calcium hydroxide, superphosphate, magnesium sulfate, and clinolite are mixed to prepare a soil conditioner for reducing heavy metal content in soil.

Embodiment 2

[0029] A method for preparing a soil conditioner for reducing the content of heavy metals in soil, comprising the steps of: drying calcium hydroxide, superphosphate, magnesium sulfate, and clinolite, with a moisture content below 8%; at room temperature, respectively Calcium hydroxide, calcium superphosphate, magnesium sulfate, and clinopline are crushed and ground. After grinding, the above four components are passed through a 20-mesh sieve respectively; the following components are weighed in parts by mass: 20 parts of calcium hydroxide, 25 parts of calcium phosphate, 2 parts of magnesium sulfate, and 60 parts of clinolite; the weighed calcium hydroxide, superphosphate, magnesium sulfate, and clinolite are mixed to prepare a soil conditioner for reducing heavy metal content in soil.

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PUM

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Abstract

The invention discloses a soil conditioner for reducing the content of heavy metals in soil, wherein the soil conditioner comprises the following components according to parts by weight: 20-30 parts of calcium hydroxide, 15-25 parts of superphosphate, 2-8 parts of magnesium sulfate, and 40-60 parts of clinoptilolit. The invention further discloses a preparation method of the soil conditioner. The preparation method of the soil conditioner is made on the basis of relevant tests and the practical production and application effects of flue-cured tobaccos, and takes both use cost and use efficiency into consideration. The method is simple in operation, low in cost, easy in popularization and remarkable in effect, the tobacco quality is improved on a certain degree, and the content of heavy metals in the tobacco is also reduced. The mechanism of action of the method is clear, scientific and reasonable.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco planting, and in particular relates to a soil conditioner for reducing heavy metal content in soil and a preparation method thereof. Background technique [0002] Heavy metal pollution of agricultural products is one of the quality and safety issues that consumers generally pay attention to and urgently need to be solved in the production process of agricultural products. Due to the difference in plant growth characteristics and genetic characteristics, different crops have significant differences in the absorption, enrichment process and characteristics of heavy metals. (Edited by Teng Wei et al. 2010.9. Hazard and Risk Assessment of Heavy Metal Pollution on Agricultural Products [M]. Beijing: Chemical Industry Press, 1). Tobacco leaves also belong to the category of agricultural products and are the raw material of cigarettes. The safety of tobacco leaves directly affects the safety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/06C09K109/00
CPCC09K17/06
Inventor 闫辉陈兴位王炽倪明李枝武饶智黎唯张静高燕查文菊
Owner INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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