A soil heavy metal pollution ecological improver and preparation method thereof

A technology of heavy metals and modifiers, applied in the field of cultivated land restoration, can solve the problems of polluted agricultural land and agricultural products, the decline of the yield and quality of agricultural products, and the restriction of sustainable agricultural development, so as to improve quality and safety, inhibit the absorption of heavy metals, and improve soil physical and chemical properties. The effect of nature

Active Publication Date: 2019-04-02
HUNAN ZHONGKE AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, heavy metal pollutants are mainly mercury, arsenic, copper, lead, chromium, zinc, and nickel, which seriously pollute agricultural land and agricultural products, causing heavy metal residues in agricultural products in these places to exceed the standard, and leading to soil compaction, soil fertility decline, Rampant pests and diseases, decline in the yield and quality of agricultural products have seriously restricted the sustainable development of agriculture in our country

Method used

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  • A soil heavy metal pollution ecological improver and preparation method thereof
  • A soil heavy metal pollution ecological improver and preparation method thereof
  • A soil heavy metal pollution ecological improver and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] First, pulverize calcium oxide, pass through a 100-mesh sieve, and set aside;

[0038] Secondly, take 60 parts of calcium oxide powder, 36 parts of humic acid, 2 parts of abscisic acid, and 2 parts of trace element raw materials according to the proportion of scientific compatibility, mix evenly, put them in the fermenter for rapid fermentation, and decompose into the improver Raw material combination, spare;

[0039] Thirdly, dry, pulverize and sieve the improving agent raw materials, the particle size is less than 0.18mm, and set aside;

[0040] Fourth, according to the conventional production method of granulated organic fertilizer by extrusion method, granulate, and then pack.

[0041] Cultivated land application of common soil heavy metal passivator and application of this embodiment 1

[0042] Effect comparison table of soil heavy metal pollution ecological improver

[0043]

[0044]

Embodiment 2

[0046] First, pulverize calcium oxide, pass through a 100-mesh sieve, and set aside;

[0047] Secondly, take 70 parts of calcium oxide powder, 26 parts of humic acid, 1 part of abscisic acid, and 3 parts of trace element raw materials in proportion to scientific compatibility, mix them evenly, and place them in a fermenter for fast-maturing fermentation to decompose into an improver Raw material combination, spare;

[0048] The third and fourth steps are the same as in Example 1.

[0049] Cultivated land application of common soil heavy metal passivator and application of this embodiment 2

[0050] Effect comparison table of soil heavy metal pollution ecological improver

[0051]

Embodiment 3

[0053] First, pulverize calcium oxide, pass through a 100-mesh sieve, and set aside;

[0054] Secondly, take 50 parts of calcium oxide powder, 46 parts of humic acid, 3 parts of abscisic acid, and 1 part of trace element raw materials in proportion to scientific compatibility, mix them evenly, and place them in a fermenter for fast-maturing fermentation to decompose into an improver Raw material combination, spare;

[0055]The third and fourth steps are the same as in Example 1.

[0056] Common soil heavy metal passivation agent is applied to cultivated land and this embodiment 3 is applied

[0057] Effect comparison table of soil heavy metal pollution ecological improver

[0058]

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Abstract

The invention discloses an ecological improver for heavy metal pollution of soil. The ecological improver is prepared by mixing, by weight, 50-70 parts of calcium oxide, 26-46 parts of humic acid, 1-3 parts of abscisic acid and 1-3 parts of microelements, decomposing and fermenting the mixture and granulating the fermented mixture, has the advantages of effectively regulating the PH value of the soil, significantly increasing organic matter in the soil, supplementing abscisic acid and the microelements in the soil, achieving the obvious repairing effect after being applied to the soil polluted by heavy metals and the like and can be not only used for heavy metal pollution repairing and ecological improving of the paddy farmland soil in the south of China but also used for heavy metal pollution repairing and ecological improving of the dry soil farmland in the south of China. The invention further discloses a preparation method of the ecological improver for heavy metal pollution of the soil.

Description

technical field [0001] The invention relates to the technical field of cultivated land restoration, in particular to an ecological improver for soil heavy metal pollution and a preparation method thereof. Background technique [0002] In April 2014, the Ministry of Environmental Protection and the Ministry of Land and Resources jointly issued the first national survey report on soil pollution. The overall situation of the national soil environment is not optimistic. Some areas have serious soil pollution, and the quality of cultivated land soil environment is worrying. Among the soils of different land use types, the point exceeding standard rate of cultivated land soil was the highest, which was 19.4%. Among them, heavy metal pollutants are mainly mercury, arsenic, copper, lead, chromium, zinc, and nickel, which seriously pollute agricultural land and agricultural products, causing heavy metal residues in agricultural products in these places to exceed the standard, and lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K101/00
Inventor 文贻荣黄生博
Owner HUNAN ZHONGKE AGRI
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