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Multifunctional soil improvement agent

A soil conditioner and multi-functional technology, applied in soil conditioning materials, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problems of low adsorption capacity, poor adsorption of heavy metal elements, and difficulty in effectively improving soil heavy metal pollution. , to avoid soil compaction, avoid being absorbed by crops again, and improve the effect of biological conservation

Inactive Publication Date: 2018-10-26
HEFEI SHENWO HORTICULTURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the adsorbents used in conventional soil conditioners have low adsorption capacity for heavy metal elements and poor selective adsorption for heavy metal elements, making it difficult to effectively improve the heavy metal pollution in soil.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A multifunctional soil improver, characterized in that: according to the mass fraction, the components of the soil improver include: 60 parts of desulfurized gypsum, 15 parts of humic acid, 6 parts of polystyrene-loaded polyamide-amine type resin, 4 parts of adsorption aid, 2 parts of polyacrylamide, 2 parts of citric acid, 3 parts of urea, 3 parts of magnesium sulfate, 0.4 part of calcium gluconate, 1.1 part of compound amino acid.

[0033] The preparation method of adsorption aid provided by the invention is:

[0034] (1) According to the mass parts, add 30 parts of 1.5mol / L nitric acid solution into the reaction kettle, then add 2 parts of sodium alkylsulfonate and 5 parts of polyvinyl alcohol into the reaction kettle, and the mixture is heated at a temperature of 55°C Heating and stirring, then adding 13 parts of tetraethyl orthosilicate into the reaction kettle, stirring to obtain a precipitate, centrifuging, filtering, washing, and drying the precipitate, and roas...

Embodiment 2

[0045] A multifunctional soil improver, characterized in that: according to the mass fraction, the components of the soil improver include: 80 parts of desulfurized gypsum, 18 parts of humic acid, 10 parts of polystyrene-loaded polyamide-amine type resin, 7 parts of adsorption aid, 4 parts of polyacrylamide, 5 parts of citric acid, 6 parts of urea, 4 parts of magnesium sulfate, 0.8 part of calcium gluconate, and 1.6 parts of compound amino acid.

[0046] The preparation method of adsorption aid provided by the invention is:

[0047] (1) According to the mass parts, add 30 parts of 1.5mol / L nitric acid solution into the reaction kettle, then add 2 parts of sodium alkylsulfonate and 5 parts of polyvinyl alcohol into the reaction kettle, and the mixture is heated at a temperature of 60°C Heating and stirring, then adding 13 parts of tetraethyl orthosilicate into the reaction kettle, stirring to obtain a precipitate, centrifuging, filtering, washing, and drying the precipitate, an...

Embodiment 3

[0058] A kind of multifunctional soil conditioner, is characterized in that: according to mass fraction, the component of described soil conditioner comprises:

[0059] 70 parts of desulfurized gypsum, 16 parts of humic acid, 8 parts of polystyrene-loaded polyamide-amine resin, 5.5 parts of adsorption aid, 3.1 parts of polyacrylamide, 3.5 parts of citric acid, 5 parts of urea, 3.4 parts of magnesium sulfate, Calcium gluconate 0.6 parts, compound amino acid 1.3 parts.

[0060] The preparation method of adsorption aid provided by the invention is:

[0061] (1) According to the mass parts, add 30 parts of 1.5mol / L nitric acid solution into the reaction kettle, then add 2 parts of sodium alkylsulfonate and 5 parts of polyvinyl alcohol into the reaction kettle, and the mixture is heated at a temperature of 57°C Heating and stirring, then adding 13 parts of tetraethyl orthosilicate into the reaction kettle, stirring to obtain a precipitate, centrifuging, filtering, washing, and dry...

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PUM

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Abstract

The invention relates to the technical field of agricultural chemical materials and specifically relates to a multifunctional soil improvement agent. The soil improvement agent is prepared from the following components: desulfurized gypsum, humic acid, polystyrene loaded polyamide-amine type resin, an adsorption auxiliary, polyacrylamide, citric acid, urea, magnesium sulfate, calcium gluconate andcompound amino acid, wherein the adsorption auxiliary is a kind of porous and loose adsorptive particles; the polystyrene loaded polyamide-amine type resin is a macromolecular substance with a dendritic functional group and can effectively adsorb metal ions such as Hg, Cu, Ni, Cd, Zn and Pb. The soil improvement agent not only can loosen the soil, improve the soil acidity and alkalinity and the microflora quality and recover the land productivity, but also can adsorb and cure the heavy metal elements in soil.

Description

technical field [0001] The invention relates to the technical field of agricultural chemical materials, in particular to a multifunctional soil conditioner. Background technique [0002] With the increase of my country's population, the advancement of urbanization and the improvement of people's material living standards, the basic farmland has already experienced soil compaction and salinization due to high-load planting. This problem will lead to a sharp decline in farmland productivity. production rate is reduced. In order to solve this problem, my country has carried out a variety of farmland protection measures such as returning farmland to forest, returning farmland to grassland, fallow, and crop rotation in vast rural areas, which has greatly alleviated the degradation of farmland soil quality in my country. [0003] However, due to the low per capita arable land share in my country, large-scale reforestation, grazing and fallow will affect my country's grain producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B01J20/28B01J20/30B01J20/10C05G3/00C05G3/04C09K101/00C05G3/80
CPCB01J20/103B01J20/28016C05C9/00C05G3/00C05G3/80C09K17/40C09K2101/00C05C11/00C05D3/02C05D5/00C05F11/00C05F11/02
Inventor 汪中奇
Owner HEFEI SHENWO HORTICULTURE CO LTD
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