Soil regulator for reatining water, oil and fertilizer and controlling pollution and preparing thereof

A technology of soil conditioner and preparation process, which is applied in the field of soil conditioner preparation process, which can solve the problems of unsatisfactory agricultural product production, unreported soil structure, adsorption of heavy metals and pesticide residues, etc., and achieve high water solubility and preparation process short effect

Inactive Publication Date: 2005-02-16
INST OF BIOLOGICAL TECH YUNNAN PROV ACAD OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After searching the patent literature, it is known that the composition of absorbing ammonium, potassium, calcium, magnesium and other nutrients with polyacrylic acid resin has been reported. It is used in agriculture and afforestation, but the main function is to maintain water and soil and resist leaching, and to increase fertilizer by absorbing water and retaining water. , cross-linked with small molecular compounds as plant growth regulators, it has not been reported that it can improve soil structure, absorb heavy metals and pesticide residues, improve the quality of agricultural products, especially the safety quality, and cannot meet the needs of safe agricultural product production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0011] Example 1 Take 10kg of acrylic acid, add 20kg of 20-45% sodium hydroxide to neutralize it, add 40kg of water to absorb the heat of polymerization, adjust the pH of the aqueous solution to PH7-14, add free radical initiator potassium persulfate or persulfate per liter of acrylic acid 0.1-0.6g Ammonium sulfate, put the aqueous solution to polymerize and cool to room temperature to obtain the hydrosol of polyacrylic acid sodium salt or ammonium salt, which contains 4-10% of sodium polyacrylate and 90-85% of water.

example 2

[0012] Example 2 Take 10kg of acrylic acid, add 20kg of 20-29% ammonia water for neutralization, add 20kg of water to absorb the heat of polymerization, adjust the pH of the aqueous solution to PH7-14, add free radical initiator potassium persulfate or ammonium persulfate at a rate of 0.1-0.6g per liter of acrylic acid , put the aqueous solution to polymerize and cool to room temperature to obtain the aqueous sol of polyacrylic acid sodium salt or ammonium salt, which contains 4-10% of ammonium polyacrylate and 90-85% of water.

example 3

[0013] Example 3 The aqueous sol of polyacrylic acid sodium salt or ammonium salt obtained in the above two examples was dried at 150°C until it was easily crushed, and then crushed through a 20-mesh sieve to obtain polyacrylic acid gel. The content of polyacrylic acid sodium salt or ammonium salt: 98%.

[0014] apply effects

[0015] On four smoky red soils (acidic, slightly acidic, slightly alkaline, and alkaline) and one potting soil, wheat stalks, corn stalks, rapeseed cakes were added with chemical fertilizers, and German Agrosol was applied before transplanting flue-cured tobacco Soil improver and additional application of PAA salt soil conditioner of the present invention, compared with appropriate amount of single application of chemical fertilizer and large amount of single application of chemical fertilizer, to study the impact of application of organic matter on soil properties, flue-cured tobacco yield, output value and quality of tobacco leaves. The results showed...

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PUM

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Abstract

The invention is an earth-adjusting agent keeping water, earth and fertilizer and controlling pollution and the making technique. It uses 20-45% NaOH 1-2 shares or 20-29% ammonia 4-2 shares and 95-98% acrylic acid 1 share, adds in water whose bulk is 2-15 times acrylic acid's to get rid of polymerization heat, the polymeric water solution pH 7-14, and adds the free evocating agent, potassium persulphate or ammonium persulphate to get the hydrosol of polyacrylate sodium or ammonium salt.

Description

Technical field: [0001] The invention relates to agricultural production technology, in particular to a preparation process of a soil conditioner for water, soil, fertilizer and pollution control. Background technique: [0002] After retrieving patent literature, it is known that the composition of absorbing nutrients such as ammonium, potassium, calcium, and magnesium with polyacrylic acid resin has been reported. It is used in agriculture and afforestation, but the main function is to maintain water and soil and resist leaching, and increase fertilizer by absorbing water. , cross-linked with small molecular compounds as plant growth regulators, it has not been reported that it can improve soil structure, absorb heavy metals and pesticide residues, improve the quality of agricultural products, especially the safety quality, and cannot meet the needs of safe agricultural product production. Invention content: [0003] The present invention proposes a soil conditioner for m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40
Inventor 张晓林和丽忠陈锦玉沙凌杰樊永言
Owner INST OF BIOLOGICAL TECH YUNNAN PROV ACAD OF AGRI
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