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Humic acid base ecological treating agent for water reservation of agriculture and forestry, and its preparation method

A water ecology and humic acid technology, applied in chemical instruments and methods, agriculture, applications, etc., can solve the problems of compacted soil production cost, poor salinity resistance, etc., to improve soil aggregate structure and plant nutritional status, increase resistance. The effect of inversion and improvement of water use efficiency

Inactive Publication Date: 2006-12-20
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a humate-based water-retaining agent in order to solve the problems of poor salt-alkali tolerance, compacted soil, and high production cost existing in the existing water-retaining agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Add 30.20 g of acrylamide and 33.91 g of acrylic acid to the reactor, then add 55.53 g of potassium hydroxide solution with a concentration of 30.00% to neutralize the acrylic acid, and keep the temperature of the reaction solution at no more than 30° C. during the process;

[0033] (2) Add 20.30g of potassium humate to the solution of step (1), and stir evenly at 20~30°C;

[0034] (3) Add 3.05g of ammonium persulfate solution with a concentration of 2.00% and 1.45g of N,N-methylenebisacrylamide solution with a concentration of 2.00% to the reactor successively, and add 380g of deionized solution to the reaction system Water, stir well at 25~35℃;

[0035] (4) Raise the temperature of the reaction solution to 70-80°C for reaction, and stop the reaction until a viscous gel-like product is formed;

[0036] (5) Take out the product, cool to room temperature, cut into small pieces, dry, and pulverize with a pulverizer to obtain a humic acid-based agricultural and forest...

Embodiment 2

[0039] (1) Add 27.74g of acrylamide and 21.73g of acrylic acid to the reactor, then add 41.07g of potassium hydroxide solution with a concentration of 30.00% to neutralize the acrylic acid, and keep the temperature of the reaction solution no more than 30°C during this process;

[0040] (2) Add 41.34g potassium humate to the solution of step (1), stir evenly at 20~30°C;

[0041] (3) Add 5.40 g of 2.00% ammonium persulfate solution and 4.60 g of 2.00% N, N-methylenebisacrylamide solution to the reactor in turn, and add 425 g of deionized water to the reaction system Water, stir well at 25~35℃;

[0042](4) Raise the temperature of the reaction solution to 70-80°C for reaction, and stop the reaction until a viscous gel-like product is formed;

[0043] (5) Take out the product, cool to room temperature, cut into small pieces, dry, and pulverize with a pulverizer to obtain a humic acid-based agricultural and forestry water retention ecological management agent.

[0044] The water...

Embodiment 3

[0046] (1) Add 4.96g of acrylamide and 15.96g of acrylic acid to the reactor, then add 29.77g of potassium hydroxide solution with a concentration of 30.00% to neutralize the acrylic acid, and keep the temperature of the reaction solution not exceeding 30°C during this process;

[0047] (2) Add 70.39g potassium humate to the solution of step (1), and stir evenly at 20~30°C;

[0048] (3) Add 7.60 g of 2.00% ammonium persulfate solution and 8.05 g of 2.00% N, N-methylenebisacrylamide solution to the reactor in turn, and add 436 g of deionized water to the reaction system Water, stir well at 25~35℃;

[0049] (4) Raise the temperature of the reaction solution to 70-80°C for reaction, and stop the reaction until a viscous gel-like product is formed;

[0050] (5) Take out the product, cool to room temperature, cut into small pieces, dry, and pulverize with a pulverizer to obtain a humic acid-based agricultural and forestry water retention ecological management agent.

[0051] The ...

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Abstract

This invention discloses a humic acid agroforestrial water-retaining ecological treating agent, belonging to the agroforestrial water-retaining ecological treating agent technological field. In order to solve the problems of current water-retaining agent, such as poor salt and alkaline resistance, harden soil and high cost of production, this invention proposes that it can use humate, acroleic acid and acrylamide as raw material to produce the humic acid agroforestrial water-retaining ecological treating agent by solution polymerization with presence of cross linker and initiator. The agent not only has a high water absorption ratio, but can improve the soil physicochemical properties, plant nutritional quality, drought resistance and soil moisture conservation, which can efficiently stimulate plant growth and improve water utilization efficiency so as to achieve the effects of increasing both production and income.

Description

technical field [0001] The invention relates to a water-retaining ecological management agent used in agriculture and forestry and a preparation method thereof, more specifically, the present invention relates to a water-retaining agent based on a humate-acrylamide-acrylate copolymer water-absorbing resin and a preparation method thereof . Background technique [0002] Controlling soil erosion and desertification is a complex systematic project. Among many measures, the application of water-retaining agent to control soil erosion, drought and desertification is a new and effective way at present. [0003] Water-retaining agent is a new type of functional polymer material, which can absorb a large amount of water in a short period of time, and the water absorption capacity is as high as tens to thousands of times of its own weight, and the gel formed after absorbing water and swelling is not easy to separate out water under pressurized conditions . When the relative humidi...

Claims

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Application Information

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IPC IPC(8): C08F301/00C09K17/18
Inventor 邹立壮李威朱书全黄宝堂钱芬芬初茉
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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