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Drought-resistant soil-loosening auxiliary agent containing polyglutamic acid

A technology of polyglutamic acid and polyglutamic acid master, which is applied in the field of drought-resistant soil loosening additives, can solve the problems of restricting wide application, short duration, high cost, etc., and achieve low pollution-free cost, simple production process, Fast and dramatic results

Inactive Publication Date: 2021-07-20
湖北都兴隆农业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rise of oil prices in recent years, this kind of drought-resistant soil loosening agent has the disadvantages of single function, high cost, and short duration, which limits its wide application in agriculture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) Take 20g of starch and 180g of deionized water and add them to a four-necked flask equipped with a stirrer, thermometer, reflux condenser and nitrogen air pipe, stir evenly, place the reaction bottle in a constant temperature water bath, gelatinize at 80°C for 20min, and cool to 40°C.

[0015] 2) Add 120 g of acrylic acid (AA) partially neutralized with NaOH solution, 0.2 g of cross-linking agent N,N-nitrosobisacrylamide, and 210 g of yeast fermentation waste liquid to form a dispersion solution with gelatinized starch. Nitrogen was introduced to protect it for 10 minutes, 0.1 g of ammonium persulfate was added to initiate the reaction for 15 minutes, and the temperature was kept to stir for 4 hours.

[0016] 3) dividing the material obtained in step 2) into small pieces, and drying in an oven at 70° C.;

[0017] 4) Pulverize the dried material and take 0.01-1.0mm particles to obtain the drought-resistant soil loosening agent containing polyglutamic acid.

[0018] ...

Embodiment 2

[0020] 1) Take 23g of starch and 207g of deionized water and add them to a four-necked flask equipped with a stirrer, thermometer, reflux condenser and nitrogen air duct, stir evenly, place the reaction bottle in a constant temperature water bath, gelatinize at 80°C for 20min, and cool to 40°C.

[0021] 2) Add 135g of acrylic acid (AA) partially neutralized with NaOH solution, 0.25g of cross-linking agent N,N-nitrosobisacrylamide, and 240g of yeast fermentation waste liquid to form a dispersion solution with gelatinized starch. Nitrogen was introduced to protect it for 10 minutes, 0.1 g of ammonium persulfate was added to initiate the reaction for 15 minutes, and the temperature was kept to stir for 4 hours.

[0022] 3) dividing the material obtained in step 2) into small pieces, and drying in an oven at 70° C.;

[0023] 4) Pulverize the dried material and take 0.01-1.0mm particles to obtain the drought-resistant soil loosening agent containing polyglutamic acid.

[0024] Th...

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PUM

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Abstract

The invention discloses a drought-resistant soil-loosening auxiliary agent containing polyglutamic acid, wherein the auxiliary agent is characterized in that the drought-resistant soil-loosening auxiliary agent is obtained by reacting polyglutamic acid mother liquor, yeast fermentation waste liquor, starch, acrylic acid, N,N-methylene bisacrylamide and ammonium persulfate under the condition of constant-temperature water bath at the temperature of 70 DEG C. The drought-resistant soil-loosening auxiliary agent is mixed into a compound fertilizer raw material and granulated, wherein the dosage per ton is 3-10 kg. 150-300 g of the drought-resistant soil-loosening auxiliary agent can be used independently per mu, and the use amount of the drought-resistant soil-loosening auxiliary agent can be properly increased for severely hardened soil.

Description

technical field [0001] The invention belongs to the technical field of preparation of fertilizer additives, in particular to a drought-resistant soil loosening additive containing polyglutamic acid. Specifically, the polyglutamic acid mother liquor is used to add natural humic acid (HA), starch and other polymerization reactions to produce fast and effective drought-resistant soil loosening additives, which are mainly used in agriculture, forestry, horticulture, urban greening and other industries. Background technique [0002] As a highly efficient chemical water-saving material, polyacrylamide drought-resistant soil loosening agent is known as a "miniature reservoir" for crop roots in agriculture. After being applied to the soil, it shows strong water absorption and water retention performance, and has a good promotion effect on the growth of crops. At the same time, it also has a network adsorption effect on chemical fertilizers, pesticides, insecticides and plant growth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80
CPCC05C11/00C05G3/00C05G3/40C05G3/80C05F5/008C05F11/00
Inventor 江世文王红梅
Owner 湖北都兴隆农业技术有限公司
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