Environment-friendly modifier for improving saline-alkali soil and preparation method of environment-friendly modifier

An environment-friendly, saline-alkali land technology, applied in the direction of soil conditioning materials, chemical instruments and methods, applications, etc., can solve the problems of reducing soil nutrient availability, reducing osmotic pressure of soil solution, and difficulty in water absorption by plant roots, so as to improve soil permeability Sex, increase organic matter content and water content, conducive to reproduction and increase the effect

Pending Publication Date: 2022-03-01
GUANGDONG OCEAN UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The hazards of soil salinization include: when the soluble salt content in the soil increases, the osmotic pressure of the soil solution will decrease, and the water potential will decrease, which will cause difficulty in absorbing water for the plant roots, and "physiological drought" will appear. wilting and death; when the concentration of certain ions in the soil is too high, it will hinder the absorption of other

Method used

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  • Environment-friendly modifier for improving saline-alkali soil and preparation method of environment-friendly modifier

Examples

Experimental program
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Effect test

Embodiment 1

[0031] (1) Preparation of fishbone meal: after drying, the fishbone is pulverized through a 100-mesh sieve, and the dilute sulfuric acid of 0.5mol / L is added for reaction. The mass-to-volume ratio of fishbone and dilute sulfuric acid is 3g:10mL. get fish bone meal;

[0032] (2) 22 parts of vermicompost and 13 parts of fish bone meal are mixed, add the water of 20% of the weight sum of vermicompost and fish bone meal, then add 4 parts of composite microorganisms (by Saccharomyces cerevisiae, Bacillus licheniformis, lactis streptococcus and nitrogen-fixing bacteria Composed according to the mass ratio of 3:5:1:2), fermented at 25°C for 5 days to obtain a fermentation product;

[0033] (3) 18 parts of Kanuma soil, 21 parts of red jade soil and 14 parts of peat were mixed, dried and crushed through a 100-mesh sieve to obtain a mixture;

[0034] (4) Add the mixture, 6 parts of urea, 3 parts of potassium sulfate and 2 parts of citric acid in sequence to the fermentation product, st...

Embodiment 2

[0036] Same as Example 1, the difference is that the number of raw materials is: 24 parts of vermicompost, 14 parts of fish bone meal, 20 parts of deer marsh soil, 22 parts of red jade soil, 16 parts of peat, 8 parts of urea, 3 parts of potassium sulfate, and 1 part of citric acid , 5 parts of compound microorganisms.

Embodiment 3

[0038] Same as Example 1, the difference is that the number of raw materials is: 21 parts of vermicompost, 12 parts of fish bone meal, 16 parts of deer marsh soil, 20 parts of red jade soil, 13 parts of peat, 5 parts of urea, 2 parts of potassium sulfate, and 1 part of citric acid , 3 parts of compound microorganisms.

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Abstract

The invention discloses an environment-friendly modifier for improving saline-alkali soil and a preparation method of the environment-friendly modifier, and belongs to the technical field of soil improvement. The improver is prepared from the following raw materials: wormcast, fish bone meal, Kanuma soil, akadama soil, turf, urea, potassium sulfate, citric acid and compound microorganisms. The preparation method comprises the following steps: fermenting wormcast and fishbone dust under the action of compound microorganisms to obtain a fermentation product; mixing the Kanuma soil, the akadama soil and the turf, and crushing to obtain a mixture; and sequentially adding the mixture, urea, potassium sulfate and citric acid into the fermentation product, and uniformly stirring to obtain the environment-friendly modifier for improving the saline-alkali soil. When the soil conditioner is applied to saline-alkali soil, the organic matter content and the moisture content of the soil can be remarkably increased, the volume weight of the soil can be reduced, the pH value of the soil can be adjusted, the salt content can be reduced, and the soil conditioner has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to an environment-friendly improver for improving saline-alkali soil and a preparation method thereof. Background technique [0002] Soil salinization refers to the process in which the salt in the bottom soil or groundwater rises to the surface with capillary water, and after the water evaporates, the salt accumulates in the surface soil. The hazards of soil salinization include: when the soluble salt content in the soil increases, the osmotic pressure of the soil solution will decrease, and the water potential will decrease, which will cause difficulty in absorbing water for the plant roots, and "physiological drought" will appear. wilting and death; when the concentration of certain ions in the soil is too high, it will hinder the absorption of other ions by plants and make the plant nutrition unbalanced; in saline-alkali land, the high concentration of some ions will le...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05F17/20C09K17/40C09K101/00C09K109/00
CPCC05B17/00C05F17/20C05G3/80C09K17/40C09K2101/00C09K2109/00C05C9/00C05D1/02C05F3/00C05F11/00C05F11/02C05F11/08Y02W30/40
Inventor 李进段婷婷陈敏忠朱银玲吴方平
Owner GUANGDONG OCEAN UNIVERSITY
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