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A saline-alkali soil remediation agent suitable for semi-arid climate zone, its preparation method, application and soil remediation method

A soil remediation agent and saline-alkali soil technology, which is applied in the field of saline-alkali soil remediation agent, can solve the problems of complex operation, high application cost, and long time consumption, and achieve the effect of improving the ecological environment and low cost

Active Publication Date: 2020-09-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical method mainly adjusts the soluble salt composition and pH of the soil through humic acid or chemical amendments; there are disadvantages such as easy to produce toxic side effects, and high cost of large-scale application
The biological method is mainly to grow salt-tolerant plants or use microbial fertilizer; there are disadvantages such as complicated operation and long time-consuming

Method used

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  • A saline-alkali soil remediation agent suitable for semi-arid climate zone, its preparation method, application and soil remediation method
  • A saline-alkali soil remediation agent suitable for semi-arid climate zone, its preparation method, application and soil remediation method
  • A saline-alkali soil remediation agent suitable for semi-arid climate zone, its preparation method, application and soil remediation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Take 75 kg of sun-dried corn stalks (water content below 10%), crush them, add 40 kg of natural water bottom mud, 25 kg of sunflower oil meal, 2 kg of zeolite and 2 kg of microbial inoculum, microbial inoculum includes equal weight Microbial agent a and microbial agent b, microbial agent a is composed of yeast, lactic acid bacteria, and Trichoderma in equal proportions, and microbial agent b is composed of streptomyces, Bacillus megaterium, Bacillus subtilis, and nitrogen-fixing bacteria at a ratio of 1:0.5 : 0.5:1 composition, mix 37.5 kg of straw, 1 kg of zeolite, 12.5 kg of sunflower oil meal, and 1 kg of bacterial agent a, and perform ultrasonic treatment at the same time. The specific ultrasonic parameters are frequency 20kHz, power 40W, and ultrasonic temperature 26°C; 3 1. Stir the ultrasonically treated mixture with 20 kg of bottom mud evenly; 4. Pile up the evenly stirred mixture for anaerobic fermentation. The fermentation is suspended until the straw and b...

Embodiment 2

[0069] 1. Take 60 kg of sun-dried corn stalks (water content below 10%), crush them, add 50 kg of natural water bottom mud, 20 kg of sunflower oil meal, 2 kg of zeolite and 1.75 kg of microbial inoculum. The microbial inoculum includes equal weight Microbial agent a and microbial agent b, microbial agent a is composed of yeast, lactic acid bacteria, and Trichoderma in equal proportions, and microbial agent b is composed of streptomyces, Bacillus megaterium, Bacillus subtilis, and nitrogen-fixing bacteria at a ratio of 1:0.5 : 0.5:1 composition, 30 kg of straw, 1 kg of zeolite, 10 kg of sunflower oil meal, 0.875 kg of bacterial agent a were mixed evenly, and ultrasonic treatment was performed at the same time. The specific ultrasonic parameters were frequency 25kHz, power 42W, and ultrasonic temperature 27°C; 3 1. Stir the ultrasonically treated mixture with 25 kg of bottom mud evenly; 4. Pile up the evenly stirred mixture for anaerobic fermentation. The fermentation is suspend...

Embodiment 3

[0072]1. Take 90 kg of sun-dried corn stalks (water content below 10%), crush them, add 30 kg of natural water body sediment, 30 kg of sunflower oil meal, 2 kg of zeolite and 2.5 kg of microbial inoculum, microbial inoculum includes equal weight Microbial agent a and microbial agent b, microbial agent a is composed of yeast, lactic acid bacteria, and Trichoderma in equal proportions, and microbial agent b is composed of streptomyces, Bacillus megaterium, Bacillus subtilis, and nitrogen-fixing bacteria at a ratio of 1:0.5 : 0.5:1 composition, 45 kg of straw, 1 kg of zeolite, 15 kg of sunflower oil meal, 1.25 kg of bacterial agent a were mixed evenly, and ultrasonic treatment was performed at the same time. The specific ultrasonic parameters were frequency 30kHz, power 45W, and ultrasonic temperature 26°C; 3 1. Stir the ultrasonically treated mixture with 15 kg of bottom mud evenly; 4. Stack the evenly stirred mixture into stacks for anaerobic fermentation. When the core temperat...

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Abstract

The invention discloses a saline alkali soil remediation agent which comprises the following components in parts by weight: 600-900 parts of plant straw, 300-500 parts of bottom mud, 20-30 parts of sunflower oil meal, 15-25 parts of zeolite, and 15-25 parts of a microbial agent; wherein the microbial agent comprises a microbial agent a and a microbial agent b which are equal in weight, the microbial agent a is prepared from saccharomycetes, lactic acid bacteria and trichoderma according to the weight ratio of 1: 1: 1, and the microbial agent b is prepared from streptomyces, bacillus megatherium, bacillus subtilis and nitrogen-fixing bacteria according to the weight ratio of 1: 0.5: 0.5: 1. The saline alkali soil remediation agent can be used for repairing saline alkali soil and is suitablefor semiarid climate areas. According to the saline alkali soil remediation agent, secondary pollution does not exist in the remediation process, and the problems that the cost is too high, and symptoms and root causes are not treated are solved. The repairing method is easy to operate, and the defects that operation is complex and the period is long are overcome.

Description

technical field [0001] The invention relates to a saline-alkali soil remediation agent suitable for semi-arid climate areas and its application in saline-alkali soil restoration, belonging to the technical field of soil remediation. Background technique [0002] Saline-alkali soil is the general term for saline soil and alkaline soil in the folk. The salt content in the soil is above 0.1%-0.2%, or the soil colloid absorbs a certain amount of exchangeable sodium, and the alkalization degree is above 15%-20%, which is harmful to the normal operation of crops. The growth is a type of saline-alkali soil, or saline soil. China is mainly distributed in the inland arid and semi-arid areas of North China, Northeast China and Northwest China, and it is also distributed in coastal areas along the eastern coast including Taiwan Province, Hainan Province and other islands. In the semi-arid climate zone in Northeast my country, the evapotranspiration obviously exceeds the annual precipi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/42C09K101/00
CPCC09K17/42C09K2101/00
Inventor 赵玉岩张泽宇汤肖丹李兵
Owner JILIN UNIV
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