Isolation layer and preparation method thereof for prolonging service lifetime of earth soil

Abstract

The invention provides an isolation layer for prolonging the service life of guest soil and a preparation method thereof, which is composed of a microbial organic material layer, straw fallen leaves layer, peat pond mud layer, thin sand layer and raw gypsum layer. The laying method is as follows: first eradicate the plow layer soil with heavy salt damage of 0-40 cm, and then lay the raw gypsum layer, thin sand layer, peat pond mud layer, straw leaf litter layer and microbial organic material layer in sequence. The isolation layer of the invention organically combines the microbial technology, chemical technology and physical technology of salinized soil restoration, improves the physical properties of the plow layer soil, inhibits deep soil from returning to salt, and prolongs the service life of foreign soil.

Description

technical field [0001] The invention relates to an isolation layer for prolonging the service life of foreign soil and a preparation method thereof, belonging to the field of agricultural resources. Background technique [0002] The intensive planting mode of protected cultivation has caused a series of soil problems, among which the secondary salinization of soil is the most serious. Soil salinization in facilities inhibits the beneficial microbial flora of the soil, promotes the proliferation of harmful microorganisms, hinders the decomposition and transformation process of fertilizers, and destroys the balance of nutrient supply and demand between soil and crops, resulting in a decline in soil production capacity, resulting in declines in the yield and quality of agricultural products, and even Hazards such as dead seedlings. Areas with serious soil salinization in facilities will also lead to excessive nitrate content in groundwater and eutrophication of surrounding wat...

AI Technical Summary

Problems solved by technology

Soil salinization in facilities inhibits the beneficial microbial flora of the soil, promotes the proliferation of harmful microorganisms, hinders the decomposition and transformation process of fertilizers, and destroys the balance of nutrient supply and demand between soil and crops, resulting in a decline in soil production capacity, resulting in declines in the yield and quality of agricultural products, and even Hazards such as dead seedlings

Areas with serious soil salinization in facilities will also lead to excessive nitrate content in groundwater and eutrophication of surrounding water bodies, indirectly threatening the safety of drinking water for residents

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