Method for comprehensively improving and repairing soil and application thereof

Abstract

The invention relates to the technical field of soil remediation, and particularly discloses a method for comprehensively improving and repairing soil and application thereof. The method includes the steps of S1, conducting soil disinfection treatment: harmful microorganisms in the soil are killed through a physical or biological method; S2, conducting soil organic fertilization: a bio-organic fertilizer is supplemented or organic materials are returned to a field locally and nearby for transformation, and soil organic matters and beneficial microorganisms are increased; S3, balancing mineral nutrition in the soil: the nutrient condition of the soil is detected and analyzed, mineral elements are supplemented in a targeted mode, and the mineral nutrition is balanced in the soil; and S4, conducting soil heavy metal passivation: a passivator is added into the soil, and heavy metal in the soil is passivated through the passivator. According to the method for comprehensively improving and repairing the soil, the harmful microorganisms and the heavy metal in the soil can be effectively removed, the soil fertility and the fertilizer retention capacity are improved, and market requirements are met.

Description

technical field [0001] This application relates to the technical field of soil remediation, more specifically, it relates to a method for comprehensively improving and remediating soil and its application. Background technique [0002] With the improvement of people's living standards, agriculture has also developed rapidly. However, due to urban pollution and long-term application of various agricultural chemicals, soil pollution is caused to varying degrees, and soil pollution directly affects the growth and yield of crops. When remediating soil pollution, a soil conditioner is generally added to the soil, and the soil conditioner and soil are evenly mixed to achieve the purpose of improving soil pollution. The applicant found in practical application that although the soil improver can improve the porosity and fertility of the soil, the repaired soil still contains a large number of harmful microorganisms, that is, the soil improver cannot prevent and control the harmful...

AI Technical Summary

Problems solved by technology

The applicant found in practical application that although the soil improver can improve the porosity and fertility of the soil, the repaired soil still contains a large number of harmful microorganisms, that is, the soil improver cannot prevent and control the harmful microorganisms in the soil; some After soil disinfection, the micro-ecological environment of the soil is destroyed; some soils have potential safety hazards in the quality of agricultural products due to heavy metal pollution