A kind of remediation method of soil pesticide residue

Abstract

The invention discloses a method for remediating soil pesticide residues. The method comprises the following steps: 1) performing deep ploughing, deep scarification and straw turnover; 2) laying a layer of beta-cyclodextrin grafted fibers at the bottom of soil; 3) irrigating; 4) regulating the pH value to be 6.0-7.0, and adding microbes; and 5) intercropping, namely intercropping plants capable ofadsorbing pesticide residues and corn or soybeans in the soil treated in the step 4), so that the aims of absorbing the pesticide residues and increasing yield can be achieved. According to the method for remediating soil pesticide residues provided by the invention, physical, chemical and biodegradable manners are combined, so that the pesticide residues in the soil can be reduced, the soil structure is deeply improved, beneficial bacteria in the soil and dormant active organic matters are activated, and the soil vitality is wakened. The adopted remediation agent is mild, and the original equilibrium system of the soil is not damaged.

Description

technical field The invention relates to the field of remediation of pesticide residues, in particular to a method for remediation of soil pesticide residues. Background technique The use of pesticides in agricultural production has made an indelible contribution to eliminating pests and diseases, eradicating weeds, and increasing agricultural production. However, due to the use of high-toxicity, high-residue, and refractory pesticides, it has also seriously affected the ecological environment and human health. hazards. According to statistics, more than 4 million tons of pesticides are used in the world every year, and more than 90% of the pesticides are left in the soil, air and water. It exists in the form of organic phosphorus or chlorine, especially BHC (BHC), DDT (DDT), etc. are not easy to decompose, which has buried hidden dangers to people's health, and at the same time caused environmental pollution and resource damage. In recent years, people's awareness of env...

AI Technical Summary

Problems solved by technology

In view of this, the purpose of the present invention is to provide a method for remediating soil pesticide residues for the deficiencies in the prior art, which solves the environmental and health problems caused by pesticide residues