Crop soil purifying agent and preparing method thereof

Abstract

The invention relates to a crop soil purifying agent and a preparing method thereof, and belongs to the technical field of purifying of pesticide and heavy metal residues in crop soil. The crop soil purifying agent is prepared from, by weight, 2-15 parts of a flos daturae extraction solution, 10-50 parts of a liquorice extraction solution, 1-10 parts of a henbane extraction solution, 2-15 parts of a scutellaria baicalensis extraction solution, 2-15 parts of a radix sophorae flavescentis extraction solution, 1-10 parts of a Chinese mahonia extraction solution, 0.05-0.3 part of calcium disodium ethylene diaminetetracetate and 0.5-1 part of sodium thiosulfate. According to the crop soil purifying agent and the preparing method, the specific traditional Chinese medicine extraction solutions and the other specific raw materials are combined in cooperation with the specific ratio to prepare the soil purifying agent, use of fertilizers and pesticide in the farming growing period is not influenced by the purifying agent, the farming procedure is not changed, and the yield of crops is not influenced and even can be increased. After the soil purifying agent is used, no pesticide residue of the crops can be completely achieved, and the content of heavy metal is also greatly reduced.

Description

technical field [0001] The invention relates to a soil purifier and a preparation method thereof. More specifically, the invention relates to a crop soil purifier and a preparation method thereof, belonging to the technical field of purification of pesticide and heavy metal residues in crop soil. Background technique [0002] Environmental protection, safety and health are people's pursuit. With the development and progress of society, in order to pursue high yield and high harvest, and to ensure that crops are not infested by diseases and insect pests, a large amount of chemical fertilizers and pesticides are used, coupled with serious industrial pollution, resulting in pesticide and heavy metal residues in the soil, which in turn causes residues in crops. At the same time, it will also pollute groundwater, affecting people's health, and the environment on which people live is constantly threatened. According to statistics from relevant departments, about 60% of my country's...

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Problems solved by technology

[0006] The present invention aims to solve the problem that the prior art can only purify part of the pesticide residues, and the purification effect on heavy metals is not good, and provides a crop soil purifier, which has simple raw materials, low production cost, and can remove all pesticide residues , heavy metals are greatly reduced, achieving the goal of zero pesticide residues, and will not affect the normal growth and cultivation of crops

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