Mining area land repair agent and repair method

Abstract

The invention discloses a mining area land repair agent and a repair method. The repair agent includes the components by the mass percentage: 60%-70% of an organic matter, 1%-3% of a nitrogen fertilizer, 1%-3% of a phosphate fertilizer, 0.5%-2% of a potash fertilizer, 15%-20% of humic acid, 10%-15% of a mineral powder and 10%-15% of a water retention agent. The repair method comprises the steps: deeply plowing mining area land, thoroughly plowing the land, harrowing the land to be broken and smoothing; applying the water retaining agent to the soil; applying the mining area land repair agent to the soil; and sowing alfalfa seeds in the soil, and managing after seedling emergence. The mining area land repair agent provided by the invention can quickly repair the land, cannot cause secondary pollution on the soil, fully complements plant essential elements in the soil, and enhances the activity of the soil; and the method greatly reduces the cost of repairing the soil, and has the advantages of economy, environmental protection, high repair efficiency and easy popularization.

Description

technical field [0001] The invention relates to the field of soil restoration, in particular to a land restoration agent and a restoration method in mining areas. Background technique [0002] As a problem that restricts the sustainable development of human society, soil pollution is attracting more and more attention from all over the world, especially the land in mining areas, which is more difficult to control. In recent decades, due to global industrialization, a large number of potentially toxic substances have been discharged into the biosphere, including heavy metals, which can enter soil, rivers, and groundwater through various channels. Heavy metals are pollutants that are difficult to control. They have a long incubation period and chronic accumulation of harm. They are not easy to be noticed by people, and they are non-degradable. Once they enter the environment, they will produce a series of persistent pollution and are not easy to be removed. However, the diffi...

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Problems solved by technology

[0005] In order to solve the problems that the soil restoration methods in the prior art are not suitable for land restoration in mining areas, and there are factors that seriously restrict soil restoration in mining area land, which increases difficulties for the restoration of mining area land, the purpose of the present invention is to provide a kind of land restoration in mining areas. Repair agent and repair method

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