Restoring method for acidified soil

Abstract

The invention discloses a restoring method for acidified soil. 25 kg of soil acidification conditioning agents are applied to soil in per mu of a field; a mixture which is 30-100 cm high is stacked in a vacant field in site one week after the soil acidification conditioning agents are applied, the top of the stack is covered with a layer of straw for light shielding, and the mixture is stacked for 5-10 days, then turned over once and stacked for 15-25 days; 100 kg of an organic water-soluble fertilizer for acidified soil is applied to the soil in per mu of the field; earthworms are inoculated 30 days after the organic water-soluble fertilizer for the acidified soil is applied, the soil is watered regularly to keep wet, the humidity is maintained to range from 70% to 90%, and the temperature is controlled within 30 DEG C; the stacked product is turned and uniformly mixed, ditches are dug, the mixture is applied to the field as a fertilizer, and plowing is performed once; 50 kg of soil acidification improvers are applied to the soil in per mu of the field. The soil acidification conditioning agents, the organic water-soluble fertilizer for the acidified soil and the soil acidification improvers are applied, the earthworms are inoculated, accordingly, the soil acidification degree is remarkably reduced, and the soil fertility is improved.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, in particular to an acidified soil remediation method. Background technique [0002] Soil acidification is a relatively slow process under natural conditions. It usually takes hundreds or even thousands of years for the soil pH to drop by 1 unit. However, the high-input intensive agricultural production in the past 20 years has greatly accelerated the acidification process of farmland soil. The main cause of soil acidification in intensive farmland is excessive fertilization, especially the excessive application of nitrogen fertilizer. [0003] At present, lime substances are generally used in agricultural production to improve acidified soil. The application of lime cannot fundamentally solve the problem of soil acidification, and there are also some adverse effects, such as: reducing soil water permeability, slowing down the growth of leguminous and non-legume crops , reduce plant upt...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for remediation of acidified soil, aiming to solve the problem that the application of existing fertilizers is not conducive to the improvement of acidified soil

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