Parent material remediation method for acid soil

Abstract

The invention discloses a parent material remediation method for acid soil, and particularly relates to the technical field of soil improvement and remediation. The method comprises the following steps of: detecting the physical and chemical properties of to-be-remediated soil, analyzing the pH value and the content of exchangeable calcium and magnesium, selecting a mineral source soil-forming parent material, a mineral source humic acid raw material and an alkaline acid neutralization material, and respectively crushing and screening the raw materials; uniformly mixing the mineral source humic acid powder with powder of the alkaline acid neutralization material in proportion, and adding water to carry out curing reaction so as to prepare a pasty buffer type alkaline acid neutralization material; uniformly mixing the mineral source soil-forming parent material powder with the buffer type alkaline acid neutralization material in proportion to prepare a parent material compound type soilconditioner; then evenly applying the soil remediation agent to to-be-remediated cultivated land, and conducting turning, digging, plowing and harrowing to mix the agent with the to-be-remediated cultivated land evenly, thus reaching the effect of even soil application of a full-plowing layer; after remediation is completed and tillage is started, detecting the soil once every year, and preparingand applying the parent material compound type soil conditioner once according to conditions.

Description

technical field

[0001] The invention relates to the technical field of soil improvement and restoration, in particular to a parent material restoration method for acidic soil. Background technique

[0002] The main reason for the low quality of cultivated land is soil degradation. The causes of soil degradation, in addition to natural factors such as soil erosion and climate deterioration, are mainly a series of problems such as soil nutrient deficiency, compaction, acidification, pollution and shallowing of the cultivated layer caused by unreasonable agricultural cultivation. Among them, soil acidification is a common problem in the soil degradation of cultivated land in southern my country.

[0003] The acidification of cultivated land soil is essentially an irreversible malignant development process of soil parent material abnormality. Under the influence of factors such as rainwater leaching, continuous cultivation for many years, and excessive application of chemical f...