Method for retarding soil acidification and increasing content of fixed inorganic carbon in soil

Through the method of applying wollastonite in the soil after crushing, the problems of soil acidification and carbon fixation are solved, the stability of soil pH and carbon sequestration capacity are improved, and the carbon sequestration capacity is improved, with good economic benefits and environmental impact.

CN119631632APending Publication Date: 2025-03-18HUANENG TONGLIAO WIND POWER CO LTD +1
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Patent Information

Application Number
CN202510132920.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Soil acidification leads to a decrease in soil fertility, and it is difficult for the existing technology to maintain stable soil pH for a long time, and there are problems such as high resource consumption, high cost, and great impact on other soil components.

Method used

Through the optimization of wollastonite crushing and application methods, the crushed wollastonite is evenly spread on the soil surface and mixed into the soil tillage layer. Wollastonite reacts with the acidic substances in the soil to form stable bicarbonate and fix gaseous CO2 to alleviate soil acidification and increase the soil inorganic carbon content.

Benefits of technology

Effectively slow down soil acidification, improve soil carbon sequestration capacity, improve soil structure and fertility, reduce carbon emissions from agricultural production, and is relatively low in cost, suitable for widespread promotion.

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Abstract

The invention provides a method for retarding soil acidification and increasing the content of fixed inorganic carbon in soil, and relates to the technical field of soil improvement. According to the method, the wollastonite is firstly crushed, then the crushed wollastonite is uniformly spread on the surface of the soil and then mixed into a soil plough layer, and the improvement of retarding soil acidification and increasing soil fixed inorganic carbon is realized. The crushed wollastonite is spread on the surface of the soil and then mixed into a plough layer to generate stable bicarbonate which is beneficial to sealing of inorganic carbon in the soil, acidic substances in the soil can be remarkably neutralized, the soil acidification process is relieved, the air permeability and the water binding capacity of the soil are improved, and then the fertility of the soil is improved; crop root growth is promoted, nutrient absorption of plants is improved, crop yield and quality are further improved, and the method is an efficient and low-cost acidified soil improvement technology.
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