Improvement method of anti-acid field

Abstract

The invention relates to the technical field of soil modification and repair, in particular to an anti-acid field modification method. The anti-acid field modification method comprises anti-acid field moisture management and anti-acid field organic modification. The anti-acid field moisture management adopts a mode that the anti-acid field is in the flooding returning state in the whole growth process of rice. The anti-acid field organic modification comprises the steps of organic fertilizer application increasing, straws returning to the field and winter planting and green manuring. According to the method, through the cultivation measure that the anti-acid field is flooded in the whole growth process of rice and organic matter is supplemented, the pH value and acid buffering performance of the soil plowing layer are improved; the effectiveness of the toxic metal ions is reduced; the bioavailability of the nutrient elements is increased; the soil structure and soil nutrient condition are modified; the growth environment of rice roots is improved, which is beneficial to the growth and nutrient adsorption of the rice roots; the acid poisoning effect of the anti-acid field is reduced; and the yield of the rice in low yield field is improved.

Description

technical field [0001] The invention relates to the technical field of soil improvement and restoration, in particular to an improvement method for anti-acid fields. Background technique [0002] There is a serious shortage of agricultural land resources in my country, and the production load of cultivated land is large. The per capita cultivated land is only 0.11 hectares, and it is still facing threats such as degradation, pollution, and desertification. How to protect the "red line of cultivated land" and ensure "food security" has become a major issue that needs to be solved urgently in our country. question. Improving the productivity of low-yield paddy soil through soil improvement and cultivation measures to adjust the account is one of the important measures to ensure national food security. [0003] Anti-acid field is one of the main low-yielding paddy soil types distributed in the coastal areas of South China, with a distribution area of ​​about 63,397 hectares in ...

AI Technical Summary

Problems solved by technology

However, the engineering improvement measures of draining acid by ditches will cause the acid and heavy metal content in the drainage to exceed the safety threshold, further polluting the surrounding ecosystem; The method of chemical substances such as lime, alkali residue, and soil conditioner is costly, and long-term large-scale use will also cause secondary obstacles to soil compaction

Therefore, there are more or less shortcomings in the existing improvement methods of anti-acid fields, and there are certain limitations, and the improvement measures are single, and there is no scientific and effective comprehensive treatment method, which lacks systematization and integrity. , while lacking clear and specific standards

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