A method for biological improvement of saline-alkali soil

A saline-alkali land and soil technology, which is applied in the direction of soil preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of large-scale implementation difficulties, short service life, and long improvement cycle, and achieve the suppression of fungi, nematodes, and plant root diseases and insect pests , save cost, improve the effect of soil compaction
CN112189395BActive Publication Date: 2021-09-03GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI
Publication Date
2021-09-03

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Abstract

The invention provides a method for biologically improving saline-alkali soil, mainly by planting salt-tolerant plants such as alfalfa on the saline-alkali land to improve the saline-alkali land, improve the land utilization rate, and solve the harm of salinization to the land. Among them, physical, chemical and biological methods are used to comprehensively improve saline-alkali land, and through deep plowing and subsoiling, biological fertilizers, microbial agents, and alfalfa planting, rationally discharge salt and prevent salt return; and use acidity regulators to reduce the salinity and pH value, in order to facilitate the growth of alfalfa, to achieve the effect of bioremediation of saline-alkali land.
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Description

technical field

[0001] The invention belongs to the technical field of saline-alkali land treatment, and in particular relates to a method for biologically improving saline-alkali land soil. Background technique

[0002] Saline-alkali land is formed by redistribution of soluble salts in the soil and accumulation to the surface under unfavorable natural conditions such as climate, topography, soil texture, and hydrology. Of course, the unreasonable development of water and soil resources and the extensive farming system are also important factors for soil salinization.

[0003] At present, the improvement methods of saline-alkali land mainly include hydraulic engineering improvement method, agricultural production improvement method, chemical improvement method and biological improvement method. The water conservancy improvement method mainly uses water conservancy measures such as irrigation and drainage to bring the salt in the area to the outside. The agricultural improve...

Claims

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