Saline-alkaline land soil improvement method adopting soil deep loosening agent containing halophile

Abstract

The invention provides a saline-alkaline land soil improvement method adopting a soil deep loosening agent containing halophile. The soil improvement method comprises a step of applying the soil deep loosening agent. The soil deep loosening agent comprises the components of, by mass, 10-16 parts of black mica flake, 2-5 parts of a halophilic methanogen culture, 4-8 parts of a salt marsh halobacterium culture, 12-15 parts of melaleuca stone, 7-15 parts of humic acid-polyacrylic acid, 6-10 parts of wood powdery activated carbon, 0.4-0.8 parts of an acrylamide water-retaining agent, 5-9 parts of boric acid, 3-7 parts of zinc sulfate, and 5-8 parts of bean meal. The method provided by invention has the following advantages: 5 months after soil improvement, soil salt content is 0.21-0.26%, soil pH is 7.2-7.4, and soil bulk density is 0.90-0.98g / cm<3>. Soil microorganism total amount, soil water-holding capacity and soil water stable aggregate content are improved, and soil nutrient is increased.

Description

technical field [0001] The invention provides a soil improvement method, specifically a soil improvement method for saline-alkali land using a soil subsoiler containing halophilic bacteria, and belongs to the technical field of soil improvement. Background technique [0002] Saline-alkali soil is a general term for saline and alkaline soils that are too salty for most plants to yield or grow. Because most of the soluble salt in the saline-alkali soil is sodium salt, the soil is sticky and heavy, the soil colloid is dispersed and emulsified, the air permeability is poor, it swells and becomes muddy when it encounters water, and it shrinks and hardens when it loses water, which seriously affects the germination and normal development of plants. In addition, the soil has too much sodium ions Alkaline reaction directly destroys plant tissue, and the root system of crops is also perishable, which affects nutrient conversion and makes phosphorus fertilizer and trace elements insol...

AI Technical Summary

Problems solved by technology

[0006] (2) While reducing the salinity and pH of the soil, it is impossible to effectively improve the structure of the soil. Improve the structure of the soil, including reducing soil bulk density, increasing the total number of soil microorganisms, increasing soil water holding capacity, and increasing the content of water-stable aggregates in the soil ;

[0007] (3) While reducing the salinity and pH of the soil, it cannot effectively increase soil nutrients and improve soil fertility;

[0008] (4) It takes a long time and a lot of investment to improve the saline-alkali soil with the existing technology

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