Preparation method and application method of saline-alkali soil improver

Abstract

The invention relates to a preparation method and an application method of a saline-alkali soil improver, and belongs to the field of soil conditioners, wherein the saline-alkali soil improver comprises, by mass, 84-88% of modified desulfurization gypsum, 10.8-15% of ammoniated humic acid, and 0.8-1.2% of anion linear polyacrylamide with a molecular weight of 1000000-2000000. According to the present invention, by combining modified desulfurization gypsum, ammoniated humic acid and anion linear polyacrylamide, the product has characteristics of complementary function, economy and applicability, can improve the soil aggregate structure, increase the organic matters in soil, enhance the stress tolerance, the salt return and the external stress buffer ability of soil, increase the fertility of soil and promote the growth of crops, has low cost, is an environmentally friendly material, can ensure the quality of improved saline-alkali soil and promote the growth of crops, cannot cause secondary pollution to soil, and has low price.

Description

technical field [0001] The invention belongs to the field of soil improvers, and in particular relates to a method for preparing and applying a soil improver for saline-alkali land. Background technique [0002] The formation of soil salinization is mainly the result of the combined effects of climate, soil, water, topography and human activities. Salinized soil has a high pH value, poor air permeability and water permeability, easy to harden the surface, low nutrients and rich in harmful salts Features. Most plants are difficult to survive in saline-alkali soil, and the effective improvement of saline-alkali soil is of great benefit to the development of agriculture and animal husbandry and the improvement of the ecological environment. [0003] The existing technologies on saline-alkali land improvement at home and abroad mainly include: physical improvement technology, chemical improvement technology, biological improvement technology and water conservancy and drainage e...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a soil conditioner for saline-alkali land, to solve the problem of high cost of the existing soil conditioner

[0006] The second object of the present invention is to provide a preparation method of soil conditioner for saline-alkali land, so as to solve the problem of high cost in the preparation method of existing soil conditioner

[0007] The third object of the present invention is to provide a method of applying soil improver in saline-alkali land, so as to solve the problems of unsuitable drainage, unstable effect and limited scope of application in the existing method of applying soil improver

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