Saline-alkali sandy soil modifier and preparation method and application thereof

Abstract

The invention discloses a saline-alkali sandy soil modifier and a preparation method and application thereof, and the saline-alkali sandy soil modifier is prepared from the following raw materials in parts by mass: 70-85 parts of industrial hemp degumming concentrated solution, 5-8 parts of liquorice extracting solution, 8-15 parts of alfalfa extracting solution, 8-15 parts of humus, 2-8 parts of calcium citrate and 3-10 parts of water-soluble compound fertilizer. Wherein the organic matter concentration of the concentrated solution of the industrial hemp degumming solution is greater than or equal to 12000 mg / L; the glycyrrhizic acid content in the liquorice extracting solution is greater than or equal to 7.0%. After the saline-alkali sandy soil modifier is applied into soil, sand grains can be quickly cemented to form aggregates, nutrients and calcium ions can be slowly released, the four core problems of poor structure, low fertility, few organic matters and saline-alkali harm of the Xinjiang saline-alkali sandy land are systematically solved, waste is turned into wealth, and the saline-alkali sandy soil modifier is green, environmentally friendly and beneficial to application and popularization.

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