Attapulgite tailing saline-alkali soil green tree-planting soil conditioner

Abstract

The invention discloses an attapulgite tailing saline-alkali soil green tree-planting soil conditioner. According to key points of the technical scheme, ingredients include attapulgite tailing compressed nutritive soil, attapulgite tailing charred soil, acidified zeolite particle, acidified straw, desulfurization gypsum, humic acid, powdery saline-alkali soil water retaining and slow release fertilizer, attapulgite clay, ferrous sulfate and water; and the ingredients are stirred and uniformly mixed, and then packaging is carried out, so that the attapulgite tailing saline-alkali soil green tree-planting soil conditioner is obtained. Calcium and magnesium ions contained in the soil conditioner can replace sodium ions on a saline-alkali soil colloid, so that content of exchangeable sodium ions in saline-alkali soil is reduced, and alkalinity of the soil is lowered; meanwhile, fertility of the saline-alkali soil also can be obviously improved, contents of organic matters, calcium, magnesium, silicon, sulfur, nitrogen, phosphorus and potassium in the saline-alkali soil are increased, the aim of improving the saline-alkali soil is achieved, survival rate of green tree planting is improved, and the attapulgite tailing saline-alkali soil green tree-planting soil conditioner disclosed by the invention is applicable to improvement of the saline-alkali soil and green tree planting in thesaline-alkali soil.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to an attapulgite tailings saline-alkali soil greening and tree planting soil conditioner. Background technique [0002] Saline-alkali land means that the salt contained in the soil affects the normal growth of crops. Plants in severe saline-alkali soil areas can hardly survive. Soluble salts reduce the ability of plants to absorb water and nutrients, relatively reduce the content of soil organic matter, seriously lack nitrogen, phosphorus, potassium and trace elements, seriously damage the soil aggregate structure, reduce air permeability, and reduce the activity of aerobic microorganisms , slow soil maturation, resulting in soil compaction. Due to salinization, the physical and chemical properties of the soil deteriorate, and the living conditions of plants deteriorate. The work of greening and tree planting in saline-alkali soil is very difficult, and the survival rate of greening and plant...

AI Technical Summary

Problems solved by technology

[0007] The deficiencies of the above patents are: (1) the "nutrient soil" lacks ingredients for saline-alkali resistance and pH adjustment of saline-alkali land; It can be used in ordinary "original soil greening", but not suitable for "indigenous soil greening in saline-alkali land". In the process of greening and planting trees in saline-alkali land, the survival rate of seedlings is relatively low

[0009] The disadvantages of the above-mentioned patents are: (1) a large amount of sulfur powder (20% to 35%) has been selected in the ingredients. It is a low-toxic hazardous chemical, but the sulfur dioxide produced by its steam and sulfur combustion is highly toxic to the human body, so it is not suitable for saline-alkali soil conditioners

(2) Although "bentonite" is selected in the ingredients, those skilled in the art know that the pH value of sodium-based bentonite is generally 8.5-10.2, and that of calcium-based bentonite is generally 6.9-8.5. "Bentonite" is an alkaline soil. Therefore, "bentonite" has not been acidified and modified, and it is not suitable for soil conditioners in saline-alkali land