Preparation and matching improvement method of saline-alkali soil conditioner

Abstract

The invention discloses a preparation and matching improvement method of a saline-alkali soil conditioner, which comprises the following steps of: S1, weighing raw materials in parts by mass: 200-320parts of residue of furfural, 110-120 parts of decomposed organic fertilizer, 50-65 parts of organic material, 70-80 parts of fly ash of a biomass power plant, 15-20 parts of inorganic fertilizer, 25-40 parts of amino acid and 5-10 parts of polyacrylamide; and S2, mixing the raw materials: placing the fly ash of the thermal power plant using biomass as a raw material into a vessel as a main material, adding the residue of furfural, the decomposed organic fertilizer, the organic material, the amino acid and the polyacrylamide, and then uniformly stirring. By means of the method, soil structureis effectively improved, mineral elements are slowly released, and utilization of the fertilizer is greatly improved; since a certain amount of the inorganic fertilizer is added, the soil moisture iskept to a certain extent, the soil aggregate structure is improved, the fertilizer efficiency is improved further; and moreover, a certain amount of nutrient substances can be provided for crops, so that the crop yield is increased, the economic benefit of farmland is improved, and the income of farmers is increased.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to the preparation of a saline-alkali soil conditioner and a matching improvement method. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. The essence of the formation is mainly due to ground evaporation, and the salt water rises to the surface layer with the capillary action of the soil. After the water evaporates, the salt remains on the soil surface, and various soluble salts are redistributed horizontally and vertically on the ground, so that the salt gradually accumulates on the soil surface in the salt-collecting area to form a saline-alkali land. According to incomplete statistics from UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which 99.13 million hectares are in my country. The formation of alkaline so...

AI Technical Summary

Problems solved by technology

[0003] Although countries all over the world have intensified efforts to control and improve saline-alkali soil degraded land in recent years, such as taking measures such as underground pipe drainage, irrigation to wash salt, increasing application of organic fertilizers, alien soil pressure alkali, and returning straw to the field, etc., and achieved certain results, However, the transformation period is long, the construction is complicated, the investment and cost are high, and maintenance and reconstruction are still required for a certain period

Apply gypsum, black alum, desulfurized gypsum slag, steel slag powder and other amendments to alkaline soil, alkaline soil, and soda saline soil to reduce or eliminate soil alkali content and improve soil physical and chemical properties. Chemical improvement is an effective method for saline-alkali land reconstruction with simple construction and short cycle time , but there is also the potential danger of secondary pollution from harmful heavy metals