Desulfurized gypsum capable of improving wheat field soil and production process thereof

Abstract

The invention relates to the technical field of wheat field soil improvement, in particular to desulfurized gypsum capable of improving the wheat field soil. The desulfurized gypsum is prepared from the following ingredients in parts by weight: 50 to 100 parts of limestone, 10 to 20 parts of flyash, 20 to 40 parts of phosphogypsum, 5 to 7 parts of bentonite, 5 to 8 parts of desulphurized waste, 30 to 50 parts of auxiliary agents, 3 to 6 parts of silica fume and 5 to 10 parts of fiber ether. The invention also discloses a production process of the desulfurized gypsum capable of improving the wheat field soil. The production process comprises the following steps of S1, raw material preparation, S2, auxiliary material preparation, S3, desulfurization treatment, S4, oxidization treatment, S5, fusion treatment, S6, auxiliary addition, S7, dewatering treatment, and S8, final forming. The desulfurized gypsum has the advantages that the existing raw materials are used, so that the soil alkalinity is reduced; the soil fertility can be further improved through plant extraction liquid and nutrition liquid; nutrition ingredients are provided for the crop growth; the land capability is improved; the soil loosening is achieved; the fertilizer effect is enhanced, so that the soil salinization phenomenon is gradually and fundamentally controlled.

Description

technical field [0001] The invention relates to the technical field of improving wheat field soil, in particular to a desulfurized gypsum capable of improving wheat field soil and a production process thereof. Background technique [0002] Domestic soil improvement, especially the methods and technologies of saline-alkali land improvement can be roughly summarized as follows: physical improvement: leveling the land, deep plowing and sunning, loosening the soil in time, raising the terrain, improving soil in micro areas; water conservancy improvement: supporting irrigation and drainage, storage and pressure Salt, irrigation salt, underground salt drainage; chemical improvement: application of gypsum, phosphogypsum, superphosphate, humic acid, peat, vinegar residue, etc.; Bacterial fertilizer etc., yet the shortcoming and the technical problem that existing technology exists are: complicated process, high cost, effect is not very satisfactory. Contents of the invention [0...

AI Technical Summary

Problems solved by technology

[0002] Domestic soil improvement, especially the methods and technologies of saline-alkali land improvement can be roughly summarized as follows: physical improvement: leveling the land, deep plowing and sunning, loosening the soil in time, raising the terrain, improving soil in micro areas; water conservancy improvement: supporting irrigation and drainage, storage and pressure Salt, irrigation salt, underground salt drainage; chemical improvement: application of gypsum, phosphogypsum, superphosphate, humic acid, peat, vinegar residue, etc.; Bacterial fertilizer, etc., but the shortcomings and technical problems of the prior art are: complex process, high cost, and unsatisfactory effect