Soil conditioning, fertility-increasing and salt-reducing agent for sulfate-type saline soil and application thereof to sculellaria barbata planting

Abstract

The invention discloses a soil conditioning, fertility-increasing and salt-reducing agent for sulfate-type saline soil. The soil conditioning, fertility-increasing and salt-reducing agent comprises the following ingredients by mass: 42-50 parts of phosphogypsum, 15-18 parts of fulvic acid, 6-10 parts of straw, 4-11 parts of medical stone, 7-9 parts of bagasse, 10-20 parts of coal ash, 6-9 parts of aluminium sulfate, 3-8 parts of bean cake, 2-3 parts of hawthorn fruit powder, 0.5-0.8 part of a water-retaining agent, 0.6-0.9 part of lauryl ethoxy ammonium sulfate, 10-16 parts of starch-acrylonitrile, 15-18 parts of hollyhock powder, 10-13 parts of fennel powder and 0.01-0.05 part of halomonas halophiles. The invention further discloses application of the soil conditioning, fertility-increasing and salt-reducing agent to sculellaria barbata planting. The soil conditioning, fertility-increasing and salt-reducing agent and the application thereof to sculellaria barbata planting have the benefits that 12 months after sculellaria barbata planting, sulfate in 100 g of soil has the milliequivalent of 0.09-0.13, the available phosphorus content and the organic matter content of soil are both increased, and the soil moisture permeability and the soil water-retaining capacity are improved.

Description

technical field [0001] The invention provides a sulfuric acid type saline soil soil conditioner, fertilization, salt reduction agent and its application in barbatae planting, belonging to the technical field of soil improvement. Background technique [0002] The formation of saline soil is mainly related to a series of human factors such as geographical location, topography, climatic conditions, and hydrogeological relics. For example: rocks on the surface of the earth will produce a small amount of soluble salts due to weathering. Part of these salts will be dissolved by surface water and seep into the soil with the water flow to replenish groundwater, thereby increasing the mineralization of groundwater. In the dry season, the groundwater with high salinity will rise to the surface or close to the surface due to the capillary gravity in the soil. After evaporation, the salt in the water will crystallize and precipitate, and accumulate on the surface or the soil layer not d...

AI Technical Summary

Problems solved by technology

[0004] There are the following deficiencies in existing technologies for transforming sulfuric acid-type saline soil: (1) The ability to reduce the sulfate content and total salt content in the soil is limited; (2) The fertility of the soil is not improved enough; (3) The water infiltration and water retention capacity of the soil not effectively improved

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