Saline soil improvement agent and saline soil improvement method

A soil conditioner and conditioner technology, applied in the field of saline soil conditioner and saline soil improvement, can solve problems such as limitations, and achieve the effects of adjusting electrical conductivity, facilitating leaching, and increasing soil nutrient content

Inactive Publication Date: 2019-08-09
SHANGHAI INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only using flue gas desulfurization gypsum itself as a modifier has many defects due to the limitation of its own properties.

Method used

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  • Saline soil improvement agent and saline soil improvement method
  • Saline soil improvement agent and saline soil improvement method
  • Saline soil improvement agent and saline soil improvement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A saline soil improver, the mass ratio of the improver is 70-80 parts of garden waste compost, 10-15 parts of flue gas desulfurization gypsum, 5-6 parts of ammonium sulfate, 10-10 parts of 1% emulsifier OP-10 solution 12 servings.

[0021] Using flue gas desulfurization gypsum can optimize soil structure and reduce soil pH; garden waste composting can improve soil water permeability and air permeability, increase soil nutrient content, thereby improving soil physical and chemical properties; aluminum sulfate can promote the content of flue gas desulfurization gypsum Carbonate removal speed, the reaction of calcium carbonate and calcium sulfite in it is converted into the active ingredient calcium sulfate, reducing the harm of carbonate to saline soil; emulsifier OP-10 can reduce the surface tension of further coastal saline soil , so as to further increase the water permeability of the soil under the action of rainfall, which is conducive to the leaching of soil salt. ...

Embodiment 2

[0025] The present embodiment provides a method for improving saline soil, comprising the following steps: composting and decomposing treatment, plowing the saline soil, mixing and preparing an improving agent, covering the saline soil with the improving agent, and mixing.

[0026] see figure 1 , specifically, specifically include the following steps:

[0027] (1) Composting and decomposing treatment: collect urban landscaping litter, use a pulverizer to crush and sieve, and select crushed materials with a particle size below 1.5cm and fully mix them with biological bacterial fertilizer starter solution for composting and decomposing treatment; urban gardening Greening litter mainly refers to plant branches, fallen leaves, grass clippings and other wastes generated during the greening pruning process.

[0028] (2) Tilling the saline soil: use a tiller to plow the saline soil, and the plowing depth should be at least 50cm;

[0029] (3) Mixing preparation of improver: Compost ...

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Abstract

The invention discloses a saline soil improvement agent and a saline soil improvement method. The improvement agent is prepared from, by mass, 70-80 parts of garden waste compost, 10-15 parts of fluegas desulfurization gypsum, 5-6 parts of ammonium sulfate and 10-12 parts of a 1% emulsifier OP-10 solution. The saline soil improvement method comprises the following steps of composting and decomposition treatment, saline soil ploughing, improvement agent mixing and preparation, improvement agent covering for saline soil and mixed turning. The improvement agent can reduce the pH of coastal saline soil, regulate the conductivity of the saline soil, increase soil nutrients, increase the plant biomass, and increase the nutrient content in plants.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a saline soil improvement agent and a saline soil improvement method. Background technique [0002] Due to the shortage of land resources and the weak awareness of land resource protection, many lands in my country have experienced salinization or secondary salinization. With the acceleration of urbanization, a large amount of saline soil needs to be used for urban development and construction. However, in the construction of urban greening, due to the high salt content of saline soil and poor nutrient utilization rate, the growth of plants is limited, which limits agricultural and forestry production and greening construction. Many coastal cities have expanded the usable area of ​​the city by reclamation of the sea, and the salinization of this part of the land is also relatively serious. It will take decades or even longer to improve the saline soil by rain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01B79/02B09C1/08C09K101/00C09K109/00
CPCA01B79/02B09C1/08B09C2101/00C09K17/40C09K2101/00C09K2109/00
Inventor 贺坤董雷雷马昭会
Owner SHANGHAI INST OF TECH
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