Method for promoting salt leaching of saline alkali soil

A technology of leaching and soil improvement, applied in the field of promoting salt leaching of saline-alkali soil, can solve problems such as ecological environment impact and waste

Inactive Publication Date: 2020-06-09
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a large number of sunflower stalks are not used as a resource, but are discarded at will, causing huge waste. In some areas, sunflower stalks are even disposed of by burning, thus turning "resources" into "pollution sources" and affecting the ecology. great impact on the environment

Method used

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  • Method for promoting salt leaching of saline alkali soil
  • Method for promoting salt leaching of saline alkali soil
  • Method for promoting salt leaching of saline alkali soil

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1, the method for promoting saline-alkali soil salt leaching

[0033] The basic structure of the present invention is as figure 1 As shown, before planting and sowing crops in moderate saline-alkali soil, use machinery to ditch the 0-45cm soil layer soil, and spread the flattened sunflower stalks in the 5-10cm segment after cutting on the soil 40-45cm deep , form a straw interlayer 2 with a thickness of 3-5cm; mix the soil improvement product with the soil of 0-40cm soil layer evenly, and backfill it mechanically to form a soil improvement layer 1, and the soil layer 3 is located under the straw interlayer 2.

[0034] The straw interlayer is realized by a method comprising the following steps:

[0035] This technology cuts sunflower stalks into 5-10cm length segments by machinery, flattens them, and spreads them horizontally at a depth of 40-45cm in the soil to form a straw interlayer with a thickness of 3-5cm.

[0036] A method for preparing a soil improve...

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Abstract

The invention discloses a method for promoting salt leaching of saline alkali soil. The invention provides a soil improvement product which is prepared by a method comprising the following steps: (1)inoculating bacillus mucilaginosus into a fermentation medium for culturing to obtain bacillus mucilaginosus fermentation liquor; (2) composting, and thoroughly decomposing the garden waste to obtaingarden waste compost; and (3) mixing the garden waste compost, bentonite and the bacillus mucilaginosus fermentation liquor in proportion to obtain the soil improvement product. The soil improvement product provided by the invention is combined with the method for promoting salt leaching of saline alkali soil, the soil fertility and the soil physical structure are improved, irrigation and salt washing are facilitated, and earth surface salt return is inhibited.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for promoting salt leaching of saline-alkali soil. Background technique [0002] Due to the special geographical environment and climatic conditions, the area of ​​saline soil in Northwest my country is relatively large and widely distributed. In these areas, large washing salt is used as the main improvement measure, but often due to the unsound irrigation and drainage system, it is easy to cause groundwater pollution. The level rises, causing secondary salinization of the soil. In the process of development and utilization of saline-alkali cultivated land resources, on the basis of rational irrigation and drainage, scientific and reasonable soil cultivation management measures can create a suitable soil environment for crop growth and development. The natural and geographical conditions of the Hetao Irrigation Area in Inner Mongolia are special, and the water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/00C05G3/80A01B79/02C09K101/00
CPCA01B79/02C05D9/00C05G3/00C09K17/40C09K2101/00
Inventor 李玉义张宏媛逄焕成王婧刘娜冀宏杰
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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