Method for improving heavily-viscous saline-alkali soil to plant shrubs and application thereof

A soil improvement, saline-alkali soil technology, applied in the field of saline-alkali land greening, can solve problems such as hindering landscaping and development, and achieve the effect of preventing soil salt returning

Inactive Publication Date: 2019-12-17
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Landscaping is the core content of urbanization construction. Many current gardens have serious saline-alkali components, which seriously hinder the development and development of landscaping.

Method used

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  • Method for improving heavily-viscous saline-alkali soil to plant shrubs and application thereof
  • Method for improving heavily-viscous saline-alkali soil to plant shrubs and application thereof
  • Method for improving heavily-viscous saline-alkali soil to plant shrubs and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The soil plasticity index of test area 1 is 18, the content of clay particles (particle size <0.005mm) is 36%, the content of particles with a particle size larger than 0.075mm is 40% of the total volume, and the mass percentage of soil salt at a depth of 0-60cm is 8‰. Ridge the ground (ridge width 0.4m, ridge height 0.5m), build drainage ditches parallel to the ridge at 30m intervals, depth 0.4m, width 1.2m; build drainage ditches perpendicular to the ridge 25m, ditch depth 0.4m, width 1.0m, slope ratio 1:1.5, connected with the surrounding water system, to ensure that the drenching salt water can be discharged, and the excavated soil mound is placed on the soil surface to raise the micro-topography; the soil in the planting area is rotary tilled until the maximum width of the soil block is less than 2cm. Saline-alkali soil synergistic conditioner (prepared according to Example 1 of 201810961893.4, 400kg / mu) and organic fertilizer (prepared according to the method of Ex...

Embodiment 2

[0028] The soil plasticity index of test area 2 is 20, the content of clay particles (particle size <0.005mm) is 40%, the content of particles with a particle size greater than 0.075mm is 37% of the total volume, and the mass percentage of soil salt at a depth of 0-60cm is 7.5‰. Ridge the ground (ridge width 0.4m, ridge height 0.5m), build drainage ditches parallel to the ridge at 30m intervals, depth 0.4m, width 1.2m; build drainage ditches perpendicular to the ridge 25m, ditch depth 0.4m, width 1.0m, slope ratio 1:1.5, connected with the surrounding water system, to ensure that the drenching salt water can be discharged, and the excavated soil mound is placed on the soil surface to raise the micro-topography; the soil in the planting area is rotary tilled until the maximum width of the soil block is less than 2cm. Saline-alkali soil synergistic conditioner (prepared according to Example 1 of 201810961893.4, 400kg / mu) and organic fertilizer (prepared according to the method of...

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Abstract

The invention discloses a method for improving heavily-viscous saline-alkali soil to plant shrubs and application thereof. The method includes the steps of forming ridges on the land in a planting area, and constructing drainage channels at the interval of 25-35 m in the direction parallel to the ridges; constructing drainage ditches at the interval 20-25 m in the direction perpendicular to the ridges, communicating the drainage ditches with a peripheral water system, and laying dug-out mounds on the ground surface for heightening to form microtopography; conducting rotary tillage on the soilin the planting area until the maximum width of a soil block is smaller than 2 cm, applying a saline-alkali soil synergistic conditioner and an organic fertilizer, conducting horizontal and transversedeep plowing on the soil so that the soil conditioner and the organic fertilizer can be sufficiently and evenly mixed with the soil, and covering the root ground surface with a grass mat by the thickness of 1-3 cm after shrub seedlings are planted. By means of the method, the structure of the heavily-viscous saline-alkali soil can be improved, salt pouring can be accelerated, salt returning can be prevented, the nutrient state of the soil is improved, the salt content and pH value of the soil are reduced, the harm of salt and alkali to the greening shrubs is relieved, the survival rate of theshrubs is increased, and the sustainable development of heavily-viscous saline-alkali soil greening is promoted.

Description

technical field [0001] The invention belongs to the field of saline-alkali soil greening, and relates to a method for improving and planting shrubs in heavily sticky saline-alkali soil and an application thereof. Background technique [0002] Soil is one of the basic elements that constitute the environmental ecosystem and the material basis for human survival. It has a certain fertility and can grow loose layers of plants. Saline-alkali soil and acidic soil are the two main types of low-yielding soil. With the development of industry, the area of ​​irrigated land and facility cultivation continues to expand, and seawater intrusion into seashores and tidal flats has a tendency to expand saline-alkali land. Soil salinization has become a worldwide resource and ecological problem. The harm of salinity to plants is mainly reflected in: causing physiological drought of plants, damaging plant tissues, affecting normal nutrition of plants, and affecting the closure of stomata of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G17/00
CPCA01B79/02A01G17/005Y02P60/40Y02A40/22
Inventor 邵天韵隆小华刘兆普李纳高秀美陈哲宇
Owner NANJING AGRICULTURAL UNIVERSITY
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