Saline land improvement method

A technology of saline-alkali land and seeds, applied in the direction of soil preparation methods, fertilizer mixtures, agricultural machinery and implements, etc., can solve problems such as high engineering, maintenance and management costs, high investment in drainage projects, excessive water consumption, etc., to improve permeability ability and nutrient status, improve fertilizer retention, and reduce the effect of soil alkalinity

Inactive Publication Date: 2015-09-23
刘长生 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 1) Large water washing salt consumes too much water resources, which is not conducive to water saving; the project volume is large, and the investment in drainage projects is high, which is uneconomical; the irrigation water source is saline-alkali water, the greater the degree of saline-alkali irrigation
[0012] 2) In the case of high groundwater level (such as coastal saline-alkali land, the groundwater level is only 0.8 meters in the dry season), shallow group wells should be intensively drained and irrigated (the groundwater level is required to be 2.5 meters to 3 meters), and underground pipe salt drainage (requires groundwater The wa...

Method used

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  • Saline land improvement method

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Experimental program
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Effect test

Embodiment 1

[0065] Crush the plant stalks growing on the coastal saline-alkali land into pieces with a length of less than 10 cm, spread them as evenly as possible on the surface of the saline-alkali land, and then continue to spread microbial composite repair materials (150 kg / mu) on the surface of the saline-alkali land in sequence ) and urea (15 kg / mu); mechanical tillage, and the tillage depth is 20-30 cm. After the tillage is completed, the soil after the tillage will be watered thoroughly, and the restoration will be completed after 15-20 days.

[0066] The formula of microbial composite restoration material is: 4 parts of organic manure, 2 parts of humic acid, 0.7 part of agricultural organic waste, 0.2 part of marine organic waste, 0.01 part of liquid bacterial agent, and 0.005 part of solid microbial agent.

[0067] Among them, organic manure includes any proportion of cow manure, pig manure, sheep manure and chicken manure; agricultural organic waste includes any proportion of pe...

Embodiment 2

[0069] Crush the plant stalks growing on the coastal saline-alkali land into pieces with a length of less than 10 cm, spread them as evenly as possible on the surface of the saline-alkali land, and then continue to spread microbial composite restoration materials (200 kg / mu) on the surface of the saline-alkali land ) and urea (15 kg / mu); mechanical tillage, and the tillage depth is 20-35 cm. After the tillage is completed, the soil after the tillage will be watered thoroughly, and the restoration will be completed after 15-20 days.

[0070] The formula of the microbial composite restoration material is: 6 parts of organic manure, 4 parts of humic acid, 3 parts of agricultural organic waste, 0.4 part of marine organic waste, 0.02 part of liquid bacterial agent, and 0.01 part of solid microbial agent.

[0071] Among them, organic manure includes any proportion of cow manure, pig manure, sheep manure and chicken manure; agricultural organic waste includes any proportion of peat, r...

Embodiment 3

[0073] Crush the plant stalks growing on the coastal saline-alkali land into pieces with a length of less than 10 cm, spread them as evenly as possible on the surface of the saline-alkali land, and then continue to spread microbial composite restoration materials (300 kg / mu) on the surface of the saline-alkali land ) and urea (20 kg / mu); mechanical tillage, and the tillage depth is 20-35 cm. After the tillage is completed, the soil after the tillage will be watered thoroughly, and the restoration will be completed after 15-20 days.

[0074] The formula of the microbial composite restoration material is: 4 parts of organic manure, 3 parts of humic acid, 1.4 parts of agricultural organic waste, 0.3 part of marine organic waste, 0.014 part of liquid bacterial agent, and 0.007 part of solid microbial agent.

[0075] Among them, organic manure is cow dung and chicken manure (the weight ratio is 4:1.3); agricultural organic waste includes any proportion of straw, rice husk powder, mu...

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Abstract

The invention provides a saline land improvement method and belongs to the technical field of saline land improvement. The saline land improvement method comprises the following steps of locally smashing straws of plants growing in a saline land and then spreading the straws on the saline land, continuing to sequentially spread a composite microbiological material for renovation and urea on the surface of the saline land spread with smashed straws, and plowing and watering the saline land spread with the smashed straws, the composite microbiological material for renovation and the urea on the surface, wherein the composite microbiological material for renovation comprises raw material components: 4-6 parts by weight of organic manure, 2-4 parts by weight of humic acid, 0.7-3 parts by weight of agricultural organic waste, 0.2-0.4 part by weight of marine organic waste, 0.01-0.02 part by weight of liquid fungicide and 0.005-0.01 part by weight of solid fungicide. The saline land improvement method has the advantages of being low in renovation cost, small in working amount, convenient to operate and free of secondary pollution.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement, in particular to a method for improving saline-alkali land. Background technique [0002] Saline-alkali land refers to the land where the salt contained in the soil affects the normal growth of crops. In areas with severe saline-alkali soil, plants can hardly survive. In the process of saline-alkali utilization, it can be divided into mild saline-alkali land, moderate saline-alkali land and severe saline-alkali land. [0003] In mild saline-alkali land, the salt content is below 0.3%, the emergence rate is 70%-80%, and the pH is about 7.1-8.5; in severe saline-alkaline land, the salt content exceeds 0.6%, the emergence rate is less than 50%, and the pH is above 9.5; in moderate saline-alkali land The salt content is 0.3-0.6%, the emergence rate is 50%-70%, and the pH is about 8.5-9.5. [0004] The main reasons for the formation of saline-alkali land are: [0005] Climate...

Claims

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Application Information

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IPC IPC(8): A01B79/02C05G3/04C05G3/80
Inventor 刘长生欧阳竹刘泽刘洵陈琛
Owner 刘长生
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