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Method for repairing bare spots of coastal saline-alkali soil

A saline-alkali land repair technology, which is applied in the fields of soil preparation methods, botany equipment and methods, horticulture, etc., can solve the problems of lack of saline-alkali land planting methods, labor and material resources, and shorten germination time, increase germination rate, and plant growth. good effect

Pending Publication Date: 2020-05-19
BINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, people mostly use artificial transplanting of seedlings of saline-alkali-tolerant plants, which consumes manpower and material resources. At present, there is still a lack of an effective and side-effect-free saline-alkali land establishment method.

Method used

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  • Method for repairing bare spots of coastal saline-alkali soil
  • Method for repairing bare spots of coastal saline-alkali soil
  • Method for repairing bare spots of coastal saline-alkali soil

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Collect bare surface soil, reed habitat and Tamarix habitat natural algae crusts from the coastal saline-alkali land, all with a thickness of 0.5cm, bring them back to the laboratory, spread them flat in a 9cm-diameter petri dish, and put Suaeda salsa and reed seeds Inoculate into petri dish, each petri dish two kinds of seeds respectively 30, cover plastic wrap on petri dish, and puncture 6 ventilation small holes on plastic wrap.

[0033] The specific setting parameters of culture conditions are as follows: culture temperature 25°C / 20°C, light intensity 60 μmol m -2 ·s -1 , humidity 60% / 60%, light / dark time 12h / 12h. Add the same amount of water to the above Petri dish every day, both 1.5L·m -2 , applied continuously for 20 days.

[0034] Among them, the germination of Suaeda salsa and reed seeds on the bare surface soil and the biological crust under the dominant plants in the coastal saline-alkali land are as follows: image 3 The results showed that the germinat...

Embodiment 2

[0036] Since mid-May 2019, it has been carried out in the coastal saline-alkali land near Binzhou Port, Binzhou City. The groundwater level in this area is 30-50cm, and the pH value of the 0-5cm topsoil layer is 8.46±0.02. The dominant plants are tamarisk, reed, Suaeda salsa and Suaeda salsa, there are many exposed patches of different sizes.

[0037] Specific implementation steps:

[0038] Collect naturally developed algal crusts from reed and tamarisk habitats in coastal saline-alkali land, with a thickness of 0.5 cm, and bring them back to the laboratory in a portable ice box; remove impurities on the crusts, dry them naturally, grind them through a 60-mesh sieve, and separate the algal crusts with Mix the dry weight of bare spot sandy soil in coastal saline-alkali land at a ratio of 1:1 to obtain a mixture of crust powder and sandy soil for later use;

[0039] Select a bare spot with an area of ​​about 8.0m×9.0m, in the center of the bare spot, with an area of ​​2.0m×2.0m, ...

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Abstract

The invention provides a method for repairing bare spots of coastal saline-alkali soil and relates to the technical field of soil improvement. The method mainly comprises the steps of transplanting biological soil crust to the bare spots and utilizing the biological soil crust naturally developing under the dominant plants of the saline-alkali soil to form a microenvironment suitable for seed germination, thereby improving the germination rate of suaeda salsa and reed seeds, shortening the seed germination time, and promoting the rapid planting of the saline-alkali soil plants. By utilizing the method, the suaeda salsa seeds begin to germinate and emerge after 3 days of sowing, the reed seeds begin to germinate and emerge after 6 days of sowing, and the emergence rate of the suaeda salsa seeds is 33.3 + / -1.2% and the emergence rate of the reed seeds is 86.7 + / -1.9% after 30 days of sowing. After the test, the plants grow well after an experimental group PVC pipe device is moved away for 30d.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a method for repairing bare spots on coastal saline-alkali land. Background technique [0002] The improvement, restoration and efficient utilization of saline-alkali land is one of the hotspots of current research. The problem of soil salinization can be solved directly by irrigation and drainage but for many areas, water resources are scarce, so this method cannot be widely used. In recent years, the cultivation of saline-alkali-tolerant plants has achieved good ecological effects. However, people mostly adopt artificial transplanting of seedlings of saline-alkali-tolerant plants, which consumes manpower and material resources. At present, there is still a lack of an effective and side-effect-free saline-alkali land establishment method. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a method for r...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G22/00
CPCA01B79/02A01G22/00
Inventor 冯璐刘京涛
Owner BINZHOU UNIV
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