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Identification method of hardened salinity soil seed bank seedlings

A technology of soil seed bank and identification method, which is applied in the field of identification of seedlings in hardened and salinized soil seed bank, can solve the problems of affecting seedling germination, seeds unable to germinate, etc., and achieve the effect of accurate identification method

Inactive Publication Date: 2015-05-13
INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In compacted salinized soil, this method is directly used. On the one hand, due to soil compaction, the germination of seedlings is affected; on the other hand, due to the high osmotic potential of the soil solution brought about by the high salinity of the soil, some seeds cannot germinate at all.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] The method for identifying seed bank seedlings in compacted salinized soil comprises the following steps:

[0016] (1) Soaking and dispersion of compacted salinized soil:

[0017] Select compacted salinized soil for seedling identification, weigh it on a balance, pour it into a plastic box, add a certain amount of tap water (the ratio of water to soil is between 10:1 and 1:1), and stir it with a glass rod for 3- After 5 minutes, add 50-100ml of 0.5 N sodium hexametaphosphate, stir with a glass rod for 1 minute, and let it stand for 3-4 hours before use;

[0018] (2) Large water rinsing of compacted salinized soil:

[0019] Select 4 groups of sieves with different apertures (aperture 2mm, 1mm, 0.25mm, 0.075mm), place them from top to bottom according to the order of apertures from large to small, pour the soaking liquid into the sieves, rinse them repeatedly with tap water, and pick out the large ones Gravel until there are no big soil bumps, and finally collect the wa...

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Abstract

The invention discloses an identification method of hardened salinity soil seed bank seedlings. The identification method comprises the following steps: (1) soaking and dispersion of hardened salinity soil; (2) flood rinsing of the hardened salinity soil; (3) seedling nutrition planting method in the hardened salinity soil. The identification method has the benefits that the identification method of hardened salinity soil seed bank seedlings provided by the invention solves the problems that soil hardening seriously impacts the germination of seedlings and that seeds cannot germinate caused by the facts that the soil is high in salinity and the soil solution is high in osmotic potential in the prior art, and provides a more accurate identification method for the research of hardened salinity soil seed banks.

Description

technical field [0001] The invention relates to the field of identification of plant seed bank seedlings, in particular to a method for identifying seed bank seedlings in hardened and salinized soil. Background technique [0002] The soil seed bank refers to the sum of all viable seeds in the soil per unit area and the leaf litter layer on the soil surface. The soil seed bank is the basis of population, survival, reproduction and dispersal, and it plays an important role in the occurrence and succession, renewal and restoration of vegetation. [0003] At present, the methods for species identification in soil seed bank mainly include seed germination method, screen sorting method, and floating concentration method, among which the seed germination method is the most commonly used. The floating concentration method realizes the separation of seeds by using the difference in seed density, which is suitable for the identification of the seed bank of a single species; the mesh ...

Claims

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Application Information

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IPC IPC(8): G01N33/483A01C1/02
Inventor 郭全恩南丽丽曹诗瑜魏永鹏向华于闯李峥
Owner INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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