Method for preparing desert plant seedling raising substrate

A technology for raising seedling substrates and desert plants is applied in the field of raising seedlings of desert plants to achieve the effects of promoting the growth of plant seedlings, improving water conditions and reducing ineffective losses

Active Publication Date: 2015-02-25
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to existing reports, desulfurization magnesium slag has only been used in artificial afforestation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of the desert plant seedling substrate of the present invention is tested in the Turpan Desert Botanical Garden of the Chinese Academy of Sciences, with an altitude of -105--76 meters, an average annual rainfall of 16.4 mm, and an average annual humidity of 41%, which belongs to a typical inland arid desert. Climate, the zonal soil is gray-brown desert soil, and the pH of the soil is between ph8.6-9.1;

[0020] The specific operation is carried out according to the following steps:

[0021] Select 76% of sandy soil with water permeability and moisture retention by weight percentage;

[0022] Determination of the salinity of the selected sandy soil: the sandy soil was sampled, dried in the shade and sieved, and the Mg was determined by inductively coupled plasma emission spectrometry (ICP-AES). 2+ The content of SO was determined by ion spectrometry 4 2- The content of MgSO in sandy soil is obtained 4 The content of MgSO contained in the desulf...

Embodiment 2

[0027] Experimental area is identical with embodiment 1;

[0028] Select 84% of sandy soil with water permeability and moisture retention by weight percentage;

[0029] Determination of the salinity of the selected sandy soil: the sandy soil was sampled, dried in the shade and sieved, and c was used to measure Mg by inductively coupled plasma emission spectrometry (ICP-AES). 2+ The content of SO was determined by ion spectrometry 4 2- The content of MgSO in sandy soil is obtained 4 The content of MgSO contained in the desulfurization magnesium slag 4 ·7H 2 The amount of O accounts for 60% of the total, according to the measured MgSO in the sand 4 The molar amount of the required desulfurization magnesium slag can be calculated. In the entire seedling substrate, MgSO 4 The required content is 0.5%;

[0030] Add 15% of decomposed cow dung by the conventional method to the sand after disinfection, stir and mix evenly, then add 0.5% superabsorbent water-retaining agent of p...

Embodiment 3

[0034] Experimental area is identical with embodiment 1;

[0035] Select 80% of sandy soil with water permeability and moisture retention by weight percentage;

[0036] Determination of the salinity of the selected sandy soil: the sandy soil was sampled, dried in the shade and sieved, and the Mg was determined by inductively coupled plasma emission spectrometry (ICP-AES). 2+ The content of SO was determined by ion spectrometry 4 2- The content of MgSO in sandy soil is obtained 4 The content of MgSO contained in the desulfurization magnesium slag 4 ·7H 2 The amount of O accounts for 60% of the total, according to the measured MgSO in the sand 4 The molar amount of the required desulfurization magnesium slag can be calculated. In the entire seedling substrate, MgSO 4 The required content is 1.0%;

[0037]Add 18% of decomposed cow dung by the conventional method to the sand after disinfection, stir and mix evenly, then add 1.0% superabsorbent water-retaining agent of polya...

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PUM

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Abstract

The invention relates to a method for preparing a desert plant seedling raising substrate. According to the method, the seedling raising substrate is prepared from sandy soil, magnesium sulfate, thoroughly-decomposed cow dung and a water retention agent and is prepared through the steps of selecting the sandy soil with water permeability and moisture retention, carrying out salt content determination on the selected sandy soil so as to obtain the content of magnesium sulfate in the sandy soil, determining the added amount of desulfurization magnesium slag according to the content of magnesium sulfate in the sandy soil, adding the thoroughly-decomposed cow dung into the sandy soil, uniformly stirring and mixing, adding the high-hygroscopicity water retention agent, and uniformly stirring and mixing, thereby obtaining the desert plant seedling raising substrate. The method has the advantages that the moisture absorption and water retention properties of desulfurization magnesium slag are utilized, so that the moisture content of the seedling raising substrate is increased, the seedling emergence rate and survival rate of seedlings are increased, the seedling emergence cycle is shortened, and the quality of the seedlings is improved; through carrying out seedling raising by using the seedling raising substrate prepared by the method provided by the invention, the seedling emergence rate can reach 95%, the survival rate can reach 90%, the seedling raising is not subjected to seasonal restrictions, and the seedlings can be supplied all the year, so that the method has an important practical significance in the large-scale production of desert plant seedlings and the restoration and reconstruction of vegetation in desert vegetation damaged areas.

Description

technical field [0001] The invention belongs to the technical field of desert plant seedling cultivation, and in particular relates to a preparation method of a desert plant seedling breeding and breeding medium. Background technique [0002] In the desert area of ​​northwest my country, the ecological environment is very fragile. Although the desert vegetation has few species and low coverage, it constitutes the main body of the desert ecosystem and plays an important role in resisting natural disasters such as wind and sand and stabilizing the environment in arid areas. . However, the impact of human activities on the natural environment has become more and more severe. Large areas of desert ecosystems have been destroyed, which has damaged or degraded the already fragile desert ecosystems, causing a series of ecological and environmental problems. In order to improve the natural environmental conditions, reduce natural disasters, and protect the safety of human survival, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G9/10C05G3/04C05G3/80
Inventor 王雷涛尹林克严成
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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