Method for vegetative propagation seedling cultivation of Miscamthusszechuanesis Keng rhizomes in arid region

A technique of vegetative reproduction and acanthus root, applied in the restoration and reconstruction of vegetation in degraded shrub and grass ecosystems in arid areas, the reproduction of acanthus populations in arid areas, and renewal promotion, it can solve the problems of difficulty in sexual reproduction and low survival rate of asexually propagated seedlings , to achieve the effect of improving the reproductive ability, improving the renewal ability, and the method is simple

Inactive Publication Date: 2014-06-25
CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of difficulty in sexual reproduction and low survival rate of asexually propagated seedlings in arid regions, the present invention provides a method for asexua

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Seedling soil and seedbed preparation: choose the 0~20cm soil under the shrub forest, with a total organic carbon content of 17.22 g kg -1 , pH5.45, bulk density 1.01g cm -3 , total nitrogen 1.64g·kg -1 , carbon to nitrogen ratio 10.6, available phosphorus 9.19mg·kg -1 , Available Potassium 78.25mg·kg -1 , After mixing the soil evenly, build an open-air seedbed with an area of ​​1.5m*1.5m and a soil layer thickness of 35cm in the field, and make 3 parallel ones.

[0023] (2) Acquisition and preservation of rhizomes: In the spring of 2012 (early April), before the rhizomes of Chuanmang had not germinated, the rhizomes were excavated in the concentrated distribution area of ​​Chuanmang under natural conditions, and immediately buried at room temperature Store in wet sand.

[0024] (3) Planting rhizomes: select 1-year-old rhizomes with a diameter of 0.3-0.5 cm and strong growth, cut them off manually, and transplant them; first, cut each bud primordia at 4-5 cm on ...

Embodiment 2

[0027] (1) Seedling soil and seedbed preparation: choose 0~20cm soil under the shrub forest, with a total organic carbon content of 16.3g kg-1, pH 5, and a bulk density of 1.1g cm -3 , total nitrogen 2.3g·kg -1 , carbon-to-nitrogen ratio 7.1, available phosphorus 8.2mg·kg -1 , available potassium 91mg·kg -1 , After mixing the soil evenly, construct open-air seedbeds with an area of ​​1.5m*1.5m and a soil thickness of 30cm in the field, 3 in parallel.

[0028] (2) Acquisition and preservation of rhizomes: In the spring of 2012 (early April), before the rhizomes of Chuanmang had not germinated, the rhizomes were excavated in the concentrated distribution area of ​​Chuanmang under natural conditions, and immediately buried at room temperature Store in wet sand.

[0029] (3) Planting rhizomes: select 1-year-old rhizomes with a diameter of 0.4-0.7 cm and strong growth, cut them off manually, and transplant them; ~10cm rhizome segments are then planted horizontally in the seedbe...

Embodiment 3

[0032] (1) Seedling soil and seedbed preparation: choose 0~20cm soil under the shrub forest, with a total organic carbon content of 18.5g kg-1, pH6, and a bulk density of 1.0g cm -3 , total nitrogen 1.1g·kg -1, carbon-to-nitrogen ratio 16.7, available phosphorus 9.7mg·kg -1 , available potassium 70 mg·kg -1 , After mixing the soil evenly, build an open-air seedbed with an area of ​​1.5m*1.5m and a soil layer thickness of 25cm in the field, 3 in parallel.

[0033] (2) Acquisition and preservation of rhizomes: In the spring of 2012 (early April), before the rhizomes of Chuanmang had not germinated, the rhizomes were excavated in the concentrated distribution area of ​​Chuanmang under natural conditions, and immediately buried at room temperature Store in wet sand.

[0034] (3) Planting rhizomes: Select 1-year-old rhizomes with a diameter of 0.3-0.7 cm and grow robustly, cut them off manually, and transplant them; first, cut each bud primordia at 4-5 cm on both sides to obtain...

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Abstract

The invention provides a method for vegetative propagation seedling cultivation of Miscamthusszechuanesis Keng rhizomes in an arid region. The method aims at satisfying the actual requirements for pioneer plants of degraded ecosystem vegetation recovery and reestablishment in the arid region. The method comprises the steps that fertile soil in a soil layer of 0-20 cm under shrubbery is collected; before the Miscamthusszechuanesis Keng rhizomes bud in spring, the healthy one-year rhizomes are selected, the portions, 4-5 cm away from each bud primordium, at the two sides are cut, and small sections of 8-10 cm of the rhizomes are obtained and horizontally planted to a seedbed at the intervals of 15 cm, wherein the planting depth ranges from 8 cm to 10 cm; in the process of seedling cultivation, the volume water content of the soil of the seedbed is kept 7%-18% and after 6 to 8 leaves appear, the rhizomes can be transplanted to the arid region from the seedbed. According to the method, a large number of viable Miscamthusszechuanesis Keng seedlings can be obtained, a pioneer species and the practical technology are provided for degraded ecosystem bare land and wasteland vegetation recovery in the arid region, the bare land or wasteland vegetation coverage is improved, and finally, the purposes of arid river valley shrub and herbaceous plant vegetation recovery and reestablishment are achieved.

Description

technical field [0001] The invention relates to vegetation restoration and reconstruction technology of degraded shrub-grass ecosystem in arid areas and shrub-grass seedling breeding technology, in particular to a technology and method for the reproduction and renewal of awn populations in arid areas, and belongs to the field of ecological technology. Background technique [0002] Arid areas refer to areas with an arid climate, where the annual rainfall is below 500mm. Among them, 0.03<dryness<0.20 is an arid area, and aridity>0.20 is a semi-arid area. Generally, the arid area referred to in the field refers to arid and semi-arid areas. [0003] More than one-third of the earth's land area belongs to arid and semi-arid regions. my country's arid and semi-arid areas are vast, accounting for about one-half of the total land area. The main characteristics of these arid areas are: low precipitation, uneven temporal and spatial distribution, great variability, evaporat...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 李芳兰孙素静包维楷
Owner CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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