Mcthod for rccovering and rebuilding vegetation of Chinese wildrye in soda saline land

A soda saline-alkali land and vegetation restoration technology, which is applied to the restoration and reconstruction of Leymus chinensis vegetation in soda saline-alkali land and the field of forage planting, can solve the problems of seed production and germination that have not been fundamentally solved, low seed germination rate, lack of cultivation techniques and other problems, Achieve significant social and economic benefits, strong operability, and broad application prospects

Inactive Publication Date: 2005-06-15
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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AI Technical Summary

Problems solved by technology

[0004] 1. Low heading rate: about 7.9%
[0005] 2. Low seed setting rate: under natural conditions, the seed setting rate is about 25%, and the highest seed setting rate of natural Leymus chinensis is 41.9%, and the lowest is 7.8%
[0006] 3. Low seed germination rate: about 10%-20%
[0007] 4. Low seed yield: generally about 200 kg / ha
Although some progress has been made after many years of research in various aspects, the problems of seed production and germination have not been fundamentally resolved.
The key problem lies in the lack of innovative cultivation techniques, ignoring the biological characteristics of Leymus chinensis, which mainly reproduces asexually in the natural growth environment, supplemented by sexual reproduction, and the genetic law of Leymus chinensis

Method used

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Embodiment

[0026] Adopt the present invention to utilize wild Leymus chinensis seedlings in 2003 in Chinese Academy of Sciences Da'an Alkaline Land Ecological Experiment Station (Honggangzi Township, Da'an City, Jilin Province, China) soda saline-alkali wasteland to carry out test demonstration according to the following method, prove that the present invention is effective.

[0027] The tillering seedlings of Leymus chinensis rhizomes with a seedling height of 10-15 cm are used as transplanted seedlings. Select a saline-alkali wasteland with a pH of 10.36 (a bare-alkali-spotted plot), see Table 1 for the physical and chemical properties of the soil, and level it with a disc harrow. Imitate paddy fields to raise ridges and level them with water. After settling for 1 day, plant Leymus chinensis seedlings. The cultivation density hole spacing is 10cm×30cm, and 20cm×30cm. The number of cutting seedlings per hole is 1-5 in five ways. Keep a 1-3cm water layer or keep the soil moist for 1-3...

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Abstract

A method for restoring and recultivating the vegetation of Aneurolepidium Chinese on the soda-type saline-alkaline land includes choosing the seedlings of Aneurolepidium chinese, plough by 5-15 cm in depth, flood irrigation, leveling, making ridges or beds, transplanting by a certain density, and irrigation.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and relates to the planting technology of forage grass, in particular to a method for restoring and rebuilding Leymus chinensis vegetation in soda saline-alkali land. Background technique [0002] Leymus chinensis belongs to rhizome-type perennial grasses and is the king of grasses. It is widely distributed in the eastern part of the Eurasian steppe region, and is mainly distributed in the northeast and eastern Inner Mongolia in China. Leymus chinensis is the dominant species of grassland in this area of ​​China. It has high nutritional value, wide adaptability, strong stress resistance, and ecological persistence of cold tolerance, drought tolerance, and salt-alkali tolerance. It is an excellent forage grass for desertification and alkali control. Leymus chinensis is also a dominant industry in China. The market potential of Leymus chinensis hay at home and abroad is huge, and the see...

Claims

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Application Information

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IPC IPC(8): A01G7/00
Inventor 梁正伟王志春杨福陈渊马红媛
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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