Method for rapidly constructing artificial grassland of leymus chinensis in saline-alkali degraded meadow,

A saline-alkali and Leymus chinensis technology, applied in land preparation methods, seed and rhizome treatment, agricultural machinery and implements, etc., can solve the problem of salinity-alkali spot damage in Songnen meadow degradation, and achieve curb grassland degradation and salinization, The effect of strong operability and good economic benefits

Active Publication Date: 2018-07-10
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the hazards of degraded saline-alkali spot in the existing Songnen meadow, and provide a method for quickly building and planting Leymus chinensis artificial grassland in saline-alkali degraded meadows by artificially planting high-quality forage grass, taking into account ecological management and grassland economy development

Method used

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  • Method for rapidly constructing artificial grassland of leymus chinensis in saline-alkali degraded meadow,
  • Method for rapidly constructing artificial grassland of leymus chinensis in saline-alkali degraded meadow,

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specific Embodiment approach 1

[0016] Specific implementation mode one: the method for quickly building and planting Leymus chinensis artificial grassland in saline-alkali degraded meadow in this embodiment is implemented according to the following steps:

[0017] 1. Determine the area of ​​degraded saline-alkali spots, when the area of ​​saline-alkali spots is less than 100m 2 , stripping the surface layer of saline-alkali spots, backfilling the surface layer with wind-blown sandy soil, and leveling it; when the area of ​​saline-alkali spots is greater than 100m 2 , first prepare the land, and then evenly mix the improver into the surface 10cm soil layer, and use natural rainfall or artificial spraying to flush the salt and drain the alkali 3 to 5 times to obtain the improved land;

[0018] 2. Shallow plowing on the improved land, ridges of 5-8cm, pre-packed Leymus chinensis seeds into woven bags and soaked in cold water at 10-15°C for 20-25 hours, took out and drained, and repeated cold water soaking -Dr...

specific Embodiment approach 2

[0022] Specific embodiment two: the difference between this embodiment and specific embodiment one is that in step one, when the saline-alkali spot area is less than 100m 2 , take the surface 10cm saline-alkali spots to peel off, and use aeolian sandy soil to backfill the surface and level it. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass ratio of phosphogypsum and organic fertilizer in the modifier in Step 1 is 2-3:1-2. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a method for rapidly constructing artificial grassland of leymus chinensis in saline-alkali degraded meadow, and aims at solving the harm of degeneration saline-alkaline spotsof existing Songnen meadow. The method for constructing the artificial grassland of leymus chinensis comprises the following steps: 1, determining the area of a degraded saline-alkali spot, adoptingsurface-layer saline-alkali spot stripping and carrying out surface-layer backfilling with aeolian sandy soil when the area of the saline-alkali spot is less than 100m<2>, and mixing a modifier into asoil layer for removing alkali for a plurality of times when the area of saline-alkali spot is greater than 100m<2>; 2, repeating a cold water immersion-draining process to break dormancy of seeds, and after air drying treatment, sowing the leymus chinensis seeds into a modified land block; and 3, carrying out routinefield management at a seedling stage of the leymus chinensis, applying a nitrogen fertilizer, and finishing the construction of the artificial grassland of leymus chinensis. Through the method for rapidly constructing artificial grassland in saline-alkali degraded meadow, the artificial grassland can be quickly constructed in the saline-alkali degraded meadow, the cover degree of vegetation is increased, the saline-alkali spot area is reduced, and the land utilization rate and the production function are improved.

Description

technical field [0001] The invention relates to a method for quickly establishing and planting Leymus chinensis artificial grassland in saline-alkali degraded meadows. Background technique [0002] As a famous natural grassland in northern my country, the western meadow of Songnen Plain plays an important role in maintaining ecosystem service functions and promoting the development of local animal husbandry. In recent years, due to the increasing soil salinization and unreasonable use of grassland resources in the region, more than 60% of the grassland in the region has been degraded to varying degrees, the area of ​​saline-alkali spots has expanded year by year, and the ecological environment has become increasingly harsh. Restoring or rebuilding high-quality grassland is an urgent need to protect and improve the regional ecological environment and promote the economic development of local animal husbandry. Leymus chinensis is the top high-quality forage grass in Songnen m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01C1/00
CPCA01B79/02A01C1/00
Inventor 黄立华
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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