Medium/heavy soda saline-alkaline land Chinese wild rye direct seeding method

A technology of soda saline-alkali land and Leymus chinensis, applied in the fields of soil preparation methods, chemical instruments and methods, botanical equipment and methods, etc., can solve problems such as phosphogypsum pollution

Inactive Publication Date: 2019-04-12
JILIN ACAD OF AGRI SCI
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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a method for direct seeding of Leymus chinensis in medium-to-severe soda saline-alkali la

Method used

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  • Medium/heavy soda saline-alkaline land Chinese wild rye direct seeding method
  • Medium/heavy soda saline-alkaline land Chinese wild rye direct seeding method
  • Medium/heavy soda saline-alkaline land Chinese wild rye direct seeding method

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Embodiment

[0028] A method for live-seeding Leymus chinensis in medium-to-severe soda saline-alkali land, comprising the following steps:

[0029] 1) Land consolidation: Rotate the land for 10cm after the spring thaw;

[0030] 2) Soil improvement: According to the pH value of the soil, apply 1000kg-2000kg of phosphogypsum per hectare;

[0031] 3) Sowing: using the drill method to sow, using a seeder to evenly sow Leymus chinensis seeds into the soil after sowing, and then cover with soil and suppress after sowing. The sowing width is 40-80cm, and the sowing width is 30-100cm. The drill distance is 10-25cm. Sow the seeds into the sorted soil, cover the soil with 0.5cm-2cm, and press after covering the soil. According to the germination rate and purity of Leymus chinensis, the sowing rate per hectare is 15kg-30kg. Leymus chinensis seeds are pre-treated. Treatment, specifically selecting plump seeds to remove impurities and then treating the seeds at a low temperature of -20°C;

[0032] 4...

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Abstract

The invention provides a medium/heavy soda saline-alkaline land Chinese wild rye direct seeding method and relates to the technical field of saline-alkaline land treatment and planting. The method comprises the following steps: preparing a land, namely carrying out land rotary tillage for 10cm after unfreezing in spring; improving soil, namely according to the pH value of the soil, applying 1000-2000kg of ardealite per hectare; sowing seeds, namely uniformly sowing Chinese wild rye seeds into the prepared soil by using a seeding machine by using a drilling method, covering with shallow soil, and compacting; covering with straw, namely covering the surface of the soil with straw after seed sowing, covering with a low-density net, and compacting the edges of the net with soil so as to prevent that the straw is blown off by wind or flashed away by water; carrying out irrigation, namely irrigating the soil to accelerate the seedling growth process. An agricultural waste, namely the straw,is adopted to reduce soil moisture evaluation of a saline-alkaline land, the industrial waste, namely the ardealite, is adopted as a soil improver, a saline-alkaline deteriorated grassland can be rapidly recovered as a top-level ecological community of the Songnen plain, the purpose of treating medium/heavy saline-alkaline deteriorated grasslands is achieved, and ecological environments of meadowsteppes can be recovered.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land treatment and planting, in particular to a method for direct-seeding Leymus chinensis in medium-to-severe soda saline-alkali land. Background technique [0002] Land salinization is a worldwide problem faced by human beings. There are 950 million hectares of saline-alkali land in the world, covering more than 80 countries and regions. my country has about 36.3 million hectares of saline-alkali land, about 75% of which have not been effectively controlled and rationally developed and utilized. The Songnen Plain is one of the world's three largest concentrated distribution areas of soda saline-alkali land, covering an area of ​​2.39 million hectares. Relevant countries and international organizations in the world are carrying out saline-alkali land control, development and utilization work. Overseas research on saline-alkali land began in the early 20th century, and preliminary researc...

Claims

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Application Information

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IPC IPC(8): A01G22/00A01G13/02A01B79/02C09K17/06C09K101/00C09K109/00
CPCA01B79/02A01G13/0262A01G22/00C09K17/06C09K2101/00C09K2109/00Y02P60/20
Inventor 于洪柱王志锋齐宝林高阳王洪君刘卓刘世超王多伽于丽张鑫
Owner JILIN ACAD OF AGRI SCI
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