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Method for treating salinized grassland by using yellow corn silage straws

A salinization and straw technology, applied in land preparation methods, chemical instruments and methods, applications, etc., can solve the problems of poor improvement effect and immature comprehensive technology, so as to increase soil nutrients, prevent soil water evaporation, and yellow storage methods. Simple and easy to operate effect

Inactive Publication Date: 2018-09-14
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have achieved certain effects on grasslands with different salinization degrees, but the comprehensive technology is not yet mature enough, and large-scale promotion is still limited by specific grassland conditions and capital costs. less effective

Method used

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  • Method for treating salinized grassland by using yellow corn silage straws
  • Method for treating salinized grassland by using yellow corn silage straws
  • Method for treating salinized grassland by using yellow corn silage straws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A method for treating saline-alkali grassland with yellow stalks, comprising the following steps:

[0073] Step 1: Production of Yellow Storage Straw:

[0074] Harvesting: The production of yellow stalks is completed after harvesting corn ears, and it is completed within one month after harvesting;

[0075] Chopping: Cut the harvested straw raw materials to short length, the length of the straw is 1-2cm;

[0076] Cellar loading: After cutting the raw materials, add water to make the water content reach 40-50%, and fill them into yellow storage cellars in layers;

[0077] Compaction: Each layer is compacted, the thickness of each layer is controlled below 20cm, and the air is removed as much as possible. The filling process can be completed in three days;

[0078] Sealing: Fill the raw materials to 40-50cm higher than the cellar mouth, and seal the cellar when the middle of the cellar top is high and the surrounding area is low. After sealing, cover the top with a laye...

Embodiment 2

[0085] A method for treating saline-alkali grassland with yellow stalks, comprising the following steps:

[0086] Step 1: Production of Yellow Storage Straw:

[0087] Harvesting: The production of yellow stalks is completed after harvesting corn ears, and it is completed within one month after harvesting;

[0088] Chopping: cutting the harvested stalks short, the length of the stalks is 2cm;

[0089] Cellar loading: After cutting the raw materials, add water to make the water content reach 50%, and fill them into yellow storage cellars in layers;

[0090] Compaction: Each layer is compacted, the thickness of each layer is controlled below 20cm, and the air is removed as much as possible. The filling process can be completed in three days;

[0091] Sealing: the raw materials are filled to 50cm above the cellar mouth, and the cellar is sealed when the middle of the cellar top is high and the surrounding area is low. After sealing, cover the top with a layer of plastic film, an...

Embodiment 3

[0098] A method for treating saline-alkali grassland with yellow stalks, comprising the following steps:

[0099] Step 1: Production of Yellow Storage Straw:

[0100] Harvesting: The production of yellow stalks is completed after harvesting corn ears, and it is completed within one month after harvesting;

[0101] Chopping: cutting the harvested stalks short, the length of the stalks is 1cm;

[0102] Cellar loading: add water to the raw materials after cutting to make the water content reach 40%, and fill them into yellow storage cellars in layers;

[0103] Compaction: Each layer is compacted, the thickness of each layer is controlled below 20cm, and the air is removed as much as possible. The filling process can be completed in three days;

[0104] Sealing: the raw material is filled to 40cm above the cellar mouth, and the cellar is sealed when the middle of the cellar top is high and the periphery is low. After sealing, a layer of plastic film is covered on the top, and se...

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Abstract

A method for treating a salinized grassland by using yellow corn silage straws includes the following steps: step (1) preparation of yellow corn silage straws which includes harvesting, preparing theyellow corn silage straws after harvesting corncob and completing the work within one month after harvesting; step (2) chopping the straws before the yellow corn silage with the length of the choppedstraws being 2 cm, scattering uniformly the acidic yellow corn silage straws into the soil of the ploughed salinized grassland with the application amount of 1-2 tons of yellow corn silage straws perhectare, and mixing the soil and the yellow corn silage straws fully by using a rotary tiller; step (3) performing forage reseeding and planting, wherein the saline-tolerant forage is selected depending on the salinization degree, if the salinized grassland soil pH >=8.5, barnyard grass, chloris virgata or stinkgrass flower is planted; if the soil pH <8.5, wild barley or Chinese wildrye is planted.

Description

Technical field: [0001] The invention relates to a method for treating saline-alkali grassland by using yellow storage straw. Background technique: [0002] There are about 4 billion hectares of inland saline-alkali land in the world, of which 450 million hectares are secondary salinized land caused by improper irrigation methods. There are more than 500 million mu of different types of saline-alkali soil distributed in our country, and more than 100 million mu has been reclaimed, which is an important land resource. Saline-alkali soil is mostly distributed in plain areas, with flat terrain and deep soil layers. Generally, there are abundant groundwater sources, and it is a land resource with great potential. Grasslands are mostly located in inland areas. Due to natural and human factors, soil salinization occurs in large areas of grasslands, making grasslands unusable and causing a series of environmental problems. [0003] The reason for the salinization of grassland soi...

Claims

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Application Information

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IPC IPC(8): A01B79/02C09K17/14C09K109/00
CPCA01B79/02C09K17/14C09K2109/00Y02P20/141
Inventor 王明君李海贤李洪影崔国文
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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