Method for thoroughly improving saline soil by combination of farming and grazing

A kind of saline soil, thorough technology, applied in the direction of soil preparation method, botanical equipment and method, application, etc., can solve the problems of shortage of organic fertilizer resources, high input cost, unsustainable improvement, etc., and achieve remarkable social and ecological benefits, Promote the effect of strong adaptability and improved physical and chemical properties

Inactive Publication Date: 2012-08-15
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method that can overcome the problems of high input cost, unsustainable improvement, and shortage of organic fertilizer resources in the existing saline soil improvement technol

Method used

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  • Method for thoroughly improving saline soil by combination of farming and grazing
  • Method for thoroughly improving saline soil by combination of farming and grazing
  • Method for thoroughly improving saline soil by combination of farming and grazing

Examples

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Embodiment 1

[0017] In this example, the combination of farming and animal husbandry to thoroughly improve the saline-alkali land is located in the soda saline soil area of ​​Yongle Town, Zhaozhou County, Songnen Plain. From 1995 to 2000, a high-efficiency business model was formed in which corn was planted on arable land, corn grains and green straw were used to raise cattle, and cow dung was used to return to the field to improve saline-alkali land. The specific operation links are as follows:

[0018] (1) Establish a pasture that breeds 48-50 cows per year. The farm adopts the breeding mode of purchasing 150-250 kg young cattle and breeding them to 450-500 kg for slaughter after 7-12 months. It can produce 1,000 cubic meters of cow dung per year, ensuring the organic fertilizer resources needed to improve saline soil;

[0019] (2) In the first 3 years, 20cm of cow dung shall be spread on the alkali spot (meadow alkaline soil) every year, and the remaining alkalized meadow soil shall be...

Embodiment 2

[0022] In this example, on the basis of Example 1, a distillery was established in 2001-2003, and the corn planting area and the scale of the cattle farm were expanded, and the corn planted in the cultivated land was used to produce wine, and the distiller's grains, distiller's grains and green corn stalks were used for wine production. Raising cattle and returning cow dung to fields is an efficient business model for improving saline-alkali land. The specific operation links are as follows:

[0023] (1) Establish a pasture that breeds 380-420 cows per year. The farm adopts the breeding mode of purchasing 150-250 kg young cattle and breeding them to 450-500 kg for slaughter after 7-12 months. It can produce 8,000 cubic meters of cow dung per year, ensuring the organic fertilizer resources needed to improve saline soil;

[0024] (2) Alkali-spotted plots (meadow alkaline soil) are paved with 20cm of cow dung every year for 3 consecutive years, and the rest of the plots (alkalin...

Embodiment 3

[0028] In this example, on the basis of Example 2 from 2004 to 2010, the planting area of ​​corn, the scale of the cattle farm and the winery were increased, and the corn planted in arable land was used to produce wine, and distiller's grains, distiller's grains, and corn green straw were used to raise cattle , an efficient business model in which cow dung is used to improve saline-alkali land. The specific operation links are as follows:

[0029] (1) 1,000 mu of arable land was reclaimed on the saline-alkali land to plant corn, and the main varieties suitable for the local climate were planted. Corn grains were harvested for wine making, and the grains and green straw were used as cattle feed; corn grains were also sold as commercial grains;

[0030] (2) Established a distillery with an annual output of 600 tons, deep processing of corn, and production of distiller's grains for raising cattle;

[0031] (3) Establish a pasture that breeds 950-1100 cattle per year. The farm adop...

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Abstract

The invention provides a method for thoroughly improving saline soil by combination of farming and grazing, which aims at overcoming the defects of too high input cost, difficulty in sustained improvement, shortage of organic fertilizer resources and the like of an existing saline soil improvement technology. The invention provides a method for thoroughly improving saline soil by combination of farming and grazing, which integrates wine making from corn, cattle raising by wine lees and straw and soil improvement by cattle dung into a whole. The technical method for improving saline soil by combination of farming and grazing comprises four key links, namely planting of corn, wine making from corn, cattle raising by wine lees and the corn and soil improvement by cattle dung. According to the method provided by the invention, a sustainable development mode of ensuring soil improvement input by cattle-raising benefits, ensuring organic fertilizer resources by cattle-raising scale, ensuring sustainable supply of organic fertilizer by cattle-raising normal state and reducing cattle-raising cost by improving productivity of land is established. The physicochemical properties of the soil can be obviously improved, and the productivity of land can be greatly improved. The method provided by the invention has the advantages of low cost, sustainable and gradual improvement of the saline soil, strong popularization applicability, significant economic, social and ecological benefits and the like.

Description

technical field [0001] The invention relates to a method for soil improvement, in particular to a technology for improving saline soil by combining farming and animal husbandry. Background technique [0002] Soil salinization is a worldwide resource and ecological problem, and it is also an unsolvable land degradation problem in the world. At present, saline soil is widely distributed in the world and covers a large area. Except for Antarctica, which has yet to be investigated and studied, the coastal areas and arid and semi-arid areas of the other five continents and most of their major islands involve more than 100 countries and regions. The distribution of different types of saline soil. Salt stress affects almost all important life processes of plants. The total area of ​​saline soil in China is about 2×10 8 hm 2 , is one of the countries most seriously affected by desertification in the world today, and is mainly distributed in the inland areas of North China, North...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G1/00A01K67/02
CPCY02A40/10Y02A40/70
Inventor 周连仁马献发李大伟
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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