Saline-alkaline soil improvement method for arid and semi-arid areas

A semi-arid, saline-alkali land technology, applied in land preparation methods, fertilization methods, agricultural machinery and implements, etc., can solve problems such as hindering development, large construction volume, and easy return of salt to the land, and achieves increased grain output, good social benefits and ecological benefits. effect of benefit

Inactive Publication Date: 2019-11-08
青岛九天智慧农业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, engineering improvement involves a large amount of construction and high input costs; agronomic improvement has the risk of incomplete improvement, and the land is prone to return to salt; biological improvement is limited to the laboratory research stage, and the natural environment and laboratory environment are greatly different, with poor applicability and obstacles. Most of the chemical improvement uses chemical agents that neutralize saline-alkali, which is easy to cause environmental pollution; therefore, it is difficult to achieve the purpose of comprehensive improvement of saline-alkali land with a single improvement measure; comprehensive management is an important direction for saline-alkali land improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for improving saline-alkali land in arid and semi-arid areas, the steps are as follows:

[0033] (1) Engineering design;

[0034] Design irrigation, drainage, and precipitation systems to separate drainage and irrigation, lay water supply pipes on the ground, and lay hidden pipes underground to realize single-row single-irrigation for each field.

[0035] (2) Land consolidation;

[0036] Deep plowing and harrowing: use mechanical plowing, and the depth should reach more than 23 cm. After plowing, harrow in time to make the soil finely crushed, eliminate large pieces, and pine up and down.

[0037] After spreading the base fertilizer, mechanical rotary tillage was performed twice, with a depth of about 15cm.

[0038] (3) Planting of saline-alkali-tolerant rice;

[0039] Select rice varieties with a salinity tolerance higher than 4‰; reasonably close planting, with a coefficient of 1.2-1.3 of the local normal density.

[0040] (4) Fertilization measures;

[...

Embodiment 2

[0049] A method for improving saline-alkali land in arid and semi-arid areas, the steps are as follows:

[0050] (1) Engineering design;

[0051] Design irrigation, drainage, and precipitation systems to separate drainage and irrigation, lay water supply pipes on the ground, and lay hidden pipes underground to realize single-row single-irrigation for each field.

[0052] (2) Land consolidation;

[0053] Deep plowing and harrowing: use mechanical plowing, and the depth should reach more than 23 cm. After plowing, harrow in time to make the soil finely crushed, eliminate large pieces, and pine up and down.

[0054] After spreading the base fertilizer, mechanical rotary tillage was performed twice, with a depth of about 15cm.

[0055] (3) Planting of saline-alkali-tolerant rice;

[0056] Select rice varieties with a salinity tolerance higher than 4‰; reasonably close planting, with a coefficient of 1.2-1.3 of the local normal density.

[0057] (4) Fertilization measures;

[...

Embodiment 3

[0066] A method for improving saline-alkali land in arid and semi-arid areas, the steps are as follows:

[0067] (1) Engineering design;

[0068] Design irrigation, drainage, and precipitation systems to separate drainage and irrigation, lay water supply pipes on the ground, and lay hidden pipes underground to realize single-row single-irrigation for each field.

[0069] (2) Land consolidation;

[0070] Deep plowing and harrowing: use mechanical plowing, and the depth should reach more than 23 cm. After plowing, harrow in time to make the soil finely crushed, eliminate large pieces, and pine up and down.

[0071] After spreading the base fertilizer, mechanical rotary tillage was performed twice, with a depth of about 15cm.

[0072] (3) Planting of saline-alkali-tolerant rice;

[0073] Select rice varieties with a salinity tolerance higher than 4‰; reasonably close planting, with a coefficient of 1.2-1.3 of the local normal density.

[0074] (4) Fertilization measures;

[...

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PUM

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Abstract

The invention belongs to the technical field of land improvement and discloses a saline-alkaline soil improvement method for arid and semi-arid areas. The method includes steps of (1) engineering design; (2) land preparation; (3) saline-alkaline tolerant rice planting; (4) fertilization; (5) fallowing and mulching, and the like. The saline-alkaline soil improvement method for the arid and semi-arid areas has advantages that by combination of engineering improvement, agricultural improvement, biological improvement and chemical improvement, rice planting is implemented aiming at characteristicsof the saline-alkaline land in the arid and semi-arid areas on the basis of comprehensive improvement of saline-alkaline soil, the grain yield is increased, and high social benefits and ecological benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of land improvement, in particular to a method for improving saline-alkali land in arid and semi-arid areas. Background technique [0002] Saline-alkali land is a type of land rich in salt, and the main reason for the formation of saline-alkali land is the accumulation of carbonate in the soil; therefore, the alkalinity of the soil is high, and plants can hardly survive on severe saline-alkali land. my country has a large population and lacks arable land resources. The per capita arable land is only 0.11 hectares, which is less than 44% of the world's per capita arable land. The area of ​​saline-alkali land in my country is about 99.13 million hectares; it is mainly concentrated in arid and semi-arid areas. The development of saline-alkali land can not only expand the per capita cultivated land area in my country, increase food production, but also improve the ecological environment, increase the green area,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01B79/02A01G22/22A01C21/00C05G3/00C05G3/02C05G3/04
CPCA01B79/00A01B79/02A01C21/005A01G22/22C05B1/02C05G3/00
Inventor 董桂秀刘林王惠王琦张玲玉
Owner 青岛九天智慧农业集团有限公司
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