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A kind of biological improvement method of saline-alkali land in arid area

A technology for saline-alkali land and arid areas, which is applied in the direction of soil preparation methods, botanical equipment and methods, fertilization methods, etc., and can solve problems such as insufficient regional water resources, and difficulty in making major breakthroughs in the scale and effect of development and utilization of saline-alkali soil.

Inactive Publication Date: 2014-10-15
新疆福禾鑫盛生物科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1960s, Xinjiang has carried out large-scale construction of farmland water conservancy projects, built irrigation and drainage projects, reclaimed tens of millions of acres of saline-alkali wasteland into farmland, and explored ways to improve saline-alkali land, such as high-water pressure salt and vertical well drainage and irrigation. Limited by the shortage of regional water resources, it is difficult to make a major breakthrough in the scale and effect of the development and utilization of saline-alkali soil for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] From 2009 to 2010, experiments and demonstrations were carried out on abandoned and heavily saline-alkali land in the Karamay Agricultural Comprehensive Development Zone:

[0027] a. Leveling the land: choose heavy saline-alkali land that is not suitable for conventional crop cultivation, and carry out plow, harrow and leveling operations before sowing;

[0028] b. The first year of cultivation: 2009

[0029] Mechanical trenching: parallel V-shaped shallow trenches with a trench spacing of 0.6 m and a trench depth of 10 cm, with an opening width of 30 cm;

[0030] Laying drip irrigation belt: After the V-shaped shallow ditch is opened, lay a drip irrigation belt at the bottom of the ditch;

[0031] Sowing: plant Suaeda salsa, and spread the seeds of Suaeda salsa on both sides of the drip irrigation belt in the shallow ditch;

[0032] Irrigation: Irrigate immediately after sowing, and irrigate once every other day during the emergence period. The degree of each irrigat...

Embodiment 2

[0043] From 2011 to 2012, experiments were carried out on the Xinken saline-alkali land in Xiaoguai Township, Karamay:

[0044] a. Leveling the land: choose heavy saline-alkali land that is not suitable for conventional crop cultivation, and carry out plow, harrow and leveling operations before sowing;

[0045] b. The first year of cultivation: 2011

[0046] Mechanical trenching: parallel V-shaped shallow trenches with a trench spacing of 1.0 m and a trench depth of 15 cm, with an opening width of 30 cm;

[0047] Laying drip irrigation belt: After the V-shaped shallow ditch is opened, lay a drip irrigation belt at the bottom of the ditch;

[0048] Sowing: Select wild elm spinach, and spread the wild elm spinach seeds on both sides of the drip irrigation belt in the shallow ditch;

[0049] Irrigation: Irrigate immediately after sowing, and irrigate once every other day during the emergence period. The degree of each irrigation is that the wet peak has just overflowed the edge...

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Abstract

The invention discloses an arid region saline-alkali soil biology improvement method which comprises the following steps: conducting ditching salt avoidance and drip irrigation salt drench to create a low salt moist soil environment that seed germination needs, in the first year, excess salt of farmland plough layer soil is removed through halophyte above ground part cradling, and in the second year, improvement of soil fertility can be realized through salt tolerance leguminous green manure plant. The method is sample and convenient to operate and low in cost, by adopting the halophyte to gather salt and salt tolerance leguminous green manure plant to fertility soil, rapid desalt fertility of saline alkali soil can be realized, saline-alkali soil biology improvement and cyclic utilization mode is built, and the problem that saline-alkali soil common water conservancy improvement is difficult under the background of water resource shortage is avoided.

Description

technical field [0001] The invention discloses a method for improving saline-alkali land, in particular to a method for biological desalination and fertilization of saline-alkali land in arid areas. Background technique [0002] Saline-alkali land is widely distributed in Xinjiang. Affected by the arid climate and closed inland basins, the regional saline-alkali land has the characteristics of large area, many types, heavy salt accumulation, and complex formation. The total area of ​​saline-alkali soil is about 8.476×10 6 hm 2 . 31% of the existing cultivated land is harmed by saline-alkali. Soil secondary salinization is an important factor that threatens the safety of regional cultivated land resources and affects the improvement of cultivated land productivity. At present, my country's cultivated land resources have been relatively fully tapped, and the further improvement of conventional cultivated land productivity is facing a bottleneck. The improvement of saline-al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G25/02A01B79/02A01C21/00
CPCY02A40/22
Inventor 赵振勇田长彦王平张科
Owner 新疆福禾鑫盛生物科技有限公司
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