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Drip irrigation under film method for underground salt water cotton field

A technology of drip irrigation and cotton field under film, applied in the field of cotton field irrigation, can solve the problems of low guarantee rate of fresh water irrigation in cotton field, restricting the high and stable yield of cotton, etc., and achieve the effect of improving the guarantee rate of irrigation and improving the guarantee rate

Inactive Publication Date: 2011-04-20
XINJIANG AGRI UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The Tarim Basin is one of the main cotton producing areas in my country, and the guarantee rate of fresh water irrigation for cotton fields is low. In the downstream areas of large rivers (such as Kongque River, Tarim River, etc.), fresh water can only guarantee 5-6 times of drip irrigation during the cotton growth period, which is lower than The normal drip irrigation times are 9-11 times, and the cotton yield is only 200-300kg / mu, which seriously restricts the high and stable yield of cotton

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0010] In this embodiment, a 7-10g / L underground salt water cotton field drip irrigation test area was established in Nanhaizi Village, Tarim Township, Yuli County, Xinjiang Uygur Autonomous Region. The zone area is 200mu. The test period is April-September 2009 and April-September 2010.

[0011] The test area is the main cotton producing area in Xinjiang, located in the lower reaches of the Kongque River and the Tarim River. The guarantee rate of fresh water irrigation in cotton fields is low. Fresh water can only guarantee 3-4 times of drip irrigation during the cotton growth period, which is 9-11 times lower than the normal drip irrigation. Only 200kg / mu. However, 7-10g / L groundwater (salt water) is relatively abundant in the test area and its surrounding areas.

[0012] Beginning in 2009, one time of canal water was used for spring irrigation (salinity 1-2g / L); one time of canal water was used for drip irrigation at the seedling stage (salinity 1-2g / L); the irrigation wa...

Embodiment 2

[0016] In this embodiment, a 7-10g / L underground saline water and a 3-7g / L medium salinity underground water wheel irrigation cotton field drip irrigation test area was established in Tarim Village, Tarim Township, Yuli County, Xinjiang Uygur Autonomous Region. ~86°16′25.9″, latitude 41°16′40.7″~41°17′15.6″, the area of ​​the test area is 2000mu. The test period is from April to September 2010.

[0017] The test area is the main cotton producing area in Xinjiang, located in the lower reaches of the Kongque River and the Tarim River. The guarantee rate of fresh water irrigation in cotton fields is low. Fresh water can only guarantee 4-5 times of drip irrigation during the cotton growth period, which is 9-11 times lower than the normal drip irrigation. Only 280kg / mu. However, 7-10g / L groundwater (salt water) is relatively abundant in the test area and its surrounding areas.

[0018] In April 2010, use canal water (fresh water, salinity 0.9-1.2g / L) for spring irrigation to pres...

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Abstract

The invention discloses a drip irrigation under film method for an underground salt water cotton field. An irrigation system comprises that: salt is pressed by fresh water in spring; and fresh or saltish flowing water is used for drip irrigation in a seedling stage, and 7 to 10g / L underground salt water is used for irrigating for 7 to 8 times in other periods. By the drip irrigation under film technology for 7 to 10g / L underground salt water cotton field, the irrigation guarantee rate in the cotton field of an irrigated area in severe shortage of fresh water resources can be greatly improved, and the cotton yield is over 380kg per mu; by the drip irrigation under film technology for 7 to 10g / L of underground salt water cotton field, limited fresh water and saltish water resources can be allocated to other relatively low-salt resistance crops, such as wheat, corn and the like. Therefore, the guarantee rate for agricultural irrigation in arid regions is integrally improved.

Description

technical field [0001] The invention relates to the technical field of cotton field irrigation, in particular to an underground saltwater cotton field under-film drip irrigation method. Background technique [0002] The Tarim Basin is one of the main cotton producing areas in my country, and the guarantee rate of fresh water irrigation for cotton fields is low. In the downstream areas of large rivers (such as Kongque River, Tarim River, etc.), fresh water can only guarantee 5-6 times of drip irrigation during the cotton growth period, which is lower than The normal drip irrigation times are 9-11 times, and the cotton yield is only 200-300kg / mu, which seriously restricts the high and stable yield of cotton. However, within the depth of 20-50m in the above-mentioned areas, there are relatively abundant groundwater (moderately salty water) with a salinity of 3-7g / L and groundwater with a salinity of 7-10g / L (salt water). Existing test results have shown that using groundwater (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/00A01G1/00
CPCY02A40/22
Inventor 周金龙董新光姚新华栗现文李巧郭晓静赵玉杰张吉胜
Owner XINJIANG AGRI UNIV
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