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Sustainable method for saline irrigation of farmlands in arid regions based on crop rotation of halophytes

A technology for halophytes and arid areas, applied in botany equipment and methods, soil preparation methods, plant cultivation, etc., can solve problems such as increasing water content and affecting crop growth activities

Active Publication Date: 2021-01-22
新疆中农宏远农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned areas are rich in shallow groundwater or agricultural drainage with a salinity of 3-10g / L. There is a duality in saline water irrigation. While increasing the water content, it also brings in salt, and the soil has potential salinization. crisis, further affecting crop growth activities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] From 2018 to 2020, the invention conducted a saltwater irrigation test on farmland in the 31st Regiment of the Second Division of the Xinjiang Production and Construction Corps:

[0026] Lot selection:

[0027] a. During the autumn rest period, choose the sandy soil farmland along the alkali discharge canal;

[0028] Laying the drain pipe:

[0029] b. First, punch 60 holes / m on the upper surface of the PVC pipe, with a hole diameter of 5mm, and then wrap the PVC pipe with a layer of geotextile after drilling. The geotextile and gravel layer are used as the outsourcing filter layer, and a ball valve is installed at the outlet of the PVC pipe;

[0030] c. Ditch the vertical alkali drainage ditch with a distance of 25m and a ditch depth of 2m. After ditching, fill 15cm of gravel with a particle size of 1cm from bottom to top, and lay the PVC pipe in step b with a diameter of 125mm on the gravel, with the perforated side facing upwards , then cover the PVC pipe with 15cm ...

Embodiment 2

[0042] From 2018 to 2020, the invention conducted a saltwater irrigation test on farmland in the 33rd regiment of the second division of the Xinjiang Production and Construction Corps:

[0043] Lot selection:

[0044] a. During the autumn rest period, choose the sandy soil farmland along the alkali discharge canal;

[0045] Laying the drain pipe:

[0046] b. First, punch 60 holes / m on the upper surface of the PVC pipe, with a hole diameter of 5mm, and then wrap the PVC pipe with a layer of geotextile after drilling. The geotextile and gravel layer are used as the outsourcing filter layer, and a ball valve is installed at the outlet of the PVC pipe;

[0047]c. Ditch the vertical alkali discharge ditch with a distance of 30m and a ditch depth of 2m. After ditching, fill 15cm of gravel with a particle size of 2cm from bottom to top, and lay the PVC pipe in step b with a diameter of 125mm on the gravel, with the perforated side facing up , then cover the PVC pipe with 15cm deep ...

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PUM

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Abstract

The invention relates to a sustainable method for saline irrigation of farmlands in arid regions based on crop rotation of halophytes. The sustainable method comprises the following steps that a sandyfarmland in southern Xinjiang is selected, hidden drainage pipes are laid, and horizontal conveying and vertical salt leaching of soil are carried out; deep scarification is combined with fertilization and soil preparation to dredge vertical water flow of the soil, and salt in a drip irrigation salt deposition area is dissolved to flow to the hidden pipes; fresh water dry sowing and wet emergingand two times of seedling stage drip irrigation are carried out, saline water is introduced into a drip irrigation system from the end of April to early June and flood runoff is introduced into the drip irrigation system from mid-June to August, and winter irrigation is performed in a fallow period of a rich water season every three years, so that a water-saving irrigation system suitable for local places is formed; after crops are planted for two years, crop rotation of the halophytes is conducted for one year, and a crop rotation system with the classified halophytes with salt transferring and soil fertilizing functions as the core is formed; furrow and ridge micro-terrains are constructed to give play to the function of the halophytes, and a venturi fertilizer applicator is adopted to drop water-soluble acid fertilizer, so that farmland production and soil desalination are guaranteed; not only is key-period life-saving water supplemented to cope with drought yield reduction and uncollected dilemma, but also a farmland soil water-salt migration path is got through, agricultural production is ensured, and technical examples are provided for relieving seasonal water shortage, reasonably developing the saline water and maintaining soil quality.

Description

technical field [0001] The invention provides a sustainable method for salty irrigation of farmland in arid areas based on halophyte rotations, and relates to a planting method that uses agronomic engineering, halophytes, and crop rotation systems to solve the problem of saline water irrigation in arid areas to ensure soil quality. Background technique [0002] The shortage of fresh water resources in southern Xinjiang and the inconsistency between the wet season and the farmland irrigation water season restrict the regional agricultural production, economic development and social stability. Although the water stored in the reservoir from August to October at the end of the flood season can play a certain role in deployment, it can only maintain the sowing period (early April). There is no water available from April to June. Agriculture experiences severe seasonal drought every year. Especially in the lower reaches of the rivers, the rivers stopped flowing, and during consec...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G22/50A01G22/20A01G20/00A01G22/00A01G25/00
CPCA01B79/02A01G22/50A01G22/20A01G20/00A01G22/00A01G25/00Y02A40/22
Inventor 张科田长彦赵振勇蒋磊石秋梅宫江平荆卫民张福海
Owner 新疆中农宏远农业科技有限公司