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A sustainable method for salty irrigation of farmland in arid regions based on halophyte rotation

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: 2022-04-15
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 salty irrigation of farmland in arid areas based on halophyte rotation. The method selects sandy farmland in southern Xinjiang, lays and buries concealed drainage pipes to transport soil vertically and sprinkle salt; deep loosening combined with fertilization and site preparation to open up the soil Vertical water flow, salt in the area of ​​dissolved drip irrigation and salt accumulation flows to the hidden pipe; dry sowing of fresh water and drip irrigation twice at the seedling stage, saline water at the end of April-early June, flood runoff from mid-June to August into the drip irrigation system, and every 3 years Winter irrigation during the fallow season in the wet season forms a water-saving irrigation system suitable for the local area; after planting crops for 2 years, rotate halophytes for 1 year to form a crop rotation system centered on classified halophytes that have the functions of moving salt and fertilizing soil; structure The micro-topography of furrows and ridges exerts the function of halophytes and uses Venturi fertilizer applicators to drip water-soluble acid fertilizers to ensure farmland production and soil desalination; it not only replenishes life-saving water in the critical period to deal with the plight of drought reduction and extinction, but also opens up the migration of water and salt in farmland soil Ways to ensure agricultural production, and provide technical examples for alleviating seasonal water shortages, rationally developing 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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Patent Type & Authority Patents(China)
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