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A method for comprehensively controlling saline-alkali land by combining irrigation and planting

A technology for comprehensive management and saline-alkali land, applied in the direction of soil preparation methods, botany equipment and methods, applications, etc., can solve the problems of waste of water resources, low utilization rate of irrigation water, difficult to avoid water infiltration, evaporation and surface runoff, etc., to achieve Improve soil conditions, solve the serious shortage of fresh water resources, and improve the effect of improvement

Active Publication Date: 2017-03-08
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the water absorption process of plants is a continuous process, all irrigation methods in the past, whether watering, sprinkler irrigation, drip irrigation or infiltration irrigation, are intermittent irrigation. All intermittent irrigation methods are difficult to avoid water infiltration, evaporation and ground runoff. Low utilization rate, resulting in waste of water resources

Method used

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  • A method for comprehensively controlling saline-alkali land by combining irrigation and planting

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] After deep excavation of the saline-alkali land, underground pipelines are laid. The underground pipelines include micro-moisture pipes for irrigation and salt-discharge hidden pipes for salt discharge. The micro-moisture pipes and salt-discharge hidden pipes are laid in parallel. The multiple micro-wetting pipes are all connected to the fresh water storage tank through the fresh water pipeline, and the multiple salt discharge hidden pipes are all connected to the brine recovery tank through the brine recovery pipe.

[0035] Level the saline-alkali land after laying underground pipelines, and carry out irrigation and salt discharge. The irrigation and salt discharge includes underground salt discharge and surface salt discharge. The sequence includes three steps. The first step is to carry out underground salt discharge for 4 days. The pipe uses micro-moist irrigation to irrigate the soil to locally enrich the salt in the soil, and at the same time use the salt-dischargi...

Embodiment 2

[0038] After deep excavation of the saline-alkali land, lay micro-moisture pipes for irrigation and salt-discharge hidden pipes for salt discharge. The micro-moisture pipes and salt-discharge concealed pipes are laid in parallel and arranged in a staggered manner, and the salt discharge pipes The dark tube is arranged at the intersection of the circumferences of two adjacent micro-running tubes. The depth of the micro-moisture pipe buried underground is 50cm, and the distance between every two adjacent micro-moisture pipes is 115cm. The multiple micro-moisture pipes are all connected to the fresh water storage tank through the fresh water pipeline, and the multiple salt discharge hidden pipes are all connected to the brine recovery tank through the brine recovery pipe, and the brine recovered to the brine recovery tank is desalinated through a set of brine desalination treatment equipment After treatment, it is transported to the fresh water storage tank and reused for irrigat...

Embodiment 3

[0042] After deep excavation of the saline-alkali land, lay micro-moisture pipes for irrigation and salt-discharge hidden pipes for salt discharge. The micro-moisture pipes and salt-discharge concealed pipes are laid in parallel and arranged in a staggered manner, and the salt discharge pipes The dark tubes include a first group arranged at the intersection of the circumferences of two adjacent micro-moisture tubes; and a second group arranged below the micro-moisture tubes and on the same circumference as the micro-moisture tubes of the first group. The depth of the first group of micro-moisture pipes buried in the ground is 55cm, and the distance between every two adjacent micro-moisture pipes is 120cm. The multiple micro-moisture pipes are all connected to the fresh water storage tank through the fresh water pipeline, and the multiple salt discharge hidden pipes are all connected to the brine recovery tank through the brine recovery pipe, and the brine recovered to the brine...

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Abstract

The invention discloses a method for comprehensively treating saline and alkaline land through combination of irrigation and planting. The method comprises the following steps: (a) paving underground pipelines, including micro-moisture pipes for irrigation and salt discharge underground pipes for discharging salt; (b) leveling and furrowing the saline and alkaline land for irrigation salt discharge, wherein the irrigation salt discharge includes underground salt discharge and surface salt discharge and specifically comprises the following three steps in sequence: I, performing underground salt discharge; II, performing surface salt discharge, and performing rapid large-area surface salt discharge on the saline and alkaline land subjected to the underground salt discharge through a flood irrigation way; III, repeating the underground salt discharge; (c) planting suaeda salsa on a large area, continuously performing micro-moisture irrigation salt discharge before and after seedling emergence of the suaeda salsa, performing micro-moisture irrigation intermittently after branching of the suaeda salsa till the end of the peak-growth period of the suaeda salsa, pulling up the suaeda salsa by the roots, and planting crops or continually planting the suaeda salsa according to the soil salinity to further reduce salinity.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement, in particular to a technology for comprehensively controlling saline-alkali land by combining irrigation and planting. Background technique [0002] With the continuous deepening of economic development, ecological problems have become increasingly prominent, especially the problem of land salinization in coastal areas has become more prominent. The saline-alkali land in coastal areas has the disadvantages of high salinity, low nutrient, large specific gravity and bulk density, low porosity and permeability coefficient, etc., which greatly restricts the ecological construction and agricultural production in coastal areas. Moreover, in saline-alkali land areas, fresh water resources are severely lacking and irrigation conditions are very limited, which are the main factors affecting plant growth. Therefore, in order to improve the ecological problems in saline-alkali land a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G1/00A01G25/06
CPCY02A40/22
Inventor 王胜
Owner WEIFANG YOURONG IND
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