An automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water

A technology for high-sand content ditch water and brackish water, applied in chemical instruments and methods, botany equipment and methods, liquid fertilizer pressurized spreading methods, etc. issues of automation

Active Publication Date: 2021-12-31
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the double irrigation of wells and canals is still based on manual implementation, and it is difficult to realize automation, which is time-consuming and labor-intensive.
When brackish water and fresh water are used together, it is difficult to control the time and amount of fresh water irrigation. If the fresh water is not irrigated in time, the salinity will cause stress to the growth of the crops, and if the fresh water is too frequent, the required fresh water will be too much , failing to meet the requirements of alleviating the shortage of fresh water resources
In addition, for the area along the Yellow River, the water source of the channel mainly comes from the Yellow River water, and the sediment content of the Yellow River water is extremely high, reaching an average of 37.7kg / m 3 , if the Yellow River water is directly used for drip irrigation, it is necessary to build a large area of ​​grit chambers, which will cause waste of land

Method used

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  • An automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water
  • An automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water
  • An automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water

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Effect test

Embodiment

[0035] An automatic irrigation method for combined drip irrigation of underground brackish water and high sand content channel water, such as Figure 1-3 shown, including the following steps:

[0036] S1: Collect the lower limit of suitable moisture content for different crops in salinized areas, and establish a database for the lower limit of suitable water content for different crops in salinized areas; establish a crop root system database based on the root distribution of different crops at different growth stages; establish crops based on the salinity threshold of different salt-tolerant crops Salt tolerance threshold database; measure soil particle size, bulk density and field water holding capacity at different depths, and establish a database of soil physical properties;

[0037] S2: Install the water inlet pipe in the open channel to take water from the open channel, install a trash rack at the water inlet of the water inlet pipe, and set a cover plate on the water in...

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Abstract

The invention provides an automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water, which belongs to the technical field of automatic irrigation. The method measures the soil water and salt value by collecting the water and salt threshold values ​​of different crops; controls the canal water filtration system by detecting the sediment content of the canal water, and prevents the irrigation system from being blocked; Automatic irrigation, provide sufficient water for crops, and ensure that the soil salinity in the main root zone is within a certain range, reduce salinity stress, use fresh water to a minimum, achieve the effect of saving fresh water, save time and effort, save water and increase production, and use water efficiently.

Description

technical field [0001] The invention relates to the technical field of automatic irrigation, in particular to an automatic irrigation method for combined drip irrigation of underground brackish water and high-sand canal water. Background technique [0002] In the arid northwest region of our country, there is little rainfall and large evaporation. It is an area where there is no agriculture without water diversion irrigation. However, this area is rich in underground brackish water resources, and only 2-5g / L of brackish water is available in the area along the Yellow River. up to 3 billion m 3 , while the brackish water resources currently exploited and utilized are only 50 million m 3 , accounting for only 1.7% of the available volume, with a large space for use. It can be seen that the brackish underground water in this area will be the main water source for supplementing irrigation water, which is of great significance for ensuring agricultural production in arid areas....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C23/00A01C23/04A01G25/16A01G25/02G06Q50/02C02F9/02
CPCA01C23/007A01C23/042A01G25/16A01G25/167A01G25/02G06Q50/02C02F1/001C02F1/38C02F2301/08Y02A40/22
Inventor 李仙岳张月红陈宁史海滨闫建文胡琦田彤
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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