Variable irrigation management decision-making method

A decision-making method and irrigation management technology, applied in the field of variable irrigation management decision-making, can solve the problems of limiting the popularization and application of variable irrigation technology, lack of other problems, and achieve the effects of improving water management accuracy, improving measurement accuracy and reducing costs.

Active Publication Date: 2021-06-11
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, the variable irrigation system has achieved commercial production, but there is still a lack of scientific basic information and irrigation decision-making methods to achieve precise spatial variable water management, which limits the popularization and application of variable irrigation technology

Method used

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  • Variable irrigation management decision-making method

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Embodiment Construction

[0063] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0064] Such as figure 1 Shown, the present invention provides a kind of variable irrigation management decision-making method, comprises the following steps:

[0065] S1: Sampling the soil in the root zone of the crops in the area controlled by the sprinkler, and measuring the particle size composition of the sampled soil;

[0066] S2: Based on the soil particle size, the sprinkler control area is managed according to the AWC of the soil available water in the root zone of the crop, and the low AWC management area, the medium AWC management area and the high AWC management area are obtained;

[0067] S3: Based on the divided AWC management area, construct and optimize the soil moisture sensor network;

[0068] S4: Install ground fixed canopy temperature sensors where soil moisture sensors are deployed in high AWC management areas;

[0069] S5: Constru...

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Abstract

The invention discloses a variable irrigation management decision-making method, which comprises the following steps: S1, carrying out soil sampling on crop root zones in a control area of a sprinkler, and measuring the size fraction composition of the sampled soil; S2, performing management zoning on the control area of the sprinkler according to the available water content (AWC) of soil in the crop root zones; S3, constructing an optimized soil moisture sensor network; S4, arranging a ground fixed canopy temperature sensor; S5, constructing an optimized airborne canopy temperature sensor network by taking the central fulcrum shaft as a circle center; and S6, conducting variable irrigation through the optimized soil moisture sensor network, the fixed canopy temperature sensor, the optimized airborne canopy temperature sensor network and an automatic weather station. According to the variable irrigation management decision-making method, the arrangement positions and the number of the soil moisture sensor network and the canopy temperature sensor network are optimized, the measurement precision is improved, and the cost of a variable irrigation system is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural information measurement and agricultural irrigation, and in particular relates to a variable irrigation management decision-making method. Background technique [0002] Compared with the traditional uniform irrigation, the variable irrigation system can realize variable spraying along the traveling direction of the sprinkler and the direction of the truss at the same time, which has the potential advantage of improving water management level and water use efficiency. At present, the variable irrigation system has been commercialized, but there is still a lack of scientific basic information and irrigation decision-making methods to achieve precise spatial variable water management, which limits the popularization and application of variable irrigation technology. In order to give full play to the advantages of variable irrigation technology, the most critical research is to integrate complex ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/16
CPCA01G25/16A01G25/167G01N2033/245G01N33/246G01K1/026G01W1/10G01W2001/006G01W1/04A01G25/00
Inventor 赵伟霞李久生栗岩峰王珍王军
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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