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Terahertz wave based method and system for detecting water content of plant leaves

A plant leaf and terahertz technology, applied in the detection field, can solve the problems of long measurement time and cumbersome steps, and achieve the effect of short measurement time, simple steps and improved detection efficiency

Inactive Publication Date: 2016-10-12
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology

[0004] In order to solve the defects of destructive, long measurement time and cumbersome steps in the existing method of water c

Method used

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  • Terahertz wave based method and system for detecting water content of plant leaves
  • Terahertz wave based method and system for detecting water content of plant leaves
  • Terahertz wave based method and system for detecting water content of plant leaves

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Embodiment Construction

[0049] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0050] Such as figure 1 As shown, the embodiment of the present invention provides a method for detecting water content of plant leaves based on terahertz waves, including:

[0051] S1: Obtain the moisture content of the plant leaf sample;

[0052] Among them, before obtaining the moisture content of the plant leaf sample, the leaves are pretreated. Specifically, after the plant leaf samples are picked, wipe the surface of the leaves with a paper towel to remove dust on the surface of the leaves, so as to avoid excessive damage to the leaves by other substances. Hertzian Imaging Spectrum Causes Disturbance, Weighing Leaf Mass m 1 And record, put the measured leaves in a clean and pollution-free place, repeat the measurement steps every day, and measure continuously to obtain the mass m of the leaves weighed every day 2 , m 3 , ..., after the measurem...

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Abstract

The present invention relates to a method and system for detecting water content of plant leaves based on terahertz waves, comprising: obtaining the water content of plant leaf samples; Hertz spectrum average value and moisture content, establish a moisture content prediction model; obtain the terahertz spectrum average value of the plant leaves to be tested, input the terahertz spectrum average value of the plant leaves to be measured into the moisture content prediction model, and obtain the moisture content of the plant leaves to be measured content. The embodiment of the present invention provides a technical solution. According to the established water content prediction model, the water content of the plant leaf to be measured can be obtained by collecting the terahertz spectral data of the plant leaf to be measured without removing the plant leaf to be measured from the plant. Under this method, the dynamic non-destructive online detection of the water content of the plant leaves is realized without causing damage to the plants, the measurement time is short, the steps are simple, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method and system for detecting water content of plant leaves based on terahertz waves. Background technique [0002] The water content of plant leaves is one of the important regulatory factors affecting plant growth. It is of great significance to dynamically detect the water content in plant leaves and adjust the amount of water irrigation in the process of plant growth in time. When the water content in the leaves of the plants decreases, if the irrigation cannot be performed in time, the plants will grow slowly due to insufficient water supply, and in severe cases, they will wither, which will greatly affect the yield of the crops. If the water content of the leaves of the plants increases, the irrigation should be suspended to avoid the death of the plants due to excessive water. [0003] At present, the water content of plant leaves is tested by destroying and calcula...

Claims

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Application Information

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IPC IPC(8): G01N21/3581G01N21/3563
CPCG01N21/3563G01N21/3581G01N2021/8466G01N21/3554G01N21/3586
Inventor 李斌龙园
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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