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Crop physiological water shortage diagnosis method and system

A diagnostic method and physiological technology, applied in the diagnosis of crop physiological water shortage based on chlorophyll fluorescence detection, and in the field of crop physiological water shortage diagnosis, achieving the effects of simple, fast and accurate method, overcoming complex structure, and improving diagnostic accuracy

Active Publication Date: 2019-01-18
CHANGSHU JIASHENG AGRI SCI & TECH DEV
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This method is feasible in theoretical simulation research, but no system has been built for experimental verification

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  • Crop physiological water shortage diagnosis method and system
  • Crop physiological water shortage diagnosis method and system
  • Crop physiological water shortage diagnosis method and system

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0019] Such as figure 1 As shown, the physiological water shortage diagnosis system based on chlorophyll fluorescence crops includes a water pump 1, a solenoid valve 2, an intelligent flow meter 3, a soil moisture sensor 4, a cultivation tank 5, a chlorophyll fluorescence sensor 6, an embedded system 7, a water pump 1, an electromagnetic The valve 2 is connected with the embedded system 7 as the output part of the system; the embedded system 7 is connected with the intelligent flow meter 3, the soil moisture sensor 4 and the chlorophyll fluorescence sensor 6 as the input part of the system; the cultivation tank 5 is used for planting crops . The chlorophyll fluorescence sensor 6 is placed at 10 cm above the measured leaves, and the soil water content sensor 4 is placed...

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Abstract

The invention discloses a crop physiological water shortage diagnosis method and system. A water pump and an electromagnetic valve are controlled through an embedded system to control the water content of a substrate in a cultivation tank; meanwhile, a soil water content sensor and a chlorophyll fluorescence sensor are used for acquiring chlorophyll fluorescence parameters under different substrate water content; and the logistic data fitting analysis is performed to obtain a crop physiological water shortage diagnosis eigenvalue as an initial value for entering the logarithmic decrease period. The chlorophyll fluorescence is a photosynthesis probe; a chlorophyll fluorescence parameter is used for characterizing the physiological water shortage degree of a crop; the diagnosis is carried out according to the water demand requirement of the crop; and the diagnosis method has the characteristics of high accuracy, rapid measurement, no damage, internality monitoring and the like. Accordingto the chlorophyll fluorescence-based crop physiological water shortage diagnosis method, the real-time diagnosis of crop physiological water shortage can be achieved, and the irrigation is guided bymeasuring whether the crop is in water shortage or not, so that the irrigation is more timely and water-saving.

Description

technical field [0001] The invention relates to the technical field of nondestructive monitoring of agricultural vegetation information, in particular to a method for diagnosing physiological water shortage of crops, in particular to a diagnostic method for detecting physiological water shortage of crops based on chlorophyll fluorescence. Background technique [0002] In agricultural production, woodland planting, park greening, road green belt, golf course and other environments, it is often necessary to irrigate plants on a large scale. Plants cannot survive without water. It can be seen that irrigation is important to plant growth. Under the existing conditions Most of them use artificial irrigation or electronic system irrigation. Over-irrigation and under-irrigation will affect the normal growth of plants. Moderate irrigation according to the physiological needs of plants is the best choice. [0003] Chinese patent (CN105830871A) discloses an irrigation control system f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/64
Inventor 王纪章李永顾容榕周静
Owner CHANGSHU JIASHENG AGRI SCI & TECH DEV
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