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Rapid on-site detection method and apparatus for soil salination

A detection device and salinization technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of high analysis cost, time-consuming and labor-intensive, difficult to timely and universal application, etc.

Inactive Publication Date: 2013-12-04
SHANGHAI OCEAN UNIV
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Problems solved by technology

Such a method is difficult to obtain timely and universal application because of the complicated sample pretreatment, which results in time-consuming, labor-intensive and high analysis costs.

Method used

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  • Rapid on-site detection method and apparatus for soil salination
  • Rapid on-site detection method and apparatus for soil salination
  • Rapid on-site detection method and apparatus for soil salination

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Embodiment Construction

[0010] The present invention will be further described below with reference to the drawings and examples.

[0011] The device for quickly detecting the degree of soil salinization consists of a display module, a storage module, a conductivity measurement module with a sinusoidal signal source, and a silicon detector module. The micro-processing IO ports P0.10-P0.17 are used as the 8-bit data lines of the LCD screen, and P1.20, P1.21, P1.22, and P1.23 are used as the control signal lines of the LCD screen; P0.5, P0.6 and P0.7 are used as three-channel input signal terminals to connect to the silicon detector module; P0.1 is connected to the conductivity measurement module with a sinusoidal signal source; P0.2 and P0.3 are used to realize the connection with the storage module Connection of clock and serial port data.

[0012] First, extract image features. The three-dimensional image obtained by the silicon detector must be planarized. The model uses a uniform linear travel scann...

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Abstract

The invention relates to a real-time convenient reliable rapid diagnosis method for salination degree of greenhouse soil and a low-cost on-site detection apparatus, which is installed in a wireless measurement and control network of a greenhouse and deployed on the site for production of greenhouse crops. Simulation research on salination degree of greenhouse soil is carried out, and the method effectively combines the effect of spectrum signals on aberration. On this basis, sample collection of salination degree of soil is established as a reference graph database; and the reference graph database for salination degree of soil comprises prominent features including gray scale, image edge, contour, surface and spectral line. Finally, an obtained graph (including a spectrum information graph) is compared with the reference graph database, thereby realizing inversion and simulation of the status of soil salination; with the addition of soil conductivity information obtained through measurement, the total salt content of the soil can be speculated. The invention provides the on-site detection equipment for soil information of modern greenhouse, has advantages of high efficiency, reliability and convenience for operation, can be used for real-time analysis of soil nutrient status, and provides reliable technical support for scientific guidance for crop fertilization management.

Description

Technical field [0001] The invention relates to a real-time, convenient and reliable method for field diagnosis of soil salinization and a low-cost field detection device, which are installed in a wireless measurement and control network of a greenhouse. Background technique [0002] The traditional method of soil salinization diagnosis is based on conventional indoor chemical quantitative analysis methods, such as detecting total salt content, determining electrical conductivity, and measuring Ca by atomic absorption spectrophotometry 2+ , Mg 2+ Content, using flame photometer method to measure K + , Na + Content, measured Cl by Moral method - Content, using dual indicator method to measure HCO 3 - , CO 3 2- Content, and measuring SO using EDTA volumetric method 1 2- content. Such a method requires complicated sample pre-processing, which results in time-consuming, labor-intensive, high analysis cost, and it is difficult to obtain timely and universal application. [0003] In rece...

Claims

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Application Information

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IPC IPC(8): G01N21/27
Inventor 池涛冯国富陈明张松张鼎松
Owner SHANGHAI OCEAN UNIV
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