Electrical Conductivity Measurements in Agriculture: The Assessment of Soil Salinity
Soil salinity is an important issue constraining the productivity of irrigation agriculture around the world. The standard method for soil salinity assessment is based on a laboratory method that is cumbersome and gives rise to limitations for data-intensive works. The use of sensors for the asse...
| Autores principales: | , |
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| Formato: | bookPart |
| Lenguaje: | Inglés |
| Publicado: |
IntechOpen
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6738 https://www.intechopen.com/books/new-trends-and-developments-in-metrology/electrical-conductivity-measurements-in-agriculture-the-assessment-of-soil-salinity |
| Sumario: | Soil salinity is an important issue constraining the productivity of irrigation agriculture
around the world. The standard method for soil salinity assessment is based on a laboratory
method that is cumbersome and gives rise to limitations for data-intensive works. The
use of sensors for the assessment of the apparent electrical conductivity (EC) of soils offers
a way to overcome these constraints. These sensors are based on three electromagnetic
phenomena, namely, electrical resistivity, electromagnetic induction, and reflectometry.
Each class of sensors presents its own advantages and drawbacks. In the following
chapter, these are presented along with the most popular commercial EC sensors used in
nowadays agriculture, equations for the assessment of soil salinity on basis sensor
measurements, some examples of application, and present and future development
trends. |
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