Version 1
: Received: 26 September 2024 / Approved: 26 September 2024 / Online: 27 September 2024 (11:32:03 CEST)
How to cite:
Millán, S.; Montesinos, C.; Campillo, C. Evaluation of Different Commercial Sensors for the Development of Their Automatic Irrigation System. Preprints2024, 2024092158. https://doi.org/10.20944/preprints202409.2158.v1
Millán, S.; Montesinos, C.; Campillo, C. Evaluation of Different Commercial Sensors for the Development of Their Automatic Irrigation System. Preprints 2024, 2024092158. https://doi.org/10.20944/preprints202409.2158.v1
Millán, S.; Montesinos, C.; Campillo, C. Evaluation of Different Commercial Sensors for the Development of Their Automatic Irrigation System. Preprints2024, 2024092158. https://doi.org/10.20944/preprints202409.2158.v1
APA Style
Millán, S., Montesinos, C., & Campillo, C. (2024). Evaluation of Different Commercial Sensors for the Development of Their Automatic Irrigation System. Preprints. https://doi.org/10.20944/preprints202409.2158.v1
Chicago/Turabian Style
Millán, S., Cristina Montesinos and Carlos Campillo. 2024 "Evaluation of Different Commercial Sensors for the Development of Their Automatic Irrigation System" Preprints. https://doi.org/10.20944/preprints202409.2158.v1
Abstract
Reliable soil moisture information is essential for accurate irrigation scheduling. A wide range of soil moisture sensors are currently available on the market, but their performance needs to be evaluated as most sensors are calibrated under limited laboratory conditions. The aim of this study was to evaluate the performance of six commercially available moisture sensors (HydraProbe, Teros 10, Teros 11, EnviroPro, CS616 and Drill&Drop) and three tensiometers (Irrometer RSU-C-34, Teros 32 and Teros 21) and to establish calibration equations for a typical sandy soil of the Doñana National Park (Huelva, Spain). The calibration process for soil moisture sensors indicated dif-ferences between factory and corrected equations. All tested sensors improved with adjustments made to the factory calibration, except for the HydraProbe sensor which had a more accurate factory equation for a sandy soil. Among the various sensors tested, the Teros 10, Teros 11, and HydraProbe were found to be the easiest to install, typically positioned with an auger to prevent preferential pathways and ensure adequate sensor-soil contact. For tensiometers, the Teros 32 sensor requires specialized labor for its correct installation, as it must be positioned at a specific angle and maintained with distilled water. All tensiometers need a stabilization period after in-stallation.
Keywords
capacitance; frequency domain reflectometry; impedance; time domain reflectometry; ten-siometers; irrigation; calibration
Subject
Environmental and Earth Sciences, Water Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
