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Evaluation of an experimental system of soil moisture registration for irrigation management in potted vineyard (Vitis vinifera L. CV Bobal) of multi-depth temperature compensation based in resistivity measurements

Author

Listed:
  • Oates, M.J.
  • de León, A.L. Vázquez
  • Intrigliolo, D.S.
  • Martínez, J.M. Molina
  • Ruiz-Canales, A.

Abstract

Measurement of soil moisture is a fundamental parameter for irrigation scheduling. In order to determine this parameter, many types of sensors are employed. Some of these sensors for soil moisture measurements are based on electric resistivity. Measurements are affected by many factors including soil temperature, length of probes, amongst others, that can cause incorrect determination of soil moisture levels. Consequently, this can lead to inappropriate or unnecessary irrigation. The main objective of this paper is the presentation of results of several experiments focused on determining adequate temperature compensation for a simple soil moisture measurement and registration system based on resistivity measurements (Wenner compensation). Moreover, a comparison between the data obtained by this device and a reference sensor is included. The device was calibrated in a plot with potted vineyards (Vitis vinifera L. cv Bobal on 110R) under drip irrigation and additional conditions. Results are adequate and include a method of compensation of measured values based in a rolling average model of soil temperature with a good agreement. A simple weighed combination of box temperature of the device and 14cm deeper temperatures can provide a useful level of Wenner compensation. Additionally, this device has a competitive price and is adequate for water management in crops.

Suggested Citation

  • Oates, M.J. & de León, A.L. Vázquez & Intrigliolo, D.S. & Martínez, J.M. Molina & Ruiz-Canales, A., 2015. "Evaluation of an experimental system of soil moisture registration for irrigation management in potted vineyard (Vitis vinifera L. CV Bobal) of multi-depth temperature compensation based in resistivit," Agricultural Water Management, Elsevier, vol. 151(C), pages 126-135.
    • Handle: RePEc:eee:agiwat:v:151:y:2015:i:c:p:126-135
    DOI: 10.1016/j.agwat.2014.10.029
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    Cited by:

    1. Oates, M.J. & Fernández-López, A. & Ferrández-Villena, M. & Ruiz-Canales, A., 2017. "Temperature compensation in a low cost frequency domain (capacitance based) soil moisture sensor," Agricultural Water Management, Elsevier, vol. 183(C), pages 86-93.
    2. López-Riquelme, J.A. & Pavón-Pulido, N. & Navarro-Hellín, H. & Soto-Valles, F. & Torres-Sánchez, R., 2017. "A software architecture based on FIWARE cloud for Precision Agriculture," Agricultural Water Management, Elsevier, vol. 183(C), pages 123-135.

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