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Open AccessArticle

Field Performance of Nine Soil Water Content Sensors on a Sandy Loam Soil in New Brunswick, Maritime Region, Canada

1
Potato Research Centre, 850 Lincoln Road, P.O. Box 20280. Agriculture and Agri-Food Canada, Fredericton, New Brunswick, Canada
2
Faculty of Forestry & Environmental Management, University of New Brunswick, Fredericton, New Brunswick, Canada
*
Author to whom correspondence should be addressed.
Sensors 2009, 9(11), 9398-9413; https://doi.org/10.3390/s91109398
Received: 27 October 2009 / Revised: 10 November 2009 / Accepted: 16 November 2009 / Published: 24 November 2009
(This article belongs to the Section Chemical Sensors)
An in situ field test on nine commonly-used soil water sensors was carried out in a sandy loam soil located in the Potato Research Center, Fredericton, NB (Canada) using the gravimetric method as a reference. The results showed that among the tested sensors, regardless of installation depths and soil water regimes, CS615, Trase, and Troxler performed the best with the factory calibrations, with a relative root mean square error (RRMSE) of 15.78, 16.93, and 17.65%, and a r2 of 0.75, 0.77, and 0.65, respectively. TRIME, Moisture Point (MP917), and Gopher performed slightly worse with the factory calibrations, with a RRMSE of 45.76, 26.57, and 20.41%, and a r2 of 0.65, 0.72, and 0.78, respectively, while the Gypsum, WaterMark, and Netafim showed a frequent need for calibration in the application in this region. View Full-Text
Keywords: sensor performance; soil water content sensor; statistical analysis sensor performance; soil water content sensor; statistical analysis
MDPI and ACS Style

Chow, L.; Xing, Z.; Rees, H.W.; Meng, F.; Monteith, J.; Stevens, L. Field Performance of Nine Soil Water Content Sensors on a Sandy Loam Soil in New Brunswick, Maritime Region, Canada. Sensors 2009, 9, 9398-9413.

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