Evaluation of DualEM-II sensor for soil moisture content estimation in the potato fields of Atlantic Canada
| Autor: | Aitazaz A. Farooque, Mahnaz Zare, Farhat Abbas, Qamar Zaman, Melanie Bos, Travis Esau, Bishnu Acharya, Arnold W. Schumann |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Plant, Soil and Environment, Vol 65, Iss 6, Pp 290-297 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1214-1178 1805-9368 |
| DOI: | 10.17221/72/2019-PSE |
| Popis: | The conventional gravimetric methods of estimating soil moisture content (θ) are laborious, time-consuming, and destructive to agricultural fields. We evaluated the performance of DualEM-II sensor in non-destructive way of θ prediction and for predicting θ variations within potato fields in Atlantic Canada. Values of θ were measured from four potato fields in New Brunswick and Prince Edward Island using a pre-calibrated (R2 = 0.98) time domain reflectometry (TDR) from root zone of potato tubers under grid sampling arrangements. Horizontal co-planar (HCP) and perpendicular co-planar (PRP) readings were taken using DualEM-II sensor from the same locations of θ measurements. There was a better correlation between PRP and θ (r: 0.64-0.83) was calculated than between HCP and θ (r: 0.41-0.79). There was no significant difference (R2: 0.60-0.69; RMSE (root mean square error): 2.32-4.02) between the θ values measured with TDR (θM) and those predicted with DualEM-II (θP) confirming that the use of electromagnetic induction technique, evaluated during this study, is labor saving, quick, non-destructive, and accurate and can be considered a precision agriculture tool for efficiently managing soil water in potato fields. |
| Databáze: | Directory of Open Access Journals |
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