20.500.12556/RUL-135668 Evaluation of default, soil-specific, and clay content correction calibration functions for dielectric sensors in soils with differing properties Correct soil water content measurement is important for various environmental and agricultural applications. The aim of thisstudy was to evaluate the performance of two commercially available dielectric sensors, the SM150T (Delta-T Devices) and TRIME-Pico 32(IMKO). We evaluated the manufacturer’s calibration functions and the two-point calibration function recommended by Delta-T Devices.The coefficients of the two-point calibration showed a statistically significant dependence on clay content. Because the soils testedcontained a wide range of clay contents, a clay content correction function was developed. Soil-specific calibration functions were alsodeveloped. In general, measurement errors were the largest when the manufacturer’s calibration was used, but were smaller for the SM150T[root mean square error (RMSE) of 0.011 to0.051m3m−3] compared to the TRIME-Pico 32 (RMSE of 0.030 to0.060m3m−3). The errorsdecreased after applying the clay content correction function for TRIME-Pico 32. For both sensor types, the two-point calibration reducedthe errors, and the soil-specific calibration yielded the lowest error rates. soil water measurements soil properties dielectric sensors calibration voda v tleh vsebnost vode v tleh lastnosti tal meritve dielektrični senzorji kalibracija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-24 10:06:27 2022-03-24 10:06:31 2022-09-14 04:14:33 0000-00-00 00:00:00 2022 0 0 11 str. iss. 6 (04022016) Vol. 148 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-03-22 631.4 0733-9437 10.1061/(ASCE)IR.1943-4774.0001677 102113795 RAZ_Pecan_Ursa_2022.pdf RAZ_Pecan_Ursa_2022.pdf 1 1455B055842FA3EF4A0877F030C45283 e531c861a04644506d9e6f5d63cc1c027b694f169225c6b05383dc15d35fef2f 98dc50ce-ab52-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154892 https://ascelibrary.org/doi/epdf/10.1061/%28ASCE%29IR.1943-4774.0001677 1 b1aea172-ab51-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154891 Biotehniška fakulteta 0 0 0