Off-Site Calibration Approach of EnviroScan Capacitance Probe to Assist Operational Field Applications

Soil water content or soil moisture is considered one of the most critical properties for crop production, irrigation, and environmental studies. The technical development measurement devices swift, but calibration among field conditions still not entirely resolved. Accurate requires samples taken right next to sensor that disturbs site changes conditions. Real operation probe represent larger areas have undisturbed soils around probe. These would describe parcel’s general start providing data from time installation. This study aimed compare several potential solutions off-site an operational EnviroScan (Sentek Technologies, Stepney South, Australia). performances default texture-specific equations provided by manufacturer were compared with laboratory approaches. Two statistical parameters, coefficient determination (R2) root square mean error (RMSE) was used determine logarithmic model results. results show in all three classes relatively low RMSE values 10–15 R2 ranging 0.4 0.8. However, significant refinement achieved selecting manufacturer’s libraries. often yielded quite satisfactory results, RMSEs between 2 4. Similar exercises, reapplication these questionable due severely changed processed