Stepwise Calibration & Field Application of Our Sci Reflectometer for Soil Organic Carbon Monitoring and Advisory Services in Moroccan Drylands

Mina Kumari Devkota Wasti, Asmae Bagger, Krishna Devkota, Samar Attaher, Daniel Gerald Ter Avest. (29/12/2025). Stepwise Calibration & Field Application of Our Sci Reflectometer for Soil Organic Carbon Monitoring and Advisory Services in Moroccan Drylands. Beirut, Lebanon: International Center for Agricultural Research in the Dry Areas (ICARDA).

Abstract

This report describes calibration and validation of affordable, fine-scale hand-held Our Sci-Reflectometer, a soil organic carbon monitoring device and generating actionable advisory for improving soil organic carbon in Dryland soil in Morocco. This describes an end-to-end workflow for rapid, geo-referenced monitoring of soil organic carbon (SOC) in Moroccan dryland croplands using the Our Sci-Reflectometer integrated with the SurveyStack Kit mobile application. The workflow converts discrete-wavelength soil reflectance measurements (10 LEDs spanning 365–940 nm) and embedded environmental sensors (temperature, humidity, pressure) into (i) SOC predictions, (ii) SOC status classes, and (iii) field-level, actionable soil-health recommendations displayed immediately to farmers/extension staff.