The EU-PRIMA funded project SUPROMED (Sustainable Agricultural Production in Water Limited Environment), and the Faculty of Agricultural Sciences of the Lebanese University, organized a thematic training on Saturday 12 June 2021 on 'Decision Support System for Irrigation Advisory' at Domain Tanayel in close collaboration with Arc-en-Ciel. Welcome statements by Prof. Nadine Nassif, Dean of the Faculty of Agriculture of the Lebanese University, and Prof. Abdel Halim Mouneimne, Head of Environment Department, emphasized the importance of the topic and the collaboration with EU. Thorough description of the decision support system was provided by Prof. Fadi Karam, Project Manager, and Eng. Carole Hachem. The theoretical session was followed by a practical field demonstration of Sentek Probe being tested for first time in Lebabon. Our deep thanks go to the European Commission for the continuing support, PRIMA Foundation & SUPROMED Project, Arc-en-Ciel and all our partners and stakeholders.