On 27 February, members of the Safe-H2O-Farm team of the University of Almeria held an information event with local stakeholders. In the picture, Teresa Peña (first right) and Jenifer Martinez (second right), from UAL, demonstrate to Gladys Sánchez (first left; technical advisor of Coexphal) and Esther Molina (second left; farmer) the use of proximal optical sensors (SPAD chlorophyll meter and Greenseeker handheld NDVI sensor) as monitoring tools to guide N fertilization in greenhouse tomato.