The aim of this study was to establish DRIS (Diagnosis and Recommendation Integrated System) norms Nutritional Optimal Ranges (NOR) for ‘Rojo Brillante’ Protected Designation Origin (PDO) ‘Ribera del Xúquer’. database contained 800 leaf samples collected in different crop phenological stages [after flowering (AF), fruit enlargement (FE), colouring (FC), harvesting HV)]. (78) were established ma...