Testing the Effect of High pH and Low Nutrient Concentration on Four Leafy Vegetables in Hydroponics

Low nutrient and high pH of circulating water represent two the main issues to overcome for a successful combination aquaculture hydroponics in aquaponics offering sustainable circular economy solution vegetable production. The purpose this study was screen tolerance four herbs low concentration hydroponics, i.e., green red basils, mint, rocket salad, with focus on plant yield nutraceutical aspects. Results highlighted basil as most tolerant species conditions followed by mint. On contrary, negative effects from were reported especially which strongly affect their marketability parameters. Rocket salad fresh biomass more than halved under nutrients. showed importance testing these agronomic at both variety levels. Despite reduction biomass, leaf pigments not influenced nutrients therefore can be considered parameters minor evaluation species. In conclusion, mint hydroponic has been highlighted. Further investigation coupled fish farming will able reinforce convenience using aquaponics.