Evaluation of Lettuce (Lactuca sativa L.) Production under Hydroponic System: Nutrient Solution Derived from Fish Waste vs. Inorganic Nutrient Solution

Organic fresh products are appreciated and gaining a good reputation regarding human health environmental concerns. Despite the fact that hydroponics commonly used in vegetable production, growers looking for sustainable cultivation systems. Therefore, objective of this study was to investigate effect using an organic-based nutrient solution (NS) derived from fish waste hydroponic system on vegetative growth production lettuce compared conventional inorganic NS. Plant growth, yield, physiological content parameters were determined. The results revealed overall biomass organic NS grown relatively lower than those Stomata density significantly higher one. However, total chlorophyll, carotene, phenolic compounds, flavonoid contents, as well antioxidant activity Leaf at harvest impacted by type fertilizer. Based these findings, system, liquid fertilizer (as alternative source) requires further improvements achieve optimal yield comparable