<![CDATA[Arugula (Eruca sativa), commonly known as rocket (roquette), is a horticultural crop belonging to the Brassicaceae family and is native to the Mediterranean region, the Middle East, and South Asia. It is widely consumed as a salad ingredient or food seasoning. As public awareness of balanced nutrition continues to increase, the market demand for arugula has grown significantly. Therefore, cultivation innovations are needed to improve arugula productivity, including the use of alternatives to synthetic fertilizers to reduce the high production costs. One promising approach is the application of liquid organic fertilizer (LOF) produced from hydroponic vegetable waste. This study was conducted at the Hydroponic Garden of PT Alam Karya Kahuripan, Bogor Regency, West Java, from July to August 2023. The experiment employed a Randomized Complete Block Design (RCBD) with a single factor, namely the dosage of liquid organic fertilizer derived from hydroponic vegetable waste. Five treatments were applied: P0 = no LOF (control), P1 = 50 mL LOF/L, P2 = 100 mL LOF/L, P3 = 150 mL LOF/L, and P4 = 200 mL LOF/L, with five replications. The observed parameters included plant height, number of leaves, root length, and fresh weight. The data were analyzed using analysis of variance (ANOVA), followed by the Least Significant Difference (LSD) test when significant differences were detected. The results demonstrated that the application of liquid organic fertilizer derived from hydroponic vegetable waste significantly affected all observed variables, including plant height, number of leaves, root length, and fresh weight of arugula. The application rate of 200 mL/L produced the highest values for all growth and yield parameters.]]>
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