Pengaruh Kosentrasi Dan Interval Waktu Pemberian Pupuk Organik Cair Urin Kambing Terhadap Tanaman Sawi Samhong (Brassica juncea L.) Pada Budidaya Hidroponik Rakit Apung

Abstract

Samhong mustard (Brassica juncea L.) is a highly nutritious vegetable with a short harvest period and promising economic potential. However, land-use conversion has become an obstacle in conventional farming. Hydroponics, particularly the Deep Water Culture (DWC) or floating raft system, presents an effective alternative due to its efficient use of land, water, and nutrients. This study aimed to determine the effect of concentration and application interval of goat urine liquid organic fertilizer (LOF) on the growth and yield of samhong mustard in a floating raft hydroponic system. The research used a Completely Randomized Design (CRD) with two factors: concentration (15 ml/L, 20 ml/L, and 25 ml/L) and application interval (every 5 days, 6 days, and 7 days), with three replications for each treatment, resulting in a total of 27 experimental units. The results showed that the concentration of LOF significantly affected the number of leaves and root weight, while the application interval only influenced the number of leaves. The interaction between concentration and application interval had a significant effect on consumable weight and root length. The best result was obtained from the combination of 25 ml/L concentration with an application interval of once every 7 days.