Skripsi
PERTUMBUHAN DAN HASIL KAILAN (Brassica oleracea var. alboglabra) PADA PEMBERIAN PUPUK ORGANIK CAIR SEBAGAI ALTERNATIF PENGURANGAN PUPUK KIMIA DI DAERAH PERKOTAAN
This study aimed to determine the effect of various doses of liquid organic fertilizer (LOF) on the growth and yield of kailan (Brassica oleracea L.). The research was conducted in Jakabaring District, Palembang City, South Sumatra Province, from September to November 2025. The experiment was arranged using a Randomized Complete Block Design (RCBD) consisting of four treatments and three replications, with each experimental unit comprising four plants, resulting in a total of 48 plants. The LOF treatments were P1 = 3 ml/L, P2 = 6 ml/L, P3 = 9 ml/L, and P4 = 12 ml/L. Data were analyzed using analysis of variance (ANOVA) followed by the Least Significant Difference (LSD) test at the 5% level when significant effects were detected. The results showed that the application of LOF at different doses did not significantly affect most growth and yield parameters of kailan. However, the 6 ml/L treatment consistently produced the highest mean values for several parameters, including plant height (40.4 cm), leaf length (22.0 cm), total fresh weight (123.5 g), leaf fresh weight (90.4 g), stem fresh weight (33.4 g), stem dry weight (4.0 g), and stem length (23.4 cm). In conclusion, the application of LOF up to 12 ml/L did not significantly enhance the growth and yield of kailan; nevertheless, the 6 ml/L dose showed a relatively better growth response compared to the other treatments and may be considered the most promising dose under the conditions of this study.