Fitriani, T., Pangaribuan, D. H., Niswati, A., & Yusnaini, S. (2020). Improving nitrogen fertilizer efficiency with the addition of compost extracts to kailan (Brassica oleracea L.) plants with wick hydroponic cultivation. SAINS TANAH - Journal of Soil Science and Agroclimatology, 17(2), 122-128. https://doi.org/10.20961/stjssa.v17i2.41370