Pengaruh Vermikompos Dan Pupuk Urea Terhadap Pertumbuhan Dan Produksi Tanaman…

ABSTRACT This research aims to determine the effect of the interaction between vermicompost and urea fertilizer, as well as knowing the best dose of each single factor on the growth and production of kailan (Brassica oleracea L.) in Ultisol media. This research was conducted at the Experimental Garden of the Faculty of Agriculture, Riau University, from February to March 2023. This research is …