Chiristiana, Marwanto, Marlin, Merakati Handajaningsih and Septiana Anggraini 2023. Equal Substitution of Synthetic Nitrogen Fertilizer with Azolla Compost on Growth, Yield, and Nitrate Content of Green Onion in Ultisols . Akta Agrosia. 26, 2 (Dec. 2023), 87–97. DOI:https://doi.org/10.31186/aa.26.2.87-97.