Equal Substitution of Synthetic Nitrogen Fertilizer with Azolla Compost on Growth, Yield, and Nitrate Content of Green Onion in Ultisols . Akta Agrosia [Internet]. 2023 Dec. 31 [cited 2025 Jun. 3];26(2):87-9. Available from: https://ejournal.unib.ac.id/Agrosia/article/view/30518