NIGATU, M. .; ALEMAYEHU, M. .; HAILESELLASSIE, A. Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia. Ethiopian Journal of Science and Technology, [S. l.], v. 11, n. 2, p. 113–127, 2025. Disponível em: https://journals.bdu.edu.et/index.php/EJST/article/view/2596. Acesso em: 4 feb. 2026.