AHMAD, M.; KHAN, I.; MUHAMMAD, D.; MUSSARAT, M.; SHAFI, M. I. Effect of Phosphorus Sources and their Levels on Spring Maize: Effect of Phosphorus on Spring Maize. Biological Sciences - PJSIR, [S. l.], v. 62, n. 1, p. 8–14, 2019. DOI: 10.52763/PJSIR.BIOL.SCI.62.1.2019.8.14. Disponível em: http://v2.pjsir.org/index.php/biological-sciences/article/view/344. Acesso em: 1 may. 2024.