FABER, A.; JAROSZ, Z.; KOPIŃSKI, J.; MATYKA, M. The relationships between nitrogen use efficiency and nitrogen input in crop production in Poland. Polish Journal of Agronomy, [S. l.], n. 26, 2016. Disponível em: https://journals.iung.pl/index.php/pja/article/view/254. Acesso em: 7 lis. 2024.