Transformation in soil and availability to plants of 15N applied as inorganic fertilizer and grass residue. Journal of Science and Technology, [S. l.], v. 26, n. 2, 2016. DOI: 10.4314/just.v26i2.702. Disponível em: https://journal.knust.edu.gh/index.php/just/article/view/702. Acesso em: 11 jun. 2026.