CULLETON, Noel. PHOSPHATIC FERTILISER GUIDELINES FOR GRAZING PERMANENT PASTURES. Pastos, [S. l.], v. 29, n. 1, p. 131–138, 2011. Disponível em: https://polired.upm.es/index.php/pastos/article/view/1263. Acesso em: 17 may. 2026.