WALKER, T. The value of N-fixation to pastoral agriculture in New Zealand. NZGA: Research and Practice Series, [S. l.], v. 6, p. 115–118, 1996. DOI: 10.33584/rps.6.1995.3349. Disponível em: https://www.nzgajournal.org.nz/index.php/rps/article/view/3349. Acesso em: 28 oct. 2026.