AKINRINDE, E.; OKELEYE, K. Short- and long-term effects of sparingly soluble phosphates on crop production in two contrasting Nigerian Alfisols. West African Journal of Applied Ecology, [S. l.], v. 8, n. 1, 2009. DOI: 10.4314/wajae.v8i1.45803. Disponível em: https://www.ajol.info/index.php/wajae/article/view/45803. Acesso em: 12 nov. 2026.