Poultry Droppings and inorganic fertilizer to improve pearl millet yield in Niger. International Journal of Manures and Fertilizers, [S. l.], v. 1, n. 1, p. 215–222, 2012. Disponível em: https://ijpp.org/journal/index.php/ijmf/article/view/277. Acesso em: 23 mar. 2026.