Costa, Newton de Lucena. “Nitrogen Fertilization and Association of Elephant-Grass (<i>Pennisetum purpureum< i> Cv. Cameroon) With Tropical Forage Legumes”. Pesquisa Agropecuaria Brasileira 30, no. 3 (March 1, 1995): 401–408. Accessed November 15, 2025. https://apct.sede.embrapa.br/pab/article/view/4321.