Zilli, Jerri Édson, Romano Roberto Valicheski, Norma Gouvêa Rumjanek, Jean Luis Simões-Araújo, Francisco Rodrigues Freire Filho, and Maria Cristina Prata Neves. “Symbiotic Efficiency of Cowpea <i>Bradyrhizobium< i> Strains in Cerrado Soils”. Pesquisa Agropecuaria Brasileira 41, no. 5 (May 1, 2006): 811–818. Accessed June 1, 2026. https://apct.sede.embrapa.br/pab/article/view/7210.