De-Polli, Helvécio, Milton Alexandre T. Vargas, Avílio A. Franco, and Johanna Döbereiner. 2014. “Effects of Flooding on Nodulation and Growth of Tropical Forage Legumes”. Pesquisa Agropecuaria Brasileira 8 (2): 27-34. https://doi.org/10.1590/S1678-3921.pab1973.v8.17319.