Brose, Edemar, and Edoard Schaffarth. 2014. “Nodulation of White Clover Inoculated Whith Two Rhizobium Trifolii Strains under Different Al and Mn Levels in Nutrient Solution”. Pesquisa Agropecuaria Brasileira 24 (6): 693-98. https://doi.org/10.1590/S1678-3921.pab1989.v24.15867.