2011; Malézieux et al., 2009). Multiple ap- proaches and practices have emerged with the purpose of increasing agricultural production while reducing the negative impact on the environment. A clear example is the use of legumes in different production systems as in organic production, agroforestry, permaculture and conservation agriculture3. Legumes are integrated into the farming systems in order to improve water cycles and nutrients in the soil, and also maximize crop residues (Neely & Fynn, 2012).