“…The cassava (Manihot sp.) can be produced properly under drought conditions making it the ideal food security crop in family farming (Henkel & Amaral, 2008;Saraiva, Silva, Sousa, Cerqueira, Chagas, & Toral, 2013), while already established species as Solanum mauritianum, Erythrina sp., Luehea grandiflora, Piptadenia gonoacantha, Ricinus communis, Rosmarinus officinalis, Trema micranth, Vernonia polyanthes, and V. polycephala may provide ecosystem services (nitrogen biological fixation, light control, phytomass incorporation, pollination, among others), in the long-and mid-terms. The herbaceous species Crotalaria juncea promote within a short-term nitrogen biological fixation, soil covering (against erosion and to increase water retention) (Madhaiyana, Poonguzhalia, Senthilkumar, Sundaram, & Sa, 2009), besides biomass incorporation.…”