CO2 assimilation oxidative stress and biomass yield of Massai grass (Panicum maximum cv. Massai) as affected by sulfur and cadmium interaction: a pre-requisite study for agromining - Lavres Junior, José; Rabelo, F. H. S; Rossi, Monica Lanzoni; Martinelli, Adriana Pinheiro; Azevedo, R. A (Agriculture and Climate Change, 2017)