Autor : Leandro de Almeida Resende, Emater-MG; Jose Aires Ventura, Incaper; Ranusa Coffler, Incaper; Carlos Alberto Sangali de Mattos, Incaper; Grazieli Forza Roldi, Incaper; Joyce Adriana Froza, Esalq/USP; João Roberto Spotti Lopes, Esalq/USP; Simon Luke Elliot, UFV.
