TY - SER AU - Silva,M.R.J. AU - Pereira,S.C. AU - Rodrigues,F.A. AU - Zanão Júnior,L.A. AU - Fontes,R.L.F. AU - Oliveira,M.G.A. TI - Silicon and manganese on the activity of enzymes involved in rice resistance against brown spot KW - ARROZ KW - MANCHA FOLIAR KW - NUTRIÇÃO MINERAL ER -