TY - SER AU - Bortolon,L. AU - Ernani,P.R. AU - Bortolon,E.S.O. AU - Gianello,C. AU - Almeida,R.G.O.de AU - Welter,S. AU - Rogeri,D.A. TI - Degree of phosphorus saturation threshold for minimizing P losses by runoff in cropland soils of southern Brazil KW - ANÁLISE DO SOLO KW - FÓSFORO KW - ÁGUA KW - QUALIDADE ER -