Two field experiments were conducted on two experimental EPAMIG Farms (Minas Gerias State), in order to evaluate the nutritional coffee status by the nutritional balance index (NBI) supplied by DRIS in response to potassium fertilization. The experimental design was a split plot scheme of randomized blocks, carried out on a Red Latosol distroferric (RLdf) of São Sebastião do Paraíso and a Yellow Red Latosol distrofic (YRLd) of Patrocínio. Three K sources were applied in the plots: potassium chloride (KCl), potassium […]