Silva, Samuel de Assisde Souza Lima, Juliao Soaresde Souza, Gustavo Soaresde Oliveira, Rone BatistaXavier, Alexandre Candido2014-05-202014-05-202010-01-01Revista Ciência Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 41, n. 1, p. 9-17, 2010.0045-6888http://hdl.handle.net/11449/39890The objective of this study was to analyze, using the geoestatistic and a system of classification fuzzy, the fertility of an experimental area with base in chemical attributes of the soil and its relationship with the productivity of the conilon coffee. The study was accomplished in the experimental farm of the INCAPER - ES. The soil samples were collected in the depth of 0 - 0.2 m, being analyzed the attributes: matches, potassium, calcium and magnesium, aluminum, sum of bases, cation exchange capacity (pH 7), and saturation percentage. The data were submitted to a descriptive, exploratory, and geostatistical analysis. A system of fuzzy classification was applied using the attributes described to infer about the fertility of the soil and its relationship with the productivity of the culture. The fertility possibility presented positive spatial relationship with the productivity of the culture, with higher values of this where the possibility of fertile soil is superior.9-17porCoffea canephora Pierre x FroenherFertility of the soilCoffee growingGeostatisticsTrabalho apresentado em eventoWOS:000276777700002Acesso aberto