02300naa a2200349 a 450000100080000000500110000800800410001902400530006010000170011324501270013026000090025752013150026665000110158165000110159265000130160365000190161665000090163565000200164465300320166465300200169670000160171670000210173270000170175370000220177070000220179270000200181470000130183470000200184770000190186770000140188677300500190021033512019-04-27       2018    bl uuuu     u00u1 u    #d7 ahttp://dx.doi.org/10.1590/1678-4499.20170332DOI1 aBRUNETTO, G.  aCopper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil.h[electronic resource]  c2018  aThe present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 ? 0.025 m, 0.025 ?0.050 m, 0.05 ? 0.10 m, 0.10 ? 0.15 m, 0.15 ? 0.20 m and 0.20 ? 0.40 m depth) were collected in two apple orchards (8 years old and 18 years old), and in a native pasture area adjacent to the orchards. The soil was subjected to analysis of physical and chemical properties and to chemical fractionation of Cu and Zn. The fractions of soluble, exchangeable, organic, residual and total Cu and Zn accumulated in the topsoil (0.0 ? 0.025 m) of the orchards, being higher in the orchard cultivated for 18 years. Most Cu, especially in the topsoil of the 18 years old orchard, accumulated in the less stable organic fraction, which can potentiate toxicity to plants and transfer Cu e Zn to ground water. In deeper layers, Cu was also distributed in the residual and mineral fractions, which are more stable. Most Zn in the soil of the apple orchards was distributed in the mineral and residual fractions, which have low mobility and low potential toxicity to plants. Key words: Malus domestica, trace elements, toxicity, environmental contamination.  aApples  aCopper  aToxicity  aTrace elements  aZinc  aMalus Domestica  aEnvironmental contamination  aSouthern Brazil1 aBENEDET, L.1 aAMBROSINI, V. G.1 aCOMIN, J. J.1 aMELO, G. W. B. de1 aSANTOS, M. A. dos1 aLOURENZI, C. R.1 aLOSS, A.1 aBELLI FILHO, P.1 aSCHMITT, D. E.1 aCOUTO, R.  tBragantiagv. 77, n. 2, Apr./June 2018. Epub.