Preliminary Data Regarding Trace Elements in Soils from F?lticeni Apple Orchards (Romania)

摘要

Our study regards the contents of trace elements in the apple tree cultivated soils within the area of the F?lticeni orchards, located in the NE of Romania. A total of 19 soil samples were analysed , from which 9 (FS1 to FS9) by EDXRF for determining the contents of As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn as well as the pH. The other 10 samples (FMR1 – FMR10) were sampled from the area of the Research and Production Centre for Fruit-Growing from F?lticeni (RPCFG) and were analysed by AAS for determining the Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn contents. Also, for the samples FMR1 to FMR10 the pH was determined in aqueous solution and KCl solution, as well as the TDS and % CaCO3. The results have shown concentrations of As, Cu, Pb and Ni that exceed the maximum values admitted by Romanian legislation. The pH of the samples from RPCFG indicates an acid environment, which together with the high contents in some trace elements can affect the bioavailability, generating a risk of accumulating these elements in the apple fruits.