Relationship among soil mineral elements (NH4OAc, EDTA and total content), chemical soil properties and mineral element uptake by wild Digitalis obscura plants in forest soils
In the present study, we investigated the relationships among soil chemical properties (pH, Total carbonates and electrical conductivity), Total contents, EDTA-extractable and NH 4 OAc-extractable concentrations of K, Ca, Mg, Fe, Mn, Zn, Cu and Na in ten soils where D. obscura grew. Furthermore, relationships between soil mineral elements (Total, EDTA-extractable and NH 4 OAc-extractable) and their contents in the leaves of this plant were determined. Significant negative correlations were found between Carbonates with K and Mn, as well as pH with Fe. Only total Mg in soil significantly correlated with the extradants used. With regard to the mineral content in plant, Ca Mg, Fe and Mn were significantly correlated with their content in soil.