engleski

Total and plant available micronutrients in acidic and calcareous soils in Croatia

The 40 soil samples of continental Croatia were analysed on chemical properties and heavy metal extracted by aqua regia, EDTA and HCl with aim to compare extraction methods and to determine impact of soil pH on heavy metals availability. The highest total content was determined for Fe, and the lowest for Cu and Ni regardless to soil pH. Soil pH have significant impact on available fraction of analysed micronutrients and significantly lower available fraction of Fe and Mn was determined in calcareous soils. The soil properties as humus content and pH could be sufficient for plant available micronutrients prediction using regression formulas, but such models are more appropriate for acid soils comparing to calacreous, for Fe and Mn comparing to Zn, Cu and Ni and for EDTA extracted comparing to HCl extracted fraction of micronutrients.

micronutrients ; heavy metals ; EDTA ; acid soils ; calcareous soils

Rad je prezentiran na skupu VII. Alps-Adria Scientific Workshop, održanom od 28.04-.02.05.2008., Stara Lesna, Slovačka.