The content and ratio of adsorbed Ca and Mg in the serpentinite soils of Serbia
2006
Djordjevic, A.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Maksimovic, S.(Institute of Soil Science, Belgrade (Serbia)) | Jakovljevic, M.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Cupac, S.(Faculty of Agriculture, Belgrade - Zemun (Serbia)) | Tomic, Z.(Faculty of Agriculture, Belgrade - Zemun (Serbia))
The contents of adsorbed Ca and Mg and their ratio (Ca/Mg) were researched in the serpentinite rankers of Serbia. The samples were taken from seven wider locations (Zlatibor, Kopaonik, Miroc, Maljen, Bukovi, Suvobor and Bubanj Potok) in the altitudinal belt between 100 and 1700 m. Altogether 32 soil profiles were opened and 47 soil samples were analysed. The percentages of adsorbed Ca and Mg were determined by the method of the Atomic Absorption Spectrophotometry, after extraction with NH4-acetate. The study results show that the content of adsorbed Mg-ions in almost all analysed samples was higher than the percentage of adsorbed Ca-ions, so their ratio (Ca/Mg) is less than 1. This Ca/Mg ratio has an unfavourable impact on the plant development and it was concluded that this is one of the basic reasons of the low productive capacity of the serpentinite rankers in Serbia.
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