Contains of adsorptive kations of chernozems in area of Tikves
1998
Mitkova, T. | Mitrikeski, J. (Univerzitet "Sv. Kiril i Metodij" Zemjodelski Fakultet, Skopje (Makedonija))
The researches of exchangeable cations of chernozems have shown that the biggest value of cation exchangeable capacity is at the horizon A (average 22.98 eqv.mmol/100 soil).The biggest contents of humus and clay is at this horizon.In the adsorptive complex the biggest value has the exchangeable cations on the priority of Ca++ (average 75 %), then Mg++ (20 %), K+ (4 %) and Na + under 1 % of cation exchangeable capacity.Domination of Ca++ and Mg++ in the absortive complex of chernozems is as a result of the biggest contains with CaCO3 in supstratum.At the A horizon (noncarbonate chernozems) and in the part of AC horizon (profile 6) there is quantity of acid ions.Their contains are 9-10 % of cation exchangeble capasity.
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