Charge characteristics of Orthic luvisol as related to its mechanical and chemical properties
2001
Chlpik, J. (Slovenska Polnohospodarska Univ., Nitra (Slovak Republic))
In Orthic Luvisol typical of a locality called Choca (Zlate Moravce District) parameters of texture composition, chemical characteristics, humus content and quality and charge parameters (ZPC, delta p, psi o, delta pH) were studied. According to the content of particles small that 0.01 mm, humus horizon (Au-umbric horizon) and parent material were loamy (38.47% and 37.18%, respectively), and illuvial luvic horizon (Bt) was clay-loamy (48.52%) pH (KCl) up to a 0.65 m depth was acid and active pH(H2O) was neutral, pH of parent material was slightly alkalic. Organic carbon content was 1.91% for Au-horizon and 0.19% and 0.55% for subsoil horizons, respectively. A higher content of CaCO3 was found only in parent material. The highest values of ZPC and delta p were determined for parent material (7.90 of pH units, or + 3.65 cmol (p+)/kg, where organic carbon content was low and CaCO3 content was high. The maximum values of psi o were in humus horizon (Au) 35.99 mV. delta pH values have confirmed that the soil studied contains sorbents with variable parameters
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