The surface properties of humic acids extracted from chernozem and grey-brown podzolic soils
|
|
||||||||
PDF 432.76 KB
|
|||||||||
| Authors: | M. Flis-Bujak1, A. Księżopolska2, J. Stawiński3, R. Turski1 1Institute of Soil Science and Environment Management, University of Agriculture Kr. Leszczyńskiego 7, 20-069 Lublin, Poland 2Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4,20-236 Lublin, Poland 3Institute of Ągrophysics, Polish Academy of Sciences, Doświadczalna 4,20-236 Lublin, Poland |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Abstract : | Abstract. The authors characterized selected surface properties of humic acid preparations extracted from three types of Polish soils (degraded chermozem developed from loess, grey-brown podzolic soil developed from loam, grey-brown podzolic soil developed from loess). Based on the isotherms of water vapour adsorption, the specific surface area and the molar energy of adsorption were calculated; the effect of agrotechnical measures in multi-year cultivation on the surface properties of the humic acids under study was determined, and theeffect of contamination of humic acids on the form of the isotherms of water vapour adsorption was analyzed. |
||||||||
| Keywords : | adsorption, specific surface area, molar energy of adsorption | ||||||||
| Language : | English | ||||||||
