Properties of humic acids of soil under different management regimes
2009
Debska, B., University of Technology and Life Sciences, Bydgoszcz (Poland) | Szombathova, N., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Banach-Szott, M., University of Technology and Life Sciences, Bydgoszcz (Poland)
The aim of the present paper was to determine the elemental composition, hydrophilic and hydrophobic properties and polydispersity of humic acids of soils which differ in the farming method and the management regimes applied. The research involved forest and agricultural soil samples. Humic acids isolated with a commonly-applied Schnitzer method were exposed to the following analyses: elemental composition, division into hydrophilic and hydrophobic as well as low- and high-molecular fractions with chromatographic methods. The present results, confirmed by the cluster analysis, showed that the basic factor conditioning the properties of humic acids is the soil type, but also one can disregard neither the soil management method nor the agricultural practices applied.
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