Properties of humus in soils of different management regimes
2009
Gonet, S. S., Nicolaus Copernicus University, Toruń (Poland) | Debska, B., University of Technology and Life Sciences, Bydgoszcz (Poland) | Dziamski, A., University of Technology and Life Sciences, Bydgoszcz (Poland) | Banach-szott, M., University of Technology and Life Sciences, Bydgoszcz (Poland) | Zaujec, A., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Szombathova, N., Slovak Univ. of Agriculture in Nitra (Slovak Republic)
The objective of the study was to evaluate differences occurring in the soil environment between agricultural, meadow and forest soil management. Soil samples were collected from spruce and oak monocultures as well as meadow of the Mlyňany arboretum (Slovakia) and near arable sites and analyzed for the total organic carbon (TOC), total nitrogen (Nt) and phosphorus (P) content and fractional composition of organic matter. Extracted humic acids were analyzed for the elemental composition, UV- VIS, FT-IR spectra and thermal analysis. It was shown that different use of soils affects the content of carbon and nitrogen as well as fractional composition of organic matter. Forest soils had higher concentrations of TOC and Nt as compared with meadow and arable soils. Humic acids of forest and meadow soils were characterized by higher values of the O/H and O/C ratios as well as higher values of absorbance coefficients in the UV-VIS region than humic acids of arable soil.
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