Changes of soil organic matter under minimum tillage in different soil-climatic conditions

Olga Svobodová, Jana Jančíková, Jan Horáček, Peter Liebhard and Věra Čechová
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Olga Svobodová: Department of Applied Plant Biotechnologies, Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
Jana Jančíková: Department of Applied Plant Biotechnologies, Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
Jan Horáček: Department of Applied Plant Biotechnologies, Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
Peter Liebhard: Institute of Agronomy and Plant Breeding, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
Věra Čechová: Department of Applied Plant Biotechnologies, Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic

Soil and Water Research, 2010, vol. 5, issue 4, 146-152

Abstract: Quantitative and qualitative soil organic matter properties were observed in a specific large area experiment (Chernozem - Gross Enzersdorf, Austria) and in a medium-term field experiment (Cambisol - Studena, Czech Republic). Two technologies - minimum tillage (MT) and conventional tillage (CT) - were compared by means of the determination of quantitative and qualitative soil organic matter parameters of the soil samples in the years 2004-2005. Cambisol showed higher values of quantitative soil organic matter parameters in MT compared to those in CT over the whole soil profile. For Cambisol, the qualitative parameters were almost comparable for both technologies. Chernozem showed more favourable values of the quantitative parameters in the surface layer in MT, however, the values had rather a contrary trend in deeper soil layers. CT showed slightly more favourable values of the qualitative soil organic matter parameters in Chernozem. It can be said that Chernozem organic matter reaction to tillage technology changes is slower and of minor rate in comparison with that of Cambisol organic matter. The results of quantitative and qualitative parameters do not conform with the generally recognised values for the Chernozem soil type.

Keywords: Cambisol; Chernozem; humus content and quality; humus fractionation; minimum tillage (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:5:y:2010:i:4:id:1-2010-swr

DOI: 10.17221/1/2010-SWR

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