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| Berner, Alfred; Fliessbach, Andreas; Nietlisbach, Bruno; Mäder, Paul. |
| In a long-term field trial recently launched (2002-2011), located in Frick (878 mm mean annual precipitation) near Basle, Switzerland, the effect of reduced tillage on soil fertility indicators and crop yield was studied in a heavy soil (45% clay) in a crop rotation under organic farming conditions. We present the results of soil analyses after three cropping years (2002-2005). Soil organic carbon (Corg) increased over that period by 7.4% (+1.5 g Corg kg-1 soil) in the 0-10 cm soil layer in the reduced tillage plots, while it remained constant in the ploughed plots. Soil microbial carbon (Cmic) and dehydrogenase activity (DHA, TTC-reduction) were 28% higher in reduced-tillage plots in this soil layer. Biological soil quality as calculated by Cmic to Corg... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Soil quality; Soil tillage. |
| Ano: 2008 |
URL: http://orgprints.org/12303/1/Berner_12303_ed.doc |
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