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| Berner, Alfred; Frei, Robert; Mäder, Paul. |
| In a long-term field trial (November 2002-2011), located in Frick near Basle (Switzerland), the influence of reduced tillage on soil fertility and yield is studied in a crop rotation under organic farming conditions. Here, we describe the field experiment and present results of the first year. The three factors examined, soil tillage, manure type and biodynamic preparations are implemented in a fully factorised experimental setup. The experimental field manifested a high homogeneity for the parameters pH, soil organic carbon (Corg), dehydrogenase activity and microbial biomass. Wheat yield in the first experimental year was 16% higher in ploughed plots than in the plots with reduced tillage (p < 0.001). Plots fertilised with slurry manifested 5 % (p... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality. |
| Ano: 2005 |
URL: http://orgprints.org/3569/1/3569.pdf |
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| Berner, Alfred; Frei, Robert; Mäder, Paul. |
| In den ersten drei Jahren hat der seit 2002 laufende Langzeitversuch Frick (Schweiz) bereits viele spannende Ergebnisse zu Tage gefördert. Unerwartet war, dass Weizen, der in Parzellen gewachsen war, welche lediglich im Versuchsjahr mit biologisch-dynamischen Präparaten behandelt wurden, weniger Fusarientoxine enthielt und mit den bildschaffenden Methoden klar von nicht behandelten Weizenproben unterschieden werden konnte. Sehr bedeutsam sind auch die Ergebnisse zur Bodenfruchtbarkeit: Reduziert bearbeitete Böden waren schon nach kurzer Zeit belebter, wiesen etwas mehr Humus auf und auch die Symbiosepilze fühlten sich dort wohler als in gepflügten Böden. Die Erträge reagierten je nach Kultur positiv oder negativ auf reduzierte Bodenbearbeitung.... |
| Tipo: Journal paper |
Palavras-chave: Soil tillage; Composting and manuring. |
| Ano: 2006 |
URL: http://orgprints.org/9269/1/berner-etal-2006-langzeitversuch.pdf |
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| Berner, Alfred; Frei, Robert; Dierauer, Hans-Ulrich; Vogelgsang, Susanne; Mäder, Paul. |
| In a recently started long-term field trial (2002-2011), located in Frick (1000 mm mean annual precipi-tation) near Basle (Switzerland), the effect of reduced tillage on crop yield, weed infestation, and oc-currence of toxigenic fusaria was studied on a heavy soil (45% clay) in a crop rotation under organic farming conditions. Here, we present results of the first two experimental years (2003-2004), which are considered as the conversion period. Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow). In the following year, sunflower yield was enhanced by 5% (p = 0.06) in reduced tilled plots. Reduced tilled plots manifested a higher weed infestation, in particular with Convolvulus... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Weed management; Soil tillage. |
| Ano: 2005 |
URL: http://orgprints.org/4216/1/berner_etal_2005_effects_reduced_tillage_final.doc |
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