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| Zihlmann, Urs; Tschachtli, Ruedi; Oberholzer, Hans-Rudolf; van der Heijden, Marcel; Oehl, Fritz. |
| The effect of integrated and organic farming on crop yield as well as on environmental and economic performance was investigated in a large scale field experiment near Lucerne (Switzerland), which was running for 18 years. Crop yield in organically managed fields was, depending on crop species, between 3% and 36% lower compared to conventionally managed fields. Only slight variations in crop quality were observed between the farming systems, probably as a result of the high nitrogen mineralization potential of the soils in this experiment. Our results show that organic farming on fertile soils provides good yields and is – under the given Swiss agricultural policy – economically beneficial. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop husbandry. |
| Ano: 2011 |
URL: http://orgprints.org/17594/3/Oehl_17594.pdf |
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| Fried, Padruot M.; Zihlmann, Urs; Strasser, Fredi; Tschachtli, Ruedi; Ammann, Helmut; Dubois, David. |
| Long-term trials are necessary not only to judge agronomic and ecological indicators when studying organic farming, but also to analyze and describe economic parameters. From 1997-2002, an organic arable farming system (Bio) was compared with two Integrated farming systems (IP intensive and IP extensive) on 6 plots in a 6-year crop rotation at Burgrain near Lucerne, Switzerland. The 6 plots were subdivided into 3 subplots of 0.65 ha each. In the organic system, the input of fertilizer and pesticides was substantially reduced, which resulted in a yield reduction of 19% over all 4 arable crops and of 14% if the temporary lays are included. Nevertheless, the organic system showed an excellent net profit, mainly due to the higher prices paid to the farmers for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4352/4/Fried_etal_4p_revised%2Ded.doc |
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