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| Niggli, U.; Fließbach, A.; Hepperly, P.; Scialabba, N.. |
| Is low greenhouse gas emission (GHG) agriculture possible? Is it, in fact, desirable? In seeking answers to these two basic but extremely relevant questions, this study examines current farming practices, and incorporates scientific databases from longterm field experiments as case studies for low GHG agriculture. Further, the study examines the changes that will be needed for low greenhouse gas agriculture systems to become a reality. It also elucidates the adaptive capacity of agro-ecological farming system approaches, using organic system case studies from the scientific literature. Each year, agriculture emits 10 to 12 percent of the total estimated GHG emissions, some 5.1 to 6.1 Gt CO2 equivalents per year. Smith, et al. (2007) and Bellarby, et al.... |
| Tipo: Book |
Palavras-chave: Environmental aspects; Air and water emissions. |
| Ano: 2009 |
URL: http://orgprints.org/15690/1/niggli-etal-2009-lowgreenhouse.pdf |
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| Birkhofer, K.; Fließbach, A.; Wise, D.H.; Scheu, S.. |
| 1 Agricultural intensification not only alters the structure of arthropod communities, but also may affect biotic interactions by altering the availability of basal resources. We analyzed variations in stable isotope ratios (15N/14N and 13C/12C) of fertilizers, plants, prey and generalist predators in organic and conventional farming systems in a long-term agricultural experiment [DOK trial (bioDynamic, bioOrganic, Konventionell)]. Two basal resources with pronounced differences in carbon isotope signatures, wheat litter (C3 plant) and maize litter (C4 plant), were used to uncover differences in food web properties between the two farming systems (conventional versus organic). 2 Predators incorporated significantly higher proportions of carbon from wheat... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Biodiversity and ecosystem services. |
| Ano: 2011 |
URL: http://orgprints.org/21781/1/birkhofer-etal-2011-AgrForestEntomol-Vol13-p197-204_abstract.pdf |
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| Niggli, U.; Schmid, O.; Stolze, M.; Sanders, J.; Schader, C.; Fließbach, A.; Mäder, P.; Klocke, P.; Wyss, G.; Balmer, O.; Pfiffner, L.; Wyss, E.. |
| Zusammenfassuung: In diesem Bericht werden die wissenschaftlichen Ergebnisse nationaler und internationaler Studien zu den gesellschaftlichen Leistungen des Biolandbaus zusammengefasst. Als Referenzen werden dabei sowohl die konventionelle wie auch die integrierte Landwirtschaft herangezogen. Es ist den Autoren bewusst, dass alle Landwirtschaftsmethoden in der Schweiz und im Ausland eine grosse Streubreite aufweisen, da der Einfluss der regionalen sozioökonomischen Rahmenbedingungen, der Standortfaktoren, der Betriebsleiter und der unterschiedlichen staatlichen und privaten Regulierungen gross ist. Trotzdem ergeben sich für die verschiedenen Landwirtschaftsmethoden klare Unterschiede, die bei den agrarpolitischen Massnahmen berücksichtigt werden... |
| Tipo: Report |
Palavras-chave: Environmental aspects; Biodiversity and ecosystem services; Air and water emissions. |
| Ano: 2009 |
URL: http://orgprints.org/15397/2/niggli%2Detal%2D2009%2Dgesllschaftl%2Dleistungen.pdf |
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| Palmer, M.; Cooper, J.M; Fließbach, A.; Melville, J.; Turnbull, C.; Shotton, P.; Leifert, C.. |
| A ryegrass bioassay was conducted to investigate the effect of soil management history on nitrogen mineralisation from composted manure and pelleted poultry manure. Soils were used from 2 field experiments comparing conventional and organic/low input management systems. When composted manure was added, soils which had received high rates of composted FYM under biodynamic management released a greater amount of nitrogen for plant uptake than those with a history of mineral or fresh manure fertilisation, suggesting that biological preconditioning may result in greater efficiency of composted FYM as a nitrogen source for plants. “Native” N mineralisation was found to be related to total soil N content. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover. |
| Ano: 2007 |
URL: http://orgprints.org/10398/1/palmer-etal-2007-soils_management_history.pdf |
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| Mäder, P.; Hahn, D.; Dubois, D.; Gunst, L.; Alföldi, T.; Bergmann, H.; Oehme, M.; Amadô, R.; Schneider, H.; Graf, U.; Velimirov, A.; Fließbach, A.; Niggli, U.. |
| Consumers have become more aware of healthy and safe food produced with low environmental impact. Organic agriculture is of particular interest in this respect, as manifested by 5.768 million hectares managed pursuant to Council Regulation (EEC) 2092/91 in Europe. However, there can be a considerable risk that the avoidance of chemical inputs in organic farming will result in poor food quality. Here the results of a study on the quality of wheat (Triticum aestivum L.) grown in a 21 year agrosystem comparison between organic and conventional farming in central Europe are reported. Wheat was grown in a ley (grass/clover) rotation. The 71% lower addition of plant-available nitrogen and the reduced input of other means of production to the organic field plots... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general Cereals; Pulses and oilseeds. |
| Ano: 2007 |
URL: http://orgprints.org/13316/1/Maeder_etal_2007_J_Sci_Food_Agr.pdf |
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