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Innovation „Unbeheiztes Wintergemüse“: ökologisch-ökonomische Analyse im Geschützen Anbau und im Freiland Organic Eprints
Theurl, Michaela Clarissa; Bartel-Kratochvil, Ruth.
Österreichische Winterproduktion ist mit hohem Ressourceneinsatz und entsprechenden ökologischen Kosten verbunden, die Nachfrage nach frischen Salaten jedoch auch im Winter steigend. Der Anbauvon Gemüsekulturen ohne Beheizung im Winter stellt vor allem für kleine und mittlere Betriebe eine wirtschaftlich rentable Alternative zu herkömmlichen energieintensiven Produktionssystemen dar. Vor allem für Biobetriebe bietet dieses innovative Verfahren zusätzliche Wertschöpfung durch die Verlängerung der Anbausaison und Nischenprodukte für gesundheits- und umweltbewusste KonsumentInnen. Wir untersuchen die ökologische und ökonomische Relevanz von Winterkulturen im Vergleich zu traditionellen Furchtgemüse im Geschützen Anbau und im Freiland. Aufgrund der zum...
Tipo: Conference paper, poster, etc. Palavras-chave: Vegetables Farm economics Markets and trade Crop combinations and interactions Greenhouses and coverings Air and water emissions Education; Extension and communication.
Ano: 2019 URL: http://orgprints.org/36211/1/Beitrag_287_final_a.pdf
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Comparison of the environmental performance of different treatment scenarios for the main phosphorus recycling sources Organic Eprints
Hörtenhuber, Stefan Josef; Theurl, Michaela Clarissa; Möller, Kurt.
Efficient phosphorus (P) recycling from rural and urban areas is becoming an increasing issue due to the scarcity of natural P deposits. Based on a life cycle assessment (LCA), we analyzed the environmental performance of 17 different P supply and recycling approaches from urban wastes, biosolids and slaughterhouse wastes compared with the two conventional inorganic fertilizers phosphate rock and triple superphosphate. The results show that many recycled P fertilizers (RPFs; e.g., digestates from urban organic wastes, biosolids and their ashes, meat and bone meal (MBM) and its recycling products) are competitive in terms of LCA results compared with conventional P fertilizers. For each of the P recycling sources, one or more treatment options were...
Tipo: Journal paper Palavras-chave: Composting and manuring; Air and water emissions; Evaluation of inputs.
Ano: 2018 URL: http://orgprints.org/32914/1/H%C3%B6rtenhuber2018-comparison_of_the_environmental_performance_of_different_treatment_scenarios_for_the_main_phosphorus_recycling_sources.pdf
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Energieeffiziente Bodenbearbeitung im biologischen Ackerbau Organic Eprints
Theurl, Michaela Clarissa; Hörtenhuber, Stefan Josef; Surböck, Andreas.
Soil management techniques require both in conventional and organic agricultural systems high amounts of energy which are related to the emissions of greenhouse gases and climate change as well as an increasing dependence on fossil fuels. This paper examines ecological and economic effects of reduced tillage techniques and ploughing over two years with the crops winter wheat and sugar beet. The tillage trial was carried out on a Chernozem soil in a semi-arid region in Austria. The results show 31 % lower energy consumption for reduced tillage over both crops. Interestingly, the ploughing variant resulted in 12 % higher sugar beet yield, but showed 12 % lower wheat yields per hectare. An economic evaluation of both variants did not identify differences over...
Tipo: Conference paper, poster, etc. Palavras-chave: Farm economics Technology assessment Cereals; Pulses and oilseeds Soil tillage Air and water emissions Buildings and machinery Root crops.
Ano: 2015 URL: http://orgprints.org/27140/1/27140_theurl.pdf
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