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| Lin, H. C.; Chmelíková, Lucie; Huber, Julia; Hülsbergen, Kurt-Jürgen. |
| Im Versuchsbetrieb Scheyern (Süddeutschland) wurde in Feldexperimenten die Energienutzungseffizienz (EUE) ökologischer Anbausysteme analysiert. Die EUE wurde für verschiedene Systemebenen - die Fruchtarten, die Fruchtfolge sowie Agroforstsysteme (AFS) bestimmt. Die Agroforstsysteme bestehen aus Baumreihen mit schnellwachsenden Gehölzen zur energetischen Nutzung sowie einer Fruchtfolge zur Nahrungserzeugung. Die EUE entspricht dem Verhältnis von Energieoutput zum Energieinput. Der Energieinput umfasst den Einsatz fossiler Energie, der Energieoutput den Brennwert der Ernteprodukte. Die EUE von Weizen wird stark von der Vorfrucht beeinflusst; sie beträgt nach Kartoffeln 10,1, nach Luzerne-Kleegras 19,5, im AFS 9,7 (nach Kartoffeln) und 18,8 (nach... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects. |
| Ano: 2013 |
URL: http://orgprints.org/21660/1/21660_LIn.pdf |
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| Chmelíková, Lucie; Schmid, Harald; Hejcman, Michal; Hülsbergen, Kurt-Jürgen. |
| Alfalfa (Medicago sativa L.) belongs to the significant part of legume pastures and is high-quality forage. In organic farming, it plays a pivotal role in contribution to a soil nitrogen balance. The aim of this study was to evaluate the effect of the site and the time on the root diameter, number of nodules and yield of alfalfa in field experiments of organic farming. On six areas with different soil texture (clay content: 12-32%) in south Bavaria, Germany, plants were sampled with the monolith method. In May, July and August 2011 the yield, the root diameter and the number of nodules were evaluated. The yield amounted to 8-12 t ha-1. The root diameter increased, the number of nodules decreased with time. The significant differences were investigated in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2013 |
URL: http://orgprints.org/21658/1/21658_chemilkova.pdf |
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| Paulsen, Hans Marten; Schmid, Harald; Beisecker, R.; Schröder, K.; Warnecke, Sylvia; Hinterstoißer, P.; Wagner, K.; Schüler, Maximilian; Schulz, Franz; Ambros, C.; Koopmann, Regine; March, Solveig; Brinkmann, Jan; Chmelíková, Lucie; Anke, S.; Seith, T.; Becker, Heiko; von Stieglitz, I.; Sanders, J.; Hülsbergen, Kurt-Jürgen. |
| In a network of organic and conventional pilot farms with dairy and/or arable production in Germany (www.pilotbetriebe.de) aspects of sustainability, resource efficiency, animal health and welfare and economic aspects are analysed. This is based on on-farm assessments and on whole farm modelling. In the first interdisciplinary workshops on the project farms results were presented and scenarios were developed in a participatory approach by scientists, consultants and farmers to improve N, P and land use efficiency as well as dairy health and welfare. Typical areas of action to optimize sustainability in these aspects were identified on the farms, e.g., complete accounting of manure N (N balance), enrichment of crop rotations with clover grass and cover... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Policy environments and social economy Education; Extension and communication Farm nutrient management. |
| Ano: 2017 |
URL: http://orgprints.org/31829/1/Windows%207%20printed%20document-2.pdf |
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