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| Rahmann, Gerold; Paulsen, Hans-Marten; Hötker, Hermann; Jeromin, Knut; Schrader, Stefan; Haneklaus, Silvia; Schnug, Ewald. |
| Although it is the aim of organic farming to increase biodiversity, there is little knowledge about the impact of organic farming on birds. From 2001 to 2003, the number of breeding birds was recorded annually on the organic experimental farm of the Institute of Organic Farming (600 ha), and on adjacent conventional and organic farms (60 ha and 40 ha) in Northern Germany. The number of skylark (Alauda arvensis) territories increased considerably after the conversion from conventional to organic farming on the premises of the Institute. Their number remained unvaried on the conventional farm. The highest density of skylark territories was found on the farm which has been under organic management for many years. The number of yellowhammer (Emberiza... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services. |
| Ano: 2006 |
URL: http://orgprints.org/9307/1/AAB06_biodiversity.pdf |
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| Schnug, Ewald; Haneklaus, Silvia; Rahmann, Gerold; Paulsen, Hans-Marten; Walker, Robin. |
| Conventional agriculture is associated with problems such as pesticide residues in soils and plants, contamination of meat with antibiotics and hormones, and eutrophication of water bodies. An alternative for consumers is the consumption of products from organic farming. Organic management is possible on arable farms, although livestock is often a crucial part of the system as manure and slurry can contribute significantly to maintaining closed nutrient cycles. Independent of the management system, it is not possible to exclude nutrient losses to the environment on agricultural fields, but acceptable loads need to be defined. Organic farming can contribute to environmental protection and nature conservation in many ways, for instance by improving soil... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; "Organics" in general. |
| Ano: 2006 |
URL: http://orgprints.org/9311/1/ABB06_Stewardship.pdf |
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| Hagel, Ingo; Haneklaus, Silvia; Schnug, Ewald. |
| Schwefelmangel führt bei Weizen zu erheblich festeren Teigen. Daher kollidierte in den 80er Jahren unvorhergesehen das Zuchtziel einer Steigerung der Backqualität durch eine Straffung der Proteinstruktur mit einer exogen bewirkten zusätzlichen Verfestigung der Proteinmatrix infolge drastisch reduzierter Schwefeleinträge in die Ökosysteme. Eine S-Düngung führte dann auch zu einer Steigerung des Backvolumens. Und zwar nicht weil die Kleber der modernen Weizensorten zu weich, sondern weil sie durch die Züchtung bereits zu stark verfestigt waren und den neuen Umweltverhältnissen nicht mehr angepasst waren. Die hohe technologische Qua-lität dieser Sorten kann daher als Resultat eines züchterisch unbewusst induzierten S-Mangels angesehen werden, denn sie weisen... |
| Tipo: Journal paper |
Palavras-chave: Breeding; Genetics and propagation Food security; Food quality and human health. |
| Ano: 2005 |
URL: http://orgprints.org/6131/1/Hagel_et_al_2005.pdf |
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