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| Registros recuperados: 73 | |
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| Løes, Anne-Kristin; Øgaard, Anne Falk. |
| On five long-term organic dairy farms aiming at self-sufficiency with nutrients, soil concentrations of ammonium-acetate lactate extractable potassium (K-AL) and acid-soluble K was measured twice in topsoil (0-20 cm) and subsoil (20-40 cm) over periods of 6-14 years. Organic management had occurred for >9 years at the second sampling. On average there were most probably field level K-deficits. Even so, topsoil K-AL concentrations were medium high (65-155 mg K kg–1 soil), and did not decrease during the study period. However, for three farms, topsoil K-AL was approaching a minimum level determined by soil texture, where further decrease is slow. Subsoil K-AL concentrations were generally low (<65). The soils were mostly light-textured, and reserves of... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover Farm nutrient management Recycling; Balancing and resource management. |
| Ano: 2003 |
URL: http://orgprints.org/5244/1/jas_010_(loesogaard).pdf |
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| Schader, Christian; Müller, Adrian; El-Hage Scialabba, Nadia; Hecht, Judith; Isensee, Anne; Erb, Karl-Heinz; Smith, Pete; Makkar, Harinder P.S.; Klocke, Peter; Leiber, Florian; Schwegler, Patrizia; Stolze, Matthias; Niggli, Urs. |
| Increasing efficiency in livestock production and reducing the share of animal products in human consumption are two strategies to curb the adverse environmental impacts of the livestock sector. Here,we explore the roomfor sustainable livestock production by modelling the impacts and constraints of a third strategy in which livestock feed components that compete with direct human food crop production are reduced. Thus, in the outmost scenario, animals are fed only from grassland and by-products from food production. We show that this strategy could provide sufficient food (equal amounts of human-digestible energy and a similar protein/calorie ratio as in the reference scenario for 2050) and reduce environmental impacts comparedwith the reference scenario... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth Recycling; Balancing and resource management. |
| Ano: 2015 |
URL: http://orgprints.org/29549/1/Schader-etal-2015-Food-Competing-Feedstuffs-JRS-p1-12.pdf |
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| Holmqvist, A.; Møller, J.; Dalsgaard, A.. |
| Thermophilic composting of faecal matter from urine diverting toilets can effectively reduce the numbers of faecal bacterial indicators and pathogen. Already at 50C, the numbers of pathogens, including the Salmonella phage, and indicator organisms analysed were effectively reduced within a few days of exposure. Although the numbers of enterococci were reduced, they were continuous isolated as purple colonies on Slanetz and Bartleys agar after prolonged exposure at all temperature levels studied. This indicates that certain micro-organisms present in the composted faecal material, Enterococcus spp. or micro-organisms resembling enterococci on the agar medium, can survive and multiply even at 60C. These findings question the use of enterococci as faecal... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management. |
| Ano: 2003 |
URL: http://orgprints.org/2087/1/HMDPoster1.pdf |
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| Schäfer, Winfried. |
| Agrifood Research Finland completed a feasibility study concerning on-farm dry fermentation. The study included the documentation of a prototype plant of a dairy farm at Järna about 50 km south of Stockholm. Interesting features of the plant are amongst others the recycling of a second-hand smokestack as reactor material, the inclined first reactor for mixing the solid manure by gravity force, the bottomless drawer technique for discharging, the fixed film technique for rapid methane generation, and a manure compost produced with low nitrogen losses. The recently developed technology is in the process of testing and refinement. The local association of farms, horticulture enterprises, food processing units, food stores, and consumers in Järna aims to... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm nutrient management Buildings and machinery Recycling; Balancing and resource management. |
| Ano: 2008 |
URL: http://orgprints.org/15165/1/Sch%C3%A4fer_26.11.2008.pdf |
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| Winterling, Andrea; Walter, Roswitha; Brandhuber, Robert; Wiesinger, Klaus; Borchert, Herbert; Burger, Frank; Huber, Thomas. |
| Das Projekt „Entwicklung und Erprobung eines Agroforstsystems im ökologischen Landbau zur Energieholzgewinnung“ ist eine Kooperation der beiden bayerischen Landesanstalten für Landwirtschaft (LfL) und für Wald und Forstwirtschaft (LWF). Die Versuchsstandorte liegen in der nördlichen Münchener Ebene bei Freising und im südlichen Frankenjura in der Nähe von Kaisheim. Die zentrale Frage des Projektes ist, welche Erträge und Qualitäten die landwirtschaftlichen Feldfrüchte in einem Agroforstsystem im Vergleich zur herkömmlichen Bewirtschaftung ohne Bäume auf dem Acker liefern. Es wird eine positive Wirkung von Baumstreifen im Kurzumtrieb auf den Ertrag der dazwischen liegenden landwirtschaftlichen Kulturen erwartet. Außerdem wird untersucht, ob in einem... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management. |
| Ano: 2012 |
URL: http://orgprints.org/20967/1/Winterling_et_al_2012_Agroforst.pdf |
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| Lohr, Luanne. |
| This case study reviews the economic, social, and environmental benefits associated with organic agriculture in the United States. Measurable impacts are quantified by comparing indicators of benefits in counties with organic farms and counties without. Statistical differences across counties with and without organic farms provide preliminary evidence that organic farms may generate a variety of direct and indirect benefits. Of 36 indicators tested across a range of economic, social, and environmental benefits, 26 favor organic systems, three favor conventional systems, and seven are neutral. Even though organic farmers are not a large percentage of the total number of U.S. farmers, they may be influencing mainstream agriculture to shift toward greater... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management. |
| Ano: 2005 |
URL: http://orgprints.org/4411/4/4411%2DLohr_4p_revised%2Ded.pdf |
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| Johansson, Sheshti; Nielsen, Lars Henrik; Østergård, Hanne. |
| Two different scenarios of biogas production based on energy crops and manure and one scenario where the biogas production is combined with bioethanol production were evaluated with socio-economic analysis. The products from the biogas plants are heat and electricity as well as organic fertilizer. The socio-economic analysis compares the scenarios with a Danish organic farming reference scenario. There are several levels of analysis, where different external aspects are added in each level, e.g. externalities such as savings in CO2-emissions by replacing fossil fuels. The competition between use of land for bioenergy or for food is evaluated. |
| Tipo: Report |
Palavras-chave: Recycling; Balancing and resource management. |
| Ano: 2011 |
URL: http://orgprints.org/19039/2/19039.pdf |
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| Die Auswirkungen der Biogaserzeugung auf den gesamten ökologisch bewirtschafteten Betrieb sind bisher noch wenig untersucht. Durch dieses Fachgespräch sollen Praxiserfahrungen und Forschungsergebnisse zur Biogaserzeugung zusammengetragen werden. An der Diskussion werden sowohl Praktiker und Wissenschaftler als auch Administration und technische Entwicklung beteiligt sein. Ziel ist es, Regelungslücken zu schließen und für die Praxis Handlungsempfehlungen auszusprechen. Aus den verbleibenden offenen Fragen wird zukünftiger Forschungsbedarf abgeleitet. Die Ergebnisse des Fachgespräches werden für die Praxis aufbereitet und stehen als Handlungsempfehlung zur Verfügung. |
| Tipo: Project description |
Palavras-chave: Buildings and machinery Recycling; Balancing and resource management. |
| Ano: 2024 |
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| Registros recuperados: 73 | |
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