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| Registros recuperados: 683 | |
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| Hörtenhuber, Stefan; Zollitsch, Werner. |
| The aim of this study was to analyse the potential greenhouse gas emissions (GHGE) of locally and regionally produced, alternative protein‐rich feedstuffs (APRFs) which can be utilised in dairy cattle feeding as compared to extracted soybean meal (SBME) in a complete life‐cycle chain for Austria. In addition to GHGE from soil (N2O), from the production of mineral fertilizers and pesticides, industrial processes (oil milling, distillery, and drying plant) and use of fuels, the effects of land use change (LUC) were included in the calculation of GHGE. Currently, SBME, which is mainly imported from South‐America, is the most important protein feedstuff for livestock in Austria, but recently it was started to replace it by APRFs in diets for dairy cows for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Feeding and growth; Air and water emissions. |
| Ano: 2010 |
URL: http://orgprints.org/17994/1/hoertenhuber-zollitsch-2010-ifsa.pdf |
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| Halberg, Niels; Kristensen, Ib Sillebak; Møller, Berit E.. |
| At begrænse tabet af nærringsstoffer til det omgivende miljø indgår som en del af mange landmænds mål for god driftledelse. Det er vanskeligt at måle eller beregne det faktiske tab af kvælstof fra husdyrbedrifter, og der findes endnu ingen modeller, som kan beregne de enkelte tabsposter rimeligt præcist og samtidigt redegør for den samlede omsætning af kvælstof (N) på bedriften. Separate opgørelser af udnyttelse og tab af N fra enten besætning eller marker giver et mangelfuldt billede af bedriftens reelle udnyttelse af N. Derimod kan en beregning af en husdyrbedrifts samlede omsætning og overskud af N give et godt udtryk for det potentielle N-tab til det omgivende miljø. Ved DJF er der i flere år udført analyser af N-omsætningen og N-udnyttelse i... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Farm nutrient management; Air and water emissions. |
| Ano: 1998 |
URL: http://orgprints.org/13116/1/13116.pdf |
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| Pietola, Liisa. |
| Phosphogypsum from Siilinjärvi plant were tested in soil incubation-leaching-studies(I), and in liquid pig manure treatment (II) in farm pit. In soil columns, gypsum additions significantly reduced erodibility and ortho-P concentrations in the leaching water. In the pig manure test, the gypsum-based precipitate fractionated phosphorus to P-rich sediment and to almost P-free upper part. Upper low-P fraction represented 2/3 of the total manure volume. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2008 |
URL: http://orgprints.org/16046/1/fosfor1.pdf |
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| Uusi-Kämppä, Jaana; Mattila, Pasi K.. |
| As the livestock numbers on Finnish dairy farms have increased and most fields on dairy farms are under grass, it has become common to spread cattle slurry over grasslands. To estimate environmental effects of recurrent slurry applications, a 5-year field study was performed to compare nitrogen (N) losses to water and ammonia losses to air by volatilization, when cattle slurry was either surface broadcast or injected into clay soil after grass cuttings. Slurry was spread on the grass in summer (1996–1997) or both in summer and autumn (1998–2000). Biomass N uptake before grass harvesting and amount of soil mineral N in spring and autumn were measured and field N balances were calculated. Despite cool weather, up to one third of the ammonium N of broadcast... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring; Air and water emissions. |
| Ano: 2010 |
URL: http://orgprints.org/18181/1/uusi%2Dkamppa.pdf |
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| Dakpo, Hervé; LAIGNEL, Gabriel; Benoit, Marc. |
| The environmental impact of livestock is an important issue, and organic farming (OF) is particularly questioned about greenhouse gases (GHG) emissions. This study aims at comparing GHG emissions and non-renewable energy consumption in meat sheep production, in OF and conventional farming systems. These two criteria have been calculated ex-post on 1261 French year-farms monitored over 26 years. The functional unit used is the carcass weight and allocation between meat and wool is mass based. Regarding GHG emissions, the results show that organic farms emits 5% less GHG than conventional ones, with a higher proportion of methane and less indirect CO2 associated to less inputs use. Given the methodological difficulties, it is hard to argue if carbon... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions; Sheep and goats. |
| Ano: 2014 |
URL: http://orgprints.org/24340/1/24340%20Herve%20Dakpo%202014-01_MM.pdf |
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| Das hier beschriebene Verbundvorhaben umfasst folgende Teilprojekte: FKZ 18OE013, FKZ 18OE057, FKZ 18OE058, FKZ 18OE059, FKZ 18OE060, FKZ 18OE061, FKZ 18OE062, FKZ 18OE063 und FKZ 18OE064. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/id/saved_search/1729. Ziel des Vorhabens ist die Verbesserung des Nährstoffmanagements im ökologischen Gemüseanbau im Sinne einer Erhöhung der N-Effizienz, ausgewogenen K-Bilanzen und einer Verringerung der P- und S-Überbilanzen, im Freiland wie im geschützten Anbau. Unser Vorhaben basiert auf einer Zusammenstellung des aktuellen Wissenstands, der durch exemplarische Erhebungen von Nährstoffimporten (v.a.... |
| Tipo: Project description |
Palavras-chave: Nutrient turnover; Air and water emissions. |
| Ano: 2023 |
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| Müller, Adrian. |
| Bioenergy is one option to mitigate climate change in the energy sector. Sustainable bioenergy however faces several challenges. First, there is a widely discussed land competition between food and bioenergy crops. Second, there is a widely neglected competition for biomass between using it as a fertilizer for sustainable agriculture or as feedstock for bioenergy production. Sustainability standards for bioenergy capture several environmental, social and economic aspects and often also land competition, but neglect the agronomic aspects related to the fertilizer use of biomass. Accounting for this, however, the sustainable bioenergy potential seems rather low and may only be realized in biogas production. Such can make much sense, but expectation in... |
| Tipo: Book chapter |
Palavras-chave: Air and water emissions; Biodiversity and ecosystem services; Landscape and recreation. |
| Ano: 2014 |
URL: http://orgprints.org/25699/1/CH23-9780444595614_CommAM.pdf |
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| Uusitalo, Risto. |
| Runoff phosphorus (P) associated with eroded soil contributes to eutrophication to some extent. The present work examines two methods for estimating the potential bioavailability of particulate P (PP) in runoff, and studies the concentrations and losses of different P forms in surface and subsurface runoff from arable soils. The potential bioavailability of PP was approximated by extraction with (i) anion exchange resin (AER-PP), giving a measure of desorbable PP under aerobic conditions, and with (ii) bicarbonate-dithionite (BD-PP), which dissolves redox-labile PP. Both methods were applied in runoff analysis without sediment preconcentration. |
| Tipo: Thesis |
Palavras-chave: Air and water emissions. |
| Ano: 2004 |
URL: http://orgprints.org/11135/1/met53.pdf |
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| Mäder, Paul; Fliessbach, Andreas; David, Christophe; Cooper, Julia. |
| No Till and Reduced Till are conservation tillage practices with a high potential to restore or improve essential soil functions and mitigate climate change through carbon sequestration and reduced fuel use. While No Till systems are widely used in conventional farming, these techniques are challenging to adapt to organic farming due to weed pressure and frequent nitrogen deficiency in early spring. A potential answer may be Reduced Till, such as shallow inversion ploughing, or non-inversion tillage. The implementation of these practices in European organic farming systems was addressed by an interdisciplinary team of researchers from 11 European countries in a network CORE Organic II project (TILMAN-ORG). Farmer interviews revealed that No Till and... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil tillage; Air and water emissions. |
| Ano: 2014 |
URL: http://orgprints.org/27320/1/maeder-etal-vortrag-LongBeach-2014.pdf |
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| Elbe, Ulrike; Roß, Antje; Steffens, Günter; Van den Weghe, Herman; Winckler, Christoph. |
| The aim of this study was to examine the excrement load in outdoor ranges due to the outdoor run use of free-range laying hens (organic farming system) to quantify the accumulation of nutrients in the soil. The number of hens using the run (flock of 4,500 hens) were recorded (digital photographs; scan sampling interval 10 min, 5 hours/d, 23 d; 7 to 10/2003) and sward protection grids, positioned at different distances (2 , 6, 17 m) from the barn were used to get the amount of excreta (number and weight of droppings). On average 9.8 % of the hens used the range out of which 69 % preferred the area close to the barn (0-17 m). Excretion rates per hen amounted to 12,4 g*hour, thus accounting for a share of 5 % of the total excrements of the flock. The... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry; Air and water emissions. |
| Ano: 2005 |
URL: http://orgprints.org/3842/1/3842.pdf |
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| Mauscherning, Inken; Loges, Ralf; Pedersen, Lene; Taube, Friedhelm. |
| In maritime climates the production of winter wheat often leads to high nitrate leaching losses. In this study mixtures of winter wheat and catch crops were analyzed as alternative growing system to avoid high leaching losses. In a field experiment pure winter wheat grown as control showed highest N-losses. Leaching losses of 140 kg N ha-1 after the pre-crop grass-clover and of 50 kg N ha-1 after oats as pre-crop were measured. Compared to this, growing winter wheat in mixture with forage rape or oats reduced nitrate leaching by 50 %. Common vetch as mixture partner to winter wheat had a lower potential to reduce leaching losses. Comparable results were obtained growing the catch crops alone followed by spring wheat. Due to the competition for growth... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Air and water emissions. |
| Ano: 2006 |
URL: http://orgprints.org/7577/1/Mauscherning.doc |
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| Zambaux, Pauline; Melot, Romain; Aubry, C.. |
| Enjeu de santé publique et de préservation des milieux, la protection des captages et de la ressource en eau fait l’objet d’une série de dispositifs mis en oeuvre à la fois de façon règlementaire et volontaire. Les acteurs de la protection, à l’échelon local, ont notamment recours à toute la gamme d’outils fonciers : de la maîtrise de l’usage du sol à l’acquisition foncière en propriété. En plus, la mise en oeuvre de pratiques agricoles durables, par le biais du bail environnemental notamment, est une orientation forte pour concilier activité agricole et protection des ressources en eau. Les expériences observables en Île-de-France font état des obstacles rencontrés pour la mise en oeuvre de ce type d’actions. La principale difficulté, en dehors de la... |
| Tipo: Thesis |
Palavras-chave: Air and water emissions; Policy environments and social economy; Regulation. |
| Ano: 2011 |
URL: http://orgprints.org/27927/1/Zambaux_2011_M%C3%A9moire_ABIPEC.pdf |
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| Registros recuperados: 683 | |
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