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Doppelt! Für einen anderen Eintrag verwenden. Rezyklierte Phosphordünger - was die Branche davon hält Organic Eprints
Bünemann-König, Else; Symanczik, Sarah; Mäder, Paul; Løes, Anne-Kristin.
Phosphor in Abwässern muss ab 2026 rückgewonnen werden. Was halten Landwirte und andere Düngeexperten davon?
Tipo: Newspaper or magazine article Palavras-chave: Soil quality; Composting and manuring; Air and water emissions.
Ano: 2016 URL: http://orgprints.org/30360/1/bioaktuell_516_D13_Phosphor2.pdf
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DoubleCrop: Dobbeltdyrkning og plantebaserede gødninger til dyrkning af rækkeafgrøder Organic Eprints
Hefner, M.; Sørensen, Jørn Nygaard; de Visser, Richard; Kristensen, Hanne Lakkenborg.
Præsentation af DoubleCrop ved et avlermøde
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Crop combinations and interactions; Nutrient turnover; Soil tillage; Air and water emissions; Vegetables; Root crops.
Ano: 2019 URL: http://orgprints.org/35461/1/190305_DoubleCrop_avlerm%C3%B8de_Margita.pdf
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DoubleCrop: Såtidsforsøg med efterafgrøder Organic Eprints
Sørensen, Jørn Nygaard.
Resultater fra et forsøg om effekten af så-tidspunkt på efterafgrøders kvælstof-optag
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions; Farm nutrient management.
Ano: 2019 URL: http://orgprints.org/35463/1/S%C3%A5tidsfors%C3%B8g%20med%20efterafgr%C3%B8der%20J%C3%B8rn%20Nygaard%20S%C3%B8rensen%2005mar2019%20PP.pptx
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Driftsopplegget påvirker kuas klimaavtrykk Organic Eprints
Bergslid, Ildri (Rose) Kristine; Hansen, Sissel.
På en rekke områder er dagens modeller for beregning av klimagassutslipp fra drøvtyggere mangelfulle. Type drift er avgjørende for drøvtyggernes netto klimabelastning. På et Klimaverksted ble temaet diskutert og svakhetene med dagens system oppsummert.
Tipo: Newspaper or magazine article Palavras-chave: Production systems; Dairy cattle; Beef cattle; Air and water emissions.
Ano: 2016 URL: http://orgprints.org/30779/1/%C3%98ko_Landbruk_03_2016_Kuas_avtrykk.pdf
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Drivhusgas fra energi-afgrøder Organic Eprints
Carter, Mette S..
Udledning af drivhusgas ved dyrkning af energiafgrøder kan ophæve en betydelig del af den drivhusgasgevinst, der er forbundet med biobrændsler.
Tipo: Newspaper or magazine article Palavras-chave: Nutrient turnover; Air and water emissions.
Ano: 2010 URL: http://orgprints.org/18326/4/18326.pdf
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Dutch (organic) agriculture, carbon sequestration and energy production Organic Eprints
van der Burgt, Ir. G.J.H.M.; Timmermans, Dr. B.G.H.; Staps, Ing. J.J.M..
Carbon sequestration in soils is often mentioned in the discussions about climate changes. In this paper the opportunities for carbon sequestration in Dutch agriculture are discussed at farm and national level. Farm internal carbon sources are already completely used in livestock farming. The effect under arable conditions is limited in time and very limited compared to national CO2 emission. External sources are scarce. Energy production out of crop residues and manure via biogas installations is possible but the overall impact is again very limited. The effect of this biogas pathway on soil organic matter quantity and quality is not yet known. Organic arable farmers do already have a higher soil organic matter content than conventional farmers, partly...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Air and water emissions.
Ano: 2008 URL: http://orgprints.org/15863/1/Carbon_sequestration.pdf
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Dynamically optimal phosphorus management and agricultural water protection Organic Eprints
Iho, Antti; Laukkanen, Marita.
This paper puts forward a model of the role of phosphorus in crop production, soil phosphorus dynamics and phosphorus loading that integrates the salient economic and ecological features of agricultural phosphorus management. The model accounts for the links between phosphorus fertilization, crop yield, accumulation of soil phosphorus reserves, and phosphorus loading. It can be used to guide precision phosphorus management and erosion control as means to mitigate agricultural loading. Using a parameterization for cereal production in southern Finland, the model is solved numerically to analyze the intertemporally optimal combination of fertilization and erosion and the associated soil phosphorus development. The optimal fertilizer application rate changes...
Tipo: Report Palavras-chave: Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16449/1/Discussion.pdf
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Dyrkningssystemernes effekt på produktion og miljø Organic Eprints
Olesen, Jørgen E..
Moderne landbrugssystemer har en kraftig indflydelse på det omgivende miljø, og i Danmark er der særlig fokus på nitratudvaskning og drivhusgasemissioner fra landbruget. På det globale skala er lattergas (N2O) en af de væsentlige drivhusgasser (Mosier et al., 1998), og i Danmark er landbruget langt den største kilde til udledning af lattergas. Der stilles i stigende grad krav til landbruget om-kring reduktion af drivhusgasudledningerne, og tiltag til reduktion af udledningerne af N2O og me-toder til lagring af kulstof i jorden er derfor påkrævede. Bæredygtige landbrugssystemer skal også opfylde behovet for tilstrækkelige mængder og kvalitet i fødevarerne. Økologisk jordbrug har visse fordele i disse sammenhænge, men der er også behov for forbedringer. I...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16312/1/16312.pdf
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Ecological agriculture- a way towards sustainable agricultural practice Organic Eprints
Znaor, Darko; Bošnjaković, Branko.
Today, and especially in the years to come, agriculture, as well as all other human activities, will have to pay much more attention to their environmental impacts. In other words, it is expected that in the near future only technologies which care about environmental aspects will be promoted and accepted by policy makers, scientists, consumers, and society in general. This is not surprising since the environmental problems are among the most urgent ones our civilization will have to tackle and solve. This demand for more careful stewardship of environment is also acknowledged by philosophy of sustainable development - a widely recognized concept and necessity of future development. Although established at the very beginning of this century, ecological...
Tipo: Journal paper Palavras-chave: "Organics" in general; Farming Systems; Nutrient turnover; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Food systems; Policy environments and social economy; Environmental aspects.
Ano: 1996
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Ecological Agriculture: analysis of the most commonly criticised aspects Organic Eprints
Znaor, Darko.
The paper provides an overview on agronomic, environmental, economic and social performance of organic farming in several EU and other countries. It also discuses most commonly criticised aspects in relation to organic farming and analyses them in an objective and non-biased manner.
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Farm economics; Farming Systems; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Food systems; Policy environments and social economy; Environmental aspects.
Ano: 1994
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Ecological Recycling Agriculture to Enhance Agro-Ecosystem Services in the Baltic Sea Region: Guidelines for Implementation Organic Eprints
Stein-Bachinger, Karin; Reckling, Moritz; Bachinger, Johann; Hufnagel, Johannes; Wijnand, Koker; Granstedt, Artur.
Eutrophication caused by agriculture is an increasing ecological threat to the Baltic Sea. Modern, resource-efficient farming systems based on integrated plant and animal production, effective nutrient recycling and low external inputs can enhance multiple agro-ecosystem services, resulting in reduced pollution. Practical examples of such farming systems are not widespread. Therefore, the Baltic Ecological Recycling Agriculture and Society (BERAS) Implementation project aimed to foster this systemic shift. In this paper, agronomic strategies are described to improve nitrogen (N) efficiency for the conversion to ecological recycling agriculture (ERA). First, N farm gate balances of 22 farms in conversion are presented. They showed a large variation...
Tipo: Journal paper Palavras-chave: Crop combinations and interactions; Air and water emissions.
Ano: 2015 URL: http://orgprints.org/29314/1/pdf
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EFFECT OF AN IN-SEASON LIVING MULCH ON LEACHING OF INORGANIC NITROGEN IN CAULIFLOWER (BRASSICA OLERACEA L. VAR. BOTRYTIS) CROPPING IN SLOVENIA, GERMANY AND DENMARK Organic Eprints
Kristensen, Hanne Lakkenborg; Campanelli, G.; Bavec, Franc; von Fragstein und Niemsdorff, Peter; Canali, S.; Tittarelli, F..
Vegetables with a high nitrogen demand such as cauliflower may cause intensive leaching of nitrate to the environment in conventional as well as in organic production. In organic cropping systems, the use of an in-season living mulch may decrease the risk of nitrate leaching after harvest when left growing in the field to the end of the leaching season in spring. The aim of this study was to investigate the effect of growing an in-season living mulch including legumes on the risk of leaching of inorganic nitrogen over winter, and soil nitrogen availability the following spring. Three field experiments were carried out in Slovenia, Germany and Denmark in the frame of the Interveg project (CORE organic II). Evaluation of soil inorganic nitrogen content was...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Nutrient turnover; Air and water emissions; Vegetables; Farm nutrient management.
Ano: 2014 URL: http://orgprints.org/23981/1/23981%20Kristensen%20et%20al_Effect%20of%20living%20mulch%20on%20N%20leaching%20in%20cauliflower_MM.pdf
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Effect of nose ringing and stocking rate of pregnant and lactating outdoor sows on exploratory behavior, grass cover and nutrient loss potential Organic Eprints
Eriksen, J.; Studnitz, M.; Strudsholm, K.; Kongsted, A.G.; Hermansen, J.E..
Nose ringing of outdoor sows is practiced to reduce grass sward damage for environmental reasons but conflicts with natural behaviour considerations. We investigated effects of ringing pregnant and lactating outdoor sows on foraging and explorative behaviour, grass cover and nutrient deposition. The experiment included both ringed and unringed sows. For unringed sows the paddocks were either used continuously throughout the experiment or divided into two and sows were moved half way through the experimental period leaving the first used paddock for regrowth. Ringing did not prevent the sow’s rooting, but rooting was less pronounced, when sows were ringed. On average, ringing increased grass cover from 14 to 38% and from 64 to 81% in paddocks with pregnant...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Pigs; Air and water emissions.
Ano: 2006 URL: http://orgprints.org/10043/1/10043.pdf
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Effect of outdoor production, slurry management and buffer zones on phosphorus and nitrogen runoff losses from Finnish cattle farms Organic Eprints
Uusi-Kämppä, Jaana.
This thesis sums up studies on phosphorus (P) and nitrogen (N) losses to water from forested feedlots and slurry-amended grass fields. Moreover, different ways of mitigating the losses in a boreal climate are discussed. Studies were conducted in 1996-2008 at Jokioinen, Tohmajärvi, Ruukki and Taivalkoski. Water samples representing surface runoff were collected from open ditches and analysed e.g. for total solids (sediment) as well as total P (TP), dissolved reactive P (DRP) and total N (TN) to estimate nutrient losses from forested feedlots with different stocking rates (animal units per hectare, AU/ha) and from slurry-amended grass. Surface runoff samples were similarly analysed to evaluate the efficacy of 10 m wide buffer zones to decrease and retain...
Tipo: Thesis Palavras-chave: Air and water emissions.
Ano: 2010 URL: http://orgprints.org/16813/1/mtttiede7.pdf
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Effect of rooting area and drinker in the outdoor run on behaviour and Ascaris infection of organic pigs Organic Eprints
Vermeer, Herman M.; Borgsteede, Fred H.M.; Gaasenbeek, Cor P.A.; Altena, Henk.
Hygiene is often a problem on the outdoor runs of growing organic pigs. Manure and urine are mainly excreted outside, but spread all over the run. Reduc-ing the dirty surface may improve well being, reduce ammonia emission, improve hygiene and reduce labour and parasite infections. The presence of a rooting area and of a drinker on the outdoor run were tested in a 2x2 factorial design. The pens with the rooting areas had a higher number of pigs on the outdoor run than the pens without a rooting area (1.6 vs 1.2 pigs). This was caused by more pigs in area 2 and 3. At higher temperatures there were more pigs outside, except in the root-ing area: this was popular at all temperatures. A rooting area resulted in a cleaner outdoor area, however in some cases...
Tipo: Report Palavras-chave: Pigs; Health and welfare; Air and water emissions.
Ano: 2006 URL: http://orgprints.org/13722/1/Vermeer_QLIF_4%2D1%2D1%2D3_RIAH_final_report_11%2D04%2D06.pdf
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EFFECTS OF ANAEROBIC DIGESTION AND SEPARATION OF PIG SLURRY ON ODOR EMISSION Organic Eprints
Hansen, Martin N.; Kai, Peter; Møller, Henrik B..
Storage and land application of livestock manure causes considerable odor nuisance to the surrounding neighborhood. Anaerobic digestion and separation of slurry change composition and physical properties of slurry and may therefore lessen the odor pollution during storage and land application. An experiment was set up to study the effects of anaerobic digestion and separation of slurry on the emission of odor. Odor concentration above treated and untreated slurry was compared during storage and following land application using GC/MS analysis and dynamic dilution olfactometry. Slurry concentrations of malodorous volatile fatty acids were reduced by between 79 to 97% by anaerobic digestion, while concentrations of malodorous phenolic and indolic odor...
Tipo: Journal paper Palavras-chave: Air and water emissions.
Ano: 2006 URL: http://orgprints.org/5614/1/5614_ny.pdf
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Effects of conventional and organic land use types on water protection criteria in Germany Organic Eprints
Kolbe, Hartmut.
The mean values and ranges of several water protection criteria were calculated for arable land, grassland and forests in Germany on the basis of research work and the literature. By additional evaluation steps, relationships and efficiency coefficients were calculated for the different types of land use. Methods of balance calculations are proposed as preventive strategies for efficient water protection.
Tipo: Report Palavras-chave: Nutrient turnover; Soil; Crop husbandry; Air and water emissions.
Ano: 2009 URL: http://orgprints.org/15628/1/kolbe%2D09%2Dwater%2Dprotection%2Dcriteria.pdf
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Effects of digestate from anaerobic digested cattle slurry and plant materials on soil microbiota and fertility Organic Eprints
Johansen, Anders; Carter, Mette S.; Jensen, Erik Steen; Hauggaard-Nielsen, Henrik; Ambus, Per.
Anaerobic digestion of animal manure and crop residues may be employed to produce biogas as a climate-neutral source of energy to provide fertilizers which allow recycling of plant nutrients on the farm. However, compared to fertilizing with the pristine input materials (e.g. raw animal slurry or plant residues), the effect on soil microbiota and soil fertility may be impacted due to the increased content of mineral nitrogen (N) and decreased amount of organic carbon (C); an issue of concern in especially organic farming systems. An incubation study was performed where 1) water, 2) raw cattle slurry, 3) anaerobically digested cattle slurry + maize, 4) anaerobically digested cattle slurry + grass-clover, or 5) fresh grass-clover was applied to soil at...
Tipo: Journal paper Palavras-chave: Soil quality; Nutrient turnover; Air and water emissions; Biodiversity and ecosystem services; Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/20446/4/20446.pdf
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Effects of digestate from anaerobic fermented cattle slurry and plant materials on soil microbiota and fertility Organic Eprints
Johansen, Anders; Carter, Mette S.; Jensen, Erik Steen; Hauggaard-Nielsen, Henrik; Ambus, Per.
Soil from the Højbakkegård experimental (BioConcens) field was amended with nothing (control), each of two anaerobic digested (AD) materials (mixture of AD cattle manure and maize, mixture of AD cattle manure and cut off grass-clover material), raw cattle manure, and grass-clover in five individual treat-ments. The materials were incorporated homogeneously into the soil and sampled destructively at 0, 1, 3 and 9 days after incorporation. Besides, experiments were performed to follow the turnover of these materials, measured as accumulated respiration over a longer period. Measures included available organic soil carbon (cold- and hot-water extractable), soil mineral nitrogen concentration, soil pH, accumulated respiration over a two-week period, emission...
Tipo: Journal paper Palavras-chave: Soil quality; Nutrient turnover; Air and water emissions; Biodiversity and ecosystem services; Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/18894/7/18894.pdf
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Effects of farm heterogeneity and methods for upscaling on modelled nitrogen losses in agricultural landscapes Organic Eprints
Dalgaard, Tommy; Hutchings, Nicholas J.; Dragosits, U.; Olesen, J.E.; Kjeldsen, Chris; Drouet, J.L.; Cellier, P..
The aim of this study is to illustrate the importance of farm scale heterogeneity on nitrogen (N) losses in agricultural landscapes. Results are exemplified with a chain of N models calculating farm-N balances and distributing the N-surplus to N-losses (volatilisation, denitrification, leaching) and soil-N accumulation/release in a Danish landscape. Possible non-linearities in upscaling are assessed by comparing average model results based on (i) individual farm level calculations and (ii) averaged inputs at landscape level. Effects of the non-linearities that appear when scaling up from farm to landscape are demonstrated. Especially in relation to ammonia losses the non-linearity between livestock density and N-loss is significant (p > 0.999), with...
Tipo: Journal paper Palavras-chave: Air and water emissions; Landscape and recreation; Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/19043/4/19043.pdf
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