Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 683
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Brassicas in sustainable production and organic farming Organic Eprints
Thorup-Kristensen, Kristian.
Brassica plant species show some characteristics in their use of plant nutrients which make them different from most other crops. These characteristics often make brassicas difficult to grow in low-input systems with limited nutrient availability, but at the same time they also make some brassica species valuable tools for reducing nitrate leaching losses and improving N management in farming systems. The paper presents experimental results on brassica crops as main crops and cover crops.
Tipo: Conference paper, poster, etc. Palavras-chave: Vegetables; Air and water emissions.
Ano: 2008 URL: http://orgprints.org/16320/1/16320.pdf
Imagem não selecionada

Imprime registro no formato completo
Buffer strips as filters for nutrients from grazed lands and nutrient cycling on the buffer strips Organic Eprints
Uusi-Kämppä, Jaana; Granlund, Kirsti; Palojärvi, Ansa; Rankinen, Katri; Regina, Kristiina; Valkama, Anna-Mari.
The retention of agricultural nitrogen and phosphorus by 10-m-wide grass buffer strips and buffers under natural vegetation has been studied for ten years on an experimental field at Jokioinen.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2003 URL: http://orgprints.org/11269/1/NJF.pdf
Imagem não selecionada

Imprime registro no formato completo
Can on-farm bioenergy production make organic farming more sustainable? - A model for energy balance, nitrogen losses, and green house gas emissions in a 1000 ha energy catchment with organic dairy farming and integrated bioenergy production Organic Eprints
Pugesgaard, S.; Dalgaard, T.; Jørgensen, U.; Olesen, J.E.; Møller, H.; Jensen, E.S..
Can biogas and bioethanol production make organic farming more sustainable? - Results from a model for the fossil energy balance, Nitrogen losses, and greenhouse gas emissions in a 1000 ha energy catchment with organic dairy farming and integrated biogas and bioethanol production. Dalgaard T1, Pugesgaard S1, Jørgensen U1, Olesen JE1, Møller HB1 and Jensen ES2 1) Dept. Agroecology and Environment. Faculty of Agricultural Sciences (DJF), University of Aarhus. DK-8830 Tjele. Denmark. Contact: tommy.dalgaard@agrsci.dk 2) Biosystems Department, Risø DTU, The National Laboratory for Sustainable Energy, The Technical University of Denmark DK-4000 Roskilde, Denmark The vision of organic farming systems, independent of fossil energy resources, with...
Tipo: Conference paper, poster, etc. Palavras-chave: Farm nutrient management; Air and water emissions.
Ano: 2008 URL: http://orgprints.org/14801/1/14801.pdf
Imagem não selecionada

Imprime registro no formato completo
Carbon footprint from cheese produced on milk from Holstein and Jersey cows feed hay differing in proportion of herbs Organic Eprints
Kristensen, Troels; Søegaard, Karen; Eriksen, Jørgen; Mogensen, Lisbeth.
The objective of the study was to assess the impact on emission of green house gasses (GHG) from production of cheese based on milk from different type of hay and breed of cows, and as an integrated part to give figures for emission from production of hay in climate lees favorable for on field hay drying. Emission of GHG was estimate using life cycle assessment with kg of milk and kg of energy corrected milk (ECM) delivered to the dairy factory, and kg of cheese at the retailor level in Denmark as functional units. Allocation at farm gate, between milk and meat, was made by biological relation between energy requirement to milk and meat production or economic allocation and at the dairy between cheese and whey using either economic allocation or system...
Tipo: Journal paper Palavras-chave: Production systems; Farm economics; Air and water emissions; Biodiversity and ecosystem services.
Ano: 2014 URL: http://orgprints.org/26477/7/26477.pdf
Imagem não selecionada

Imprime registro no formato completo
Carbon footprint of food maintenance in Finnish households Organic Eprints
Kauppinen, Tommi; Katajajuuri, Juha-Matti; Pesonen, Inkeri; Kurppa, Sirpa.
This paper identifies the primary consumer actions having an effect on carbon footprint, their relative importance and their sensitivity to consumer choice concerning food maintenance. Food maintenance (transportation, preservation and preparation of food) of a Finnish household produces annually 170 kilograms of CO2-equivalent per individual as an average which corresponds approximately 2 % of the greenhouse gas emissions of private consumption. Of transportation, preservation and preparation, we find the preservation as the most important source of greenhouse gas emissions.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16407/1/consumer3.pdf
Imagem não selecionada

Imprime registro no formato completo
Carbon footprints of crops from organic and conventional arable crop rotations – using a life cycle assessment approach Organic Eprints
Knudsen, Marie Trydeman; Meyer-Aurich, Andreas; Olesen, Jørgen E.; Chirinda, N.; Hermansen, J.E..
Many current organic arable agriculture systems are challenged by a dependency on imported livestock manure from conventional agriculture. At the same time organic agriculture aims at being climate friendly. A life cycle assessment is used in this paper to compare the carbon footprints of different organic arable crop rotations with different sources of N supply. Data from long-term field experiments at three different locations in Denmark were used to analyse three different organic cropping systems (‘Slurry’, ‘Biogas’ and ‘Mulching’), one conventional cropping system (‘Conventional’) and a “No input” system as reference systems. The ‘Slurry’ and ‘Conventional’ rotations received slurry and mineral fertilizer, respectively, whereas the ‘No input’ was...
Tipo: Journal paper Palavras-chave: Production systems; Crop combinations and interactions; Crop husbandry; Air and water emissions; Environmental aspects.
Ano: 2013 URL: http://orgprints.org/23069/13/23069.pdf
Imagem não selecionada

Imprime registro no formato completo
Carbon footprints of organic dairying in six European countries—real farm data analysis Organic Eprints
Hietala, Sanna Maria; Smith, Laurence; Knudsen, Marie Trydeman; Kurpa, Sirpa; Padel, Susanne; Hermansen, John E..
Dairy farming is the largest agricultural contributor to greenhouse gas emissions in Europe. In this study, the carbon footprint of organic dairying was evaluated by means of a life cycle assessment, based on real farm data from six European countries: Austria, Belgium, Denmark, Finland, Italy and United Kingdom. A total of 34 farms were analysed. The assessment was carried out using an attributional approach with system boundaries from cradle to farm gate. In relation to dairy production, a functional unit of 1 kg of energy corrected milk was used. The results gave an average of 1.32 kg CO2 equivalents per kilogramme of energy-corrected milk with standard deviation of 0.22, which is consistent with recent studies. The main contributor to this is enteric...
Tipo: Journal paper Palavras-chave: Dairy cattle; Air and water emissions.
Ano: 2015 URL: http://orgprints.org/28882/1/Hietala%202015_A10.1007%252Fs13165-014-0084-0.pdf
Imagem não selecionada

Imprime registro no formato completo
Carbon sequestration in organic and conventional managed soils in the Netherlands Organic Eprints
Sukkel, Wijnand; van Geel, Willem; de Haan, Janjo.
Next to other important agronomic and ecological aspects, the organic matter sequestration in the soil plays an important role in the CO2 balance. Based on detailed farm registrations, the input of effective organic matter and the changes in carbon sequestration in the soil was calculated for a large number of organic and conventional farms in the Netherlands. Results show that both organic and conventional management resulted in a decrease of the pool of organic carbon in the soil. The average decrease for the conventional management was 401 kg ha-1 year-1 and for the organic management 261 kg ha-1 year-1. The input of effective organic matter in the soil was significantly higher in organic than in conventional farms. Animal manure was the main...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Air and water emissions.
Ano: 2008 URL: http://orgprints.org/12300/1/12300.pdf
Imagem não selecionada

Imprime registro no formato completo
Catch Crop Residues Stimulate N2O Emissions During Spring, Without Affecting the Genetic Potential for Nitrite and N2O Reduction Organic Eprints
Duan, Yun-Feng; Hallin, Sara; Jones, Christopher M.; Priemé, Anders; Labouriau, Rodrigo; Petersen, Søren O..
Organic agriculture depends on recycling of N to sustain crop production, and the use of catch crops to prevent leaching losses during winter is part of this strategy. The finding in this study, that catch crop residues were a more consistent source of nitrous oxide emissions in spring than synthetic fertiliser, indicates catch crop residue decomposition may contribute negatively to the climate impact of the farming system. Management practices are needed that reduce the potential for denitrification, which is the main source of nitrous oxide. Possible strategies include cultivation to promote aerobic rather than anaerobic degradation, and timing of manure application to avoid that mineral N from manure accumulates during residue decomposition....
Tipo: Journal paper Palavras-chave: Crop combinations and interactions; Soil biology; Nutrient turnover; Air and water emissions.
Ano: 2018 URL: http://orgprints.org/36654/1/fmicb_09_02629.pdf
Imagem não selecionada

Imprime registro no formato completo
Catch crop strategy and nitrate leaching following a grazed grass-clover Organic Eprints
Hansen, E.M.; Eriksen, J.; Vinther, F.P..
The objective of the study was to prevent the accumulation of high concentrations of mineral N in the soil during the drainage season by growing the presumably most effective catch crop, Italian ryegrass, undersown in barley as a green crop for silage on sandy soil. Further more, to examine the effect on two fields with different management of the grass-clover ley and therefore a different mineralization potential after ploughing. The green barley/Italian ryegrass treatment was compared with barley grown to maturity with and without an undersown conventional catch crop of perennial ryegrass.
Tipo: Journal paper Palavras-chave: Nutrient turnover; Air and water emissions.
Ano: 2007 URL: http://orgprints.org/10621/1/10621.doc
Imagem não selecionada

Imprime registro no formato completo
Catch Crops in Organic Farming Systems without Livestock Husbandry - Simulations with the DAISY model Organic Eprints
Müller, Torsten; Thorup-Kristensen, Kristian; Magid, Jakob; Jensen, Lars Stoumann; Hansen, Søren.
This paper presents simulations of the soil-plant-atmosphere model DAISY based on an organic crop rotation with incorporation of different catch crops following pea as a leguminous cash crop. Special emphasise was put on the simulation of N-mineralisation/-immobilisation and of soil microbial biomass N. The DAISY model was able to simulate soil mineral N and soil microbial biomass N after soil incorporation of catch crop plant residues to some extend. Several processes need further attention and may be integrated into the DAISY model: (1) soil tillage induced mobilisation of organic material including considerable amounts of organic N, (2) winter killing of sensitive plant species and varieties, (3) decomposition of plant residues at the soil surface as...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Crop combinations and interactions; Production systems; Air and water emissions.
Ano: 2006 URL: http://orgprints.org/7886/2/7886.pdf
Imagem não selecionada

Imprime registro no formato completo
Cattle trampling reduces the risk of nitrate leaching in organic dairy rotations Organic Eprints
Lamandé, M.; Eriksen, J.; Jacobsen, O.H.; Krogh, P.H..
Organic dairy farming is characterized by grazing cows in contrast to Danish conventional farms where the majority of cows are kept indoors. Cattle trampling reduces the finer macroporosity in the first five to ten centimetres of the soil. This caused a low infiltration capacity at the soil surface, giving a higher probability to initiate macropore flow at the surface. Rapid water movement through macropores bypasses the soil matrix, reducing nitrate leaching.
Tipo: Newspaper or magazine article Palavras-chave: Air and water emissions; Biodiversity and ecosystem services.
Ano: 2010 URL: http://orgprints.org/20675/4/20675.pdf
Imagem não selecionada

Imprime registro no formato completo
Cattle trampling reduces the risk of nitrate leaching in organic dairy rotations Organic Eprints
Lamandé, M.; Eriksen, J.; Krogh, P.H.; Jacobsen, O.H..
Organic dairy farming is characterized by grazing cows in contrast to Danish conventional farms where the majority of cows are kept indoors. Cattle trampling reduces the finer macroporosity in the top 5-10 cm of the soil. This causes a low infiltration capacity at the soil surface, giving a higher probability of macropore flow from the surface. Rapid water movement through macropores bypasses the soil matrix, reducing nitrate leaching. We investigated how three years of cattle trampling in organic grass-clover fields could influence the risk of nitrate leaching in the autumn. The experimental part of this study was situated in Denmark on a loamy sand within a long-term organic dairy crop rotation trial. Experimental plots were irrigated with a concentrated...
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions; Biodiversity and ecosystem services.
Ano: 2010 URL: http://orgprints.org/20676/5/20676.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate Change Adaptation Through Science-Farmer-Policy Dialogue in Mali Organic Eprints
Bautze, Lin; Nicolay, Gian L.; Meier, Matthias; Gattinger, Andreas; Müller, Adrian.
Climate change increases the number of risks for agricultural production in arid and semiarid regions, especially in Western Africa. Smallholder farmers are particularly vulnerable to climate change risks. These risks affect their socioeconomic situation, as well as the local food sector value chain in general. Therefore, their food security is threatened if smallholder farming structures do not adapt to them. Thus, effective climate change adaptation measures for smallholders are essential and should be implemented without delay. However, success hinges on the acceptance of the promoted measures among various stakeholders. Thus, their acceptance needs to be assessed before promoting. The project “The potential of sustainable land-use systems to promote...
Tipo: Book chapter Palavras-chave: Air and water emissions; Policy environments and social economy; Africa.
Ano: 2018 URL: http://orgprints.org/34706/1/Bautze-etal-2018_ReferenceWorkEntry_ClimateChangeAdaptationThrough-Chapter-p1-15.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate Change, Agriculture and Development in Croatia Organic Eprints
Legro, Susan; Znaor, Darko; Landau, Seth.
Both the challenges and potential benefits of climate change mitigation and adaptation are particularly apparent in Croatia's agricultural sector. In 2004, this sector emitted 3.558 Gg of CO2 equivalent, comprising 12 percent of the country’s anthropogenic GHG emissions in that year. Soil management accounted for 62 percent of these emissions, enteric fermentation (associated with animal digestive systems) accounted for 25 percent, and manure management for 13 percent. However, recent research suggests that the GHG emissions generated by Croatian agriculture and related activities (e.g., energy, farm-inputs, trade, transport, agricultural research, veterinary services) are responsible for 18 percent of all anthropogenic GHG emissions in Croatia. The...
Tipo: Journal paper Palavras-chave: "Organics" in general; Farming Systems; Air and water emissions; Policy environments and social economy; Environmental aspects.
Ano: 2008
Imagem não selecionada

Imprime registro no formato completo
Climate Change and Organic Farming in Developing Countries Organic Eprints
Fliessbach, Andreas; Amador, Manuel; Meirelles, Ana; Schwank, Othmar; Verhagen, Jan; Garibay, Salvador.
What is the role of organic farming in mitigating the consequences of climate changes? This session provides background information and intends to initiate a debate among policy makers and stakeholders.
Tipo: Conference paper, poster, etc. Palavras-chave: Policy environments and social economy; "Organics" in general; Air and water emissions.
Ano: 2007 URL: http://orgprints.org/15818/1/1_fliessbach_fibl.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate effects of recycled fertilizers and biochar: emissions of nitrous oxide, methane and ammonia in a field experiment Organic Eprints
Norah, Efosa; Krause, Hans-Martin; Bünemann, Else K.; Hüppi, Roman; Häni, Christoph; Six, Johan.
Background Nitrogen (N) fertilizers are essential for crop production. Farmyard manure and slurry traditionally constitute about half of the total N inputs into crop production in Switzerland. Recycled fertilizers such as biogas slurry, liquid digestates and compost enable simultaneous energy production and closing of nutrient cycles. There is evidence that recycled fertilizers can help to increase N use efficiencies and to improve N supply in organic farming. Biochar amendment has shown a potential to mitigate soil greenhouse gas (GHG) emissions, in particular nitrous oxide (N2O) emissions. Here, we combine one of the liquid recycled fertilizer treatments with biochar. In a 2.5-years on-farm experiment, we quantify GHG emissions and further gaseous...
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions; Soil.
Ano: 2018 URL: http://orgprints.org/33934/1/Poster_Climate_effects_NEfosa_2018.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate relevance of foodstuffs – what can the organic farmer do? Organic Eprints
Lindenthal, Thomas.
Over the past year the Research Institute for Organic Agriculture (FiBL) Austria has been carrying out a comprehensive study regarding the climate relevance of foodstuffs (client: “Zurück zum Ursprung”/Hofer KG and the Ministry of Agriculture). This study calculated the CO2-Emissions along the entire supply chain of 95-100 organic foodstuffs as compared to conventional foodstuffs, from the agricultural production to the supermarket branches.
Tipo: Working paper Palavras-chave: "Organics" in general; Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16508/1/lindenthal-2009-BIONETArtikel_englisch_endversion.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate-friendly food Organic Eprints
Olesen, Jørgen E..
Climate change is without doubt one of the greatest challenges mankind has ever faced. This is not least due to the enormous consequences that climate change will have for the world’s ecosystems and for our living conditions. At the same time, climate change is a colossal political problem, in which the world’s democracies run the risk not being able to carry out the decisions that have to be made. The political and democratic problem builds on the very limited understanding that there is a connection between emissions of greenhouse gases, climate change and their impact on the living conditions of individual people. In reality, there is both a spatial and a temporal separation between emissions and effects. The world’s industrialised countries, which...
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions; Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16315/1/16315.pdf
Imagem não selecionada

Imprime registro no formato completo
CO2-eq-emissions of organic and conventional foodstuffs in Austria Organic Eprints
Lindenthal, T.; Markut, T.; Hörtenhuber, S.; Rudolph, G..
To date 74 products (in each case KONV, Bio-ZZU and, in part Bio-EU) have been evaluated: dairy products (47 products), fruit and vegetables (currently 15 products), bread products (currently 12 products). This summary only presents the results of selected products in the KONV and Bio-ZZU categories.
Tipo: Working paper Palavras-chave: Air and water emissions.
Ano: 2009 URL: http://orgprints.org/16509/1/lindenthal-etal-2009-Englische_Ueberetzung_Artikel_Grundlageninformation__1Juli09_endversion.pdf
Registros recuperados: 683
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional