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| Registros recuperados: 18 | |
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| Bedoussac, Laurent; Journet, Etienne-Pascal; Hauggaard-Nielsen, Henrik; Naudin, Christophe; Corre-Hellou, Guénaëlle; Prieur, Loïc; Jensen, Erik Steen; Justes, Eric. |
| Organic farming is based on to rely on a higher cropping systems diversity than its conventional counterpart and is regarded as one prototype to enhance the sustainability of agriculture and cereal-rich cropping systems. Nevertheless, organic arable crop rotations in temperate regions consist mainly of sole crops (SC; pure stands), with diverse pastures in farming systems with livestock being an exception (Hauggaard-Nielsen et al. 2001b). In organic farming, nitrogen (N) availability can be limiting especially in the absence of livestock (David et al. 2005ab) and causes cereal yield depressions and lower protein contents. For these reasons, integrating legumes with symbiotic fixation of atmospheric N2 is essential for balancing nitrogen exports from the... |
| Tipo: Book chapter |
Palavras-chave: "Organics" in general Pasture and forage crops Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/20917/7/20917.pdf |
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| Reichert, Lírio José; Gomes, Mário Conill; Schwengeber, José Ernani. |
| A crescente demanda por batata (Solanun tuberosum L.) e outras hortaliças cultivadas organicamente, representa uma importante oportunidade para alcançar mercados diferenciados e, ao mesmo tempo um desafio para os produtores. Os agricultores, ainda carecem de informações tecnológicas e mercadológicas para a obtenção de índices técnicos e econômicos satisfatórios. Por estes e outros motivos, em geral, a produção de batata no sistema orgânico é menor em comparação com a obtida no sistema convencional, devido à cultura estar sujeita a inúmeros fatores que poderão reduzir a produtividade. O estudo teve por objetivo avaliar sistemas de produção de batata orgânica, desenvolvidos por agricultores familiares na região sul do Rio Grande do Sul, tendo o município de... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24478/1/REICHERT%2C%20L%C3%ADrio%20Jos%C3%A9_Metodologia%20multicrit%C3%A9rio%20de%20apoio%20%C3%A0%20decis%C3%A3o%20para%20avaliar.pdf |
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| Jensen, Erik Steen; Peoples, Mark B.; Hauggaard-Nielsen, Henrik. |
| The grain legume/pulse faba bean (Vicia faba L.) is grown world-wide as protein source for food and feed and simultaneously faba bean offers ecosystem services such as N2 fixation and diversification of cropping systems. Even though the global average grain yield has almost doubled during the recent 50 years the area of faba beans has declined with 56% in the same period. This is especially the case for some of the former big producer countries such as China and Egypt. The yield season-to-season of faba bean and development of an industrialized agriculture based on fossil fuels (= N fertilizers, heavy mechanization) are some of the explanations for this development. Studies of faba bean in cropping systems have focussed on the effect of faba bean as a... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/20916/7/20916.pdf |
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| Coppola, F.; Haugaard-Nielsen, H.; Bastianoni, S.; Østergård, H.. |
| Sustainability of crop production has to be given high priority when global biomass resources are limited. Here emergy evaluation is applied in order to assess sustainability of crop production exemplified by winter wheat. Emergy evaluation takes into account all inputs involved in a production system (i.e. renewable and non-renewable, local and imported) and transforms them into a common measure of direct and indirect solar energy requirement. The evaluation of winter wheat production is conducted by comparing conventional and organic management on two soil types using Danish reference conditions. The resource use efficiency of wheat production per kg biomass is higher using conventional management practices. This is due to high yield based on large use... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2008 |
URL: http://orgprints.org/11381/2/11381.pdf |
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| Olesen, Jørgen E.; Sørensen, P.. |
| Hitherto it has been difficult for farmers to predict the effects of various sources of nitrogen (N) supply in organic farming, since these vary greatly in quality and thus in effect on crop yield. This has limited the planning of organic farming crop rotations and the application of manure and other mobile N sources to the crops, since the effect on crop yield would not easily be estimated. Here we used data from long-term organic crop rotation experiments in Denmark to determine the contribution of various N sources to yield of winter wheat and spring barley. The results showed consistent effects of N in soil organic matter, in organic matter applied to soils, in catch crops, in applied manure and of weed pressure. This opens the possibility for building... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24548/1/24548.pdf |
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| Bedoussac, Laurent; Journet, Etienne-Pascal; Hauggaard-Nielsen, Henrik; Naudin, Christophe; Corre-Hellou, Guénaëlle; Prieur, Loïc; Jensen, Erik Steen; Justes, Eric. |
| Increasing concerns about environmental impacts and reduction of inputs require a transformation of current cropping systems for better efficiency and sustainability (Cox and Atkins 1979; Jackson and Piper 1989; Vandermeer et al. 1998; Griffon 2006). New agronomic solutions are needed including multiple objectives like i) yield, ii) quality, iii) provision of ecological benefits and iv) the adaptation of production systems to climate change. Organic farming is regarded as a prototype to enhance the sustainability of present cereal-rich cropping systems. Organic farming is in general assumed to rely on higher crop diversity than its conventional counterpart. Nevertheless, organic arable crop rotations in temperate regions consist mainly of sole crops (SC)... |
| Tipo: Book chapter |
Palavras-chave: "Organics" in general Pasture and forage crops Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/18985/4/18985.pdf |
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| Oliveira, Fabio Luiz de. |
| Foi conduzido um estudo de campo no Sistema Integrado de Produção Agroecológica (S.I.P.A.) buscando estabelecer bases para o manejo orgânico da cultura do repolho na Baixada Metropolitana do estado do Rio de Janeiro. O estudo incluiu avaliações relacionadas ao uso de adubação verde, adubação com esterco de “cama” de aviário, plantio direto e consorciação com rabanete O primeiro experimento, conduzido de dezembro de 1999 à julho de 2000, foi delineado em blocos ao acaso, com quatro repetições, dentro de um esquema fatorial 2 x 4 Mudas de repolho foram transplantadas para covas diretamente abertas sobre a fitomassa roçada de Crotalaria juncea ou da vegetação espontânea (pousio). Doses crescentes de esterco de “cama” de aviário (0=controle, 12, 24 e 36 t/ha)... |
| Tipo: Thesis |
Palavras-chave: Production systems Farming Systems Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2001 |
URL: http://orgprints.org/24882/1/Oliveira_Manejo.pdf |
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| Salmi, Alexandre Porto. |
| Flemingia macrophylla e uma leguminosa arbustiva de origem asiatica, pouco explorada e utilizada no Brasil. A literatura destaca seu elevado potencial em diferentes sistemas agroflorestais em varias regioes tropicais do mundo. Este potencial tem sido demonstrado em nossas condicoes, tendo sido por isso escolhida esta especie para estudo. Dentre os objetivos deste estudo, destaca-se a avaliacao da rebrota de flemingia cultivada em faixas, a quantificacao da acumulacao de nitrogenio na parte aerea, bem como a avaliacao da dinamica de decomposicao de liberacao de nutrientes da folha, do caule e da combinacao de caule+folha. Para tanto, foi avaliada a capacidade da rebrota de flemingia apos cortes em diferentes alturas (0,0 m; 0,3 m; 0,6 m; 1,2 m do nivel do... |
| Tipo: Thesis |
Palavras-chave: Production systems Farming Systems Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/24950/1/Salmi_Utiliza%C3%A7%C3%A3o.pdf |
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| Jensen, Erik Steen; Peoples, Mark B.; Hauggaard-Nielsen, Henrik. |
| The grain legume/pulse faba bean (Vicia faba L.) is grown world-wide as protein source for food and feed and simultaneously faba bean offers ecosystem services such as N2 fixation and diversification of cropping systems. Even though the global average grain yield has almost doubled during the recent 50 years the area of faba beans has declined with 56% in the same period. This is especially the case for some of the former big producer countries such as China and Egypt. The yield season-to-season of faba bean and development of an industrialized agriculture based on fossil fuels (= N fertilizers, heavy mechanization) are some of the explanations for this development. Studies of faba bean in cropping systems have focussed on the effect of faba bean as a... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/18982/4/18982.pdf |
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| Pinho, Lucinéia de. |
| Avaliacao da qualidade fisico-quimica e sanitaria do tomate cereja e do milho verde, cultivados em sistemas de producao organico e convencional. As amostras de tomate foram obtidas de plantio conduzido na área experimental do Instituto de Ciencias Agrarias da UFMG, Montes Claros - MG. Foi utilizado o delineamento experimental inteiramente casualizado, com cinco repeticoes, sendo os tratamentos dispostos em esquema fatorial 2 x 2 , correspondentes a 2 epocas de colheita (30 e 45 dias apos o aparecimento dos primeiros frutos maduros) em 2 sistemas de cultivo (organico e convencional). As amostras do milho verde foram obtidas junto a EMBRAPA Milho e Sorgo, em Sete Lagoas/MG, na safra 2007/2008, tendo sido adotado o delineamento inteiramente casualizado com... |
| Tipo: Thesis |
Palavras-chave: Production systems Farming Systems Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2008 |
URL: http://orgprints.org/24928/1/Pinho_Qualidade.pdf |
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| Nyberg, Anna; Lindén, Börje. |
| Åkerbönor som förfrukt till vårsäd i ekologiskodling I åtta 3-åriga fältförsök i Västsverige, 2002-2006, har åkerbönors förfruktseffekt undersökts i två års efterföljande vårsäd. Det första året odlades havre, åkerböna som skördades och åkerböna som ej skördades utan hela grödan plöjdes ned. I två fältförsök fanns även motsvarande led med skördad och inte skördad ärt, dessa användes vid inkuberingsförsöket. Havren gödslades det första året med 72 kg NH4-N/ha i form av flytgödsel. Grödresterna av den skördade grödan och hela den inte skördade grödan plöjdes ned i mitten av oktober. Under det andra året odlades vårkorn och det tredje havre. Skördarna i alla försöksrutor mättes genom försökströskning. Vid mognad DC 91-92 klipptes tre 0,25 m2 stora ytor i... |
| Tipo: Report |
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2008 |
URL: http://orgprints.org/13071/1/porapp15.pdf |
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| Celette, Florian; Goulevant, Gael; Amosse, Camille; David, Christophe. |
| One of the key issues of organic arable systems is to increase use of N2 fixation from legume plants while enhancing autonomy by the limitation of off-farm inputs. Wheat yield in organic agriculture is generally low and variable. Grain yield and protein content are strongly affected by N deficiency and weed competition (Casagrande et al., 2009). Previous research had clearly demonstrated the benefits of forage legumes to improve N balance and preserve weed infestation (den Hollander et al., 2007). Several authors highlighted the interest of crop mixtures combining cereal and legumes to provide higher overall productivity, enhance ecological services and improve economical profitability (Malezieux et al., 2008). Nevertheless, previous research also... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/18891/1/Celette_2011_18891_conference_paper.pdf |
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| Registros recuperados: 18 | |
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