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| Registros recuperados: 4.506 | |
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| Klocke, P.; Ivemeyer, S.; Butler, G.; Maeschli, A.; Heil, F.. |
| Introduction: Routine use of antibiotics to prevent mastitis in dairy cows is prohibited by organic farming regulations. Internal Teat Sealers have been proposed as an alternative. We compared two drying-off (DO) supporting measures (Internal Teat Sealer and Homeopathy) to an untreated control group to assess their protective effects against clinical mastitis and intra-mammary infections during dry period of dairy cows. Methods: A field trial with 102 dairy cows from 13 Swiss organic dairy farms was conducted. Cows were randomly assigned to one of three groups within a herd. In the Internal Teat Sealer group (ITS; 36 cows) cows were treated with the commercial ORBESEAL (Pfizer) in all four quarters immediately after the last milking. In the Homeopathy... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Dairy cattle; Animal husbandry; Health and welfare. |
| Ano: 2010 |
URL: http://orgprints.org/17117/1/ |
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| Fernandes, Ivana Leila Carvalho. |
| Este trabalho trata da temática mulher e reforma agrária, e tem como objetivo compreender o tipo de participação que as mulheres rurais têm apresentado nas lutas pela conquista da terra e melhores condições de vida. O estudo foi realizado no Curso de Especialização em Agricultura Familiar Camponesa e Educação do Campo sobre a metodologia da pesquisa-ação. O trabalho apresenta referenciais teóricos e dados referentes a pesquisa realizada em um assentamento rural do Ceará. Percebemos que a participação da mulher é presente e tem importante significado nos acontecimentos que representam a luta pela conquista da terra, bem como sua presença nas etapas de constituição e organização do assentamento. A questão é que as agricultoras apresentam uma profunda... |
| Tipo: Journal paper |
Palavras-chave: Social aspects. |
| Ano: 2009 |
URL: http://orgprints.org/25048/1/Fernandes_Realidade.pdf |
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| Martins , José de Souza. |
| Já no primeiro mandato do presidente Fernando Henrique Cardoso, a política agrária sofreu reorientações significativas, que marcariam seu segundo mandato, a partir da nomeação de Raul Jungmann como ministro do Desenvolvimento Agrário. A reforma agrária finalmente encontrou o seu sujeito, a agricultura familiar, e o Estado encontrou a sua missão agrária como gestor do território. Foram assim estabelecidas as bases concretas para o exercício da função social da propriedade, recuperando o Estado, na prática, o domínio eminente do território do país. Importante providência nesse sentido foi a anulação dos títulos irregulares de propriedade de sessenta milhões de hectares de terra. O governo firmou a prerrogativa do Estado de "rotinizar" a redistribuição da... |
| Tipo: Journal paper |
Palavras-chave: Farm economics; Farming Systems; Social aspects; Policy environments and social economy. |
| Ano: 2003 |
URL: http://orgprints.org/22755/1/Martins_Reforma.pdf |
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| Alencar, Maria de Cléofas Faggion; Abreu, Lucimar Santiago de. |
| Este trabalho é resultado de uma parceria entre a biblioteca e o setor de PD&I da Embrapa Meio Ambiente onde, através da aplicação do método de análise de conteúdo em artigos publicados pela Revista Agriculturas, buscou-se entender qual é o lugar e importância das mulheres, a percepção ou visão dos autores sobre a contribuição das mulheres e as principais atividades que elas desenvolvem. A grande parte dos artigos mostra que as mulheres atuam diretamente em atividades produtivas e em particular em atividades especificas, na unidade de produção e no artesanato, além de outras funções igualmente importantes. Elas têm tido sensibilidade para trabalhar respeitando os princípios da Agroecologia, cujas práticas se expressam nas atividades desenvolvidas na... |
| Tipo: Journal paper |
Palavras-chave: Social aspects. |
| Ano: 2011 |
URL: http://orgprints.org/22884/1/ArelacaoDaMulherEaTerra...pdf |
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| Mattei, Lauro. |
| O fenômeno da pluriatividade passou a ser mais estudado no Brasil na década de 1990, quando foram publicados trabalhos em todas as regiões do país. Um dos elementos centrais desta discussão diz respeito à unidade de análise relevante para se analisar a complexidade desse fenômeno. Em consonância com a literatura internacional, este artigo defende a idéia de que a família, e não a unidade de produção, deve ser o elemento balizador de estudos sobre a pluriatividade na agricultura familiar brasileira. |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Soil; Environmental aspects. |
| Ano: 2007 |
URL: http://orgprints.org/22754/1/Mattei_Relev%C3%A2ncia.pdf |
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| Watson, C.A.; Bengtsson, H.; Ebbesvik, M.; Loes, A-K.; Myrbeck, A.; Salomon, E.; Schroder, J.; Stockdale, E.A.. |
| On organic farms, where the importation of materials to build/maintain soil fertility is restricted, it is important that a balance between inputs and outputs of nutrients is achieved to ensure both short-term productivity and long-term sustainability. This paper considers different approaches to nutrient budgeting on organic farms and evaluates the sources of bias in the measurements and/or estimates of the nutrient inputs and outputs. The paper collates 88 nutrient budgets compiled at the farm scale in 9 temperate countries. All the nitrogen (N) budgets showed an N surplus (average 83.2 kg N ha-1 year-1). The efficiency of N use, defined as outputs/inputs, was highest (0.9) and lowest (0.2) in arable and beef systems respectively. The phosphorus (P) and... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil quality. |
| Ano: 2002 |
URL: http://orgprints.org/8061/2/Watson_orgrpints_8061.pdf |
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| Bodapati, Subrahmanyeswari; Chander, Mahesh. |
| Organic farming an innovative area gaining importance worldwide and became a boon to the areas which are organic by default and far from the reach of green revolution technologies. Uttarakhand state in India, where most of its farming is organic by default, promoting organic farming in a systematic way through creation of special institutions like UOCB. As attitudes assist individuals in processing complex information and to make decisions, an instrument has been developed to measure attitude of organic farmers towards organic livestock farming, for which ‘Likert method of summated ratings’ was followed. A total of 102 statements were developed from the subject matter of organic animal husbandry standards, worked out by the Ministry of Commerce and... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Farming Systems; Animal husbandry; Social aspects. |
| Ano: 2008 |
URL: http://orgprints.org/24263/3/24263.pdf |
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| David, Christophe; Jeuffroy, Marie-Hélène. |
| Advances in scientific understanding of the plant and soil behaviour in a cultivated field led to the design of numerous soil-crop models simulating crop growth. The frequent low predictive quality of these models is linked to uncertainties in inputs, parameters and equations. The AZODYN crop model predicting wheat grain yield and grain protein content was previously developed to support decision for N management of conventional and organic wheat crops. This paper outlines a sequential approach to improve the predictions of the AZODYN model by testing various formalisms. This study is based on the comparison of 38 versions of the model assessed in multi-environment trials carried out under conventional or low-input conditions. This paper describes and... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2009 |
URL: http://orgprints.org/19494/1/David_et_Jeuffroy%2C_2009.pdf |
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| Tasser, Erich; Rüdisser, Johannes; Plaikner, Michaela; Wezel, Alexander; Stöckli, Sibylle; Vincent, Audrey; Nitsch, Heike; Dubbert, Monika; Moos, Valerie; Walde, Janette; Bogner, Daniel. |
| Farmers are important actors for regional development and biodiversity protection. Agri-environment-climate measures (AECM) are therefore a central tool of the European Union to support its biodiversity conservation policy. AECM generally reward farmers for fulfilling predefined management actions or avoiding specific practices. In contrast, result oriented AECM are intended to reward farmers for the outcome of nature friendly management practices. This approach gives more flexibility in management and hence promotes farmers engagement and autonomy. Besides educational activities and agricultural advisory services farmers need user friendly tools to assess biodiversity in order to meet result oriented AECM. Thus, we present a biodiversity assessment scheme... |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services; Landscape and recreation. |
| Ano: 2019 |
URL: http://orgprints.org/36372/1/1-s2.0-S1470160X19306417-main.pdf |
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| Oleskowicz-Popiel, Piotr; Thomsen, Mette Hedegaard; Thomsen, Anne Belinda; Schmidt, Jens Ejbye. |
| In order to evaluate new strategies for the production of renewable energy within sustainable organic agriculture, a process-simulation model for a 100 ha organic farm was developed. Data used for the model was obtained from laboratory trials, literature data, consultancy with experts, and results from the BioConcens project (http://www.bioconcens.elr.dk). Different design approaches were evaluated in order to establish the most suitable configuration. Rye grains, clover grass silage, maize silage, whey and cattle manure were selected as raw materials for co-production of fuels, feed and fertilizer at the organic farm, based on the fact that crops grown in organic agriculture act as key carbon sources whereas manure and whey were applied primarily as the... |
| Tipo: Journal paper |
Palavras-chave: Technology assessment; Post harvest management and techniques. |
| Ano: 2009 |
URL: http://orgprints.org/19015/4/19015.pdf |
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| Kahiluoto, Helena. |
| Helena Kahiluoto granskar i sin doktorsavhandling möjligheterna att bevara den ekosystemtjänst som mykorrhizans funktion utgör och stödja sig på utnyttjandet av denna i en hållbar fosforhushållning. I avhandlingen, som är den första doktorsavhandlingen inom ekologisk odling i Finland, undersöktes också den metodologiska frågan om "systemansatsens" (system approach) utmaningar. |
| Tipo: Journal paper |
Palavras-chave: Farming Systems. |
| Ano: 2001 |
URL: http://orgprints.org/4089/1/4089.pdf |
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| Holst, Niels. |
| To most modellers, ecological models are primarily about ecology. A model is a condensed summary of an ecosystem written in the language of mathematics and logic. While modellers with a mathematical inclination may prefer stringent model formulations, that allow formal mathematical analysis, most modellers in ecology prefer heterogeneus, composite models permitting only numerical analysis; they are computational modellers who implement their models in software, which then itself becomes both tool and object in the ensuing analysis. The design and implementation details of this software is largely neglected. But this paper is only about this: the proper design and implementaion of ecological models. |
| Tipo: Journal paper |
Palavras-chave: Systems research and participatory research. |
| Ano: 2012 |
URL: http://orgprints.org/20632/7/20632.pdf |
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| Hansen, Preben Klarskov; Willas, Jakob; Kristensen, Kristian. |
| A screening programme for crop variety competitiveness would ideally be based on only a few, non-destructive measurements of key growth traits. In this study we measured the weed suppressive ability of 79 varieties of spring barley in two ways: 1) directly, by weed coverage assessments under weedy conditions at three Danish locations in 2002-2004, and 2) indirectly, by non-destructive measurements of varietal growth traits under weed-free conditions in 17 other experiments in Denmark in 2001-2003. Based on just four varietal growth traits (reflectance, leaf area index, leaf angle and culm length), we successfully developed a method for indexing the weed suppressive ability of spring barley varieties. The suppressive index ranged from 12% in ‘Lux’ and 55%... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions Weed management Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/11294/2/11294.pdf |
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| Paull, John; Hennig, Benjamin. |
| This paper presents a world map of organic agriculture. A Gall-Peters projection map of the world is taken as the reference map (where map areas are proportional to territorial areas). Applying the area of organic agriculture to countries, the World Map of Organic Agriculture presents countries as proportional in size to their share of the total of world organic hectares (such a map can be referred to as an equal-area cartogram or a densityequalising map). The World Map of Organic Agriculture accounts for 37.2 million hectares of organically managed agricultural land (certified organic and in-conversion organic) from 160 countries, and here distributed across the 200 territories of the reference map. The World Map of Organic Agriculture visually reveals... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Farming Systems; World. |
| Ano: 2011 |
URL: http://orgprints.org/19535/1/Paull%26Hennig2011EJSS.pdf |
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| Helin, Janne; Laukkanen, Marita; Koikkalainen, Kauko. |
| Designing efficient agri-environmental policies for agricultural nutrient load reductions calls for information on the costs of emission reduction measures. This study develops an empirical framework for estimating abatement costs for nutrient loading from agricultural land. Nitrogen abatement costs and the phosphorus load reductions associated with nitrogen abatement are derived for crop farming in south-western Finland. The model is used to evaluate the effect of the Common Agricultural Policy reform currently underway on nutrient abatement costs. Results indicate that an efficiently designed policy aimed at a 50% reduction in agricultural nitrogen load would cost € 48 to € 35 million, or € 3756 to € 2752 per farm. |
| Tipo: Journal paper |
Palavras-chave: Air and water emissions. |
| Ano: 2006 |
URL: http://orgprints.org/16761/1/helin.pdf |
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| Braun, Philipp; Kreuzer, Sepp; Bartel-Kratochvil, Ruth; Leitner, Heidrun. |
| Die Nachfrage nach biologischen und regionalen Lebensmittel steigt stetig an. Wer zu Hause Wert auf möglichst frisches, gesundes und nachhaltig produziertes Essen legt, der nimmt sicher auch dementsprechende Angebote in der Gastronomie begeistert an. Trotzdem gibt es bisher nur wenige Kooperationen zwischen der Biolandwirtschaft und der örtlichen Gastronomie. Um den Ursachen dafür auf den Grund zu gehen, hat das Institut für ökologischen Landbau an der Universität für Bodenkultur in Wien eine ausführliche Umfrage unter Gastronomen durchgeführt. Die Ergebnisse zeigen ein komplexes Zusammenspiel aus innerer Überzeugung, Küchenmanagement, Lieferantenbeziehungen und Kommunikation mit den Gästen auf - und machen all jenen Mut, die sich auf das Abenteuer... |
| Tipo: Journal paper |
Palavras-chave: Markets and trade; Produce chain management. |
| Ano: 2008 |
URL: http://orgprints.org/16658/1/Druckfahne_BioNachrichten.pdf |
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| Laber, H.; Baumgarten, B.; Stützel, H.; Wonneberger, C.. |
| Einleitung: Für den ökologischen Anbau von Säzwiebeln ist das Abflammen ein wesentliches Glied in der Kette der Maßnahmen zur Unkrautregulation, ohne das ein großflächiger Anbau nicht denkbar wäre. Anders als bei der Möhre und anderen Arten, bei denen das Abflammen vor Auflauf der Kultur durchzuführen ist, sind bei Zwiebeln auch Behandlungen im Nachauflauf möglich. In der Praxis taucht aber immer wieder die Frage auf, bis zu welchem Entwicklungsstadium das Abflammen erfolgen kann, ohne die Pflanzen nachhaltig zu schädigen. Im Rahmen einer Diplomarbeit (LABER 1990) wurden die Auswirkungen unterschiedlicher Abflammtermine bei Säzwiebeln näher untersucht. Fazit: - Abflammbehandlungen im Nachauflauf der Zwiebeln reduzieren den Aufwand beim ersten... |
| Tipo: Journal paper |
Palavras-chave: Vegetables; Weed management. |
| Ano: 1999 |
URL: http://orgprints.org/1218/1/1218%2Dlaber%2Dh%2Det%2Dal%2D1999%2Dsaezwiebeln.pdf |
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| Hammelehle, Andreas; Oberson, Astrid; Lüscher, Andreas; Mäder, Paul; Mayer, Jochen. |
| Aims Belowground legume nitrogen (N) composed of roots and rhizodeposition is an important N input to soils, but published data of belowground N vary broadly, probably due to extrapolation from short-term experiments and dissimilar growing conditions. We quantified belowground N inputs of red clover (Trifolium pratense L.) during two consecutive years in a clover-grass sward along a soil nutrient availability gradient. Methods We established a red clover-perennial ryegrass (Lolium perenne L.) model sward in microplots located in field plots of the DOK experiment, which has a 33-year history of organic and conventional cropping, resulting in a soil nutrient availability gradient. Four treatments were examined: the zero fertilisation control, bio-organic... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Composting and manuring. |
| Ano: 2018 |
URL: http://orgprints.org/34924/1/hammelehle-etal-2018-PlantSoil-Vol425-Issue1-2-p507-525.pdf |
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| Registros recuperados: 4.506 | |
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