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Registros recuperados: 17
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Adapting precision farming principles to organic crop production Organic Eprints
David, C..
Precision farming is a discipline that aims to increase efficiency in the management of agriculture throughout new technologies. Organic crop production systems in the future need to combine satisfactory productivity with long term sustainability. The aim of this paper is to present potentials and limits using precision farming priciples in organic crop production
Tipo: Conference paper, poster, etc. Palavras-chave: Production systems.
Ano: 2006 URL: http://orgprints.org/9057/1/9057.pdf
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Agroecology as a science, a movement and a practice. A review Inra
Wezel, A.; Bellon, S.; Doré, T.; Francis, C.; Vallod, D.; David, C..
Agroecology involves various approaches to solve actual challenges of agricultural production. Though agroecology initially dealt primarily with crop production and protection aspects, in recent decades new dimensions such as environmental, social, economic, ethical and development issues are becoming relevant. Today, the term `agroecology' means either a scientific discipline, agricultural practice, or political or social movement. Here we study the different meanings of agroecology. For that we analyse the historical development of agroecology. We present examples from USA, Brazil, Germany, and France. We study and discuss the evolution of different meanings agroecology. The use of the term agroecology can be traced back to the 1930s. Until the 1960s...
Tipo: Journal Article Palavras-chave: SYSTEME ALIMENTAIRE; AGROECOLOGIE; DISCIPLINE SCIENTIFIQUE FOOD SYSTEM; RURAL DEVELOPMENT; SCIENTIFIC DISCIPLINE; SUSTAINABLE AGRICULTURE; BRAZIL; GERMANY.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009ce371bd6&uri=/notices/prodinra1/2010/06/
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Agronomical techniques to improve technological and sanitary quality Organic Eprints
David, C.; Celette, F.; Abecassis, J.; Carcea, M.; Dubois, D.; Friedel, J.K.; Hellou, G.; Jeuffroy, M.H.; Mäder, P.; Thomsen, I.K..
In spite of variable grain protein contents, baking quality of organic wheat was found to be acceptable to good. Mycotoxin (DON) infestation was generally low on tested grain samples. Choice of wheat cultivar was the most efficient way to obtain higher grain quality. Fertilization with readily available nitrogen and, to a lower extent, association with legumes and green manures with mixtures containing fodder legumes also improved grain quality. Reduced tillage affected soil quality and wheat yield but had little effects on grain quality.
Tipo: Report Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds.
Ano: 2012 URL: http://orgprints.org/21100/1/AGTEC_farmers_leaflet_Final_VJune12.pdf
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AGTEC-Org Organic Eprints
David, C..
Agronomical and technological methods to improve organic wheat quality.
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general.
Ano: 2011 URL: http://orgprints.org/20098/1/COI_AGTEC_ORG_Christophe_David.pdf
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Co-designing farming systems and decision support tools : a generic framework Inra
Cerf, M.; Thiery, O.; Mathieu, A.; Beguin, P.; Brives, H.; Casagrande, M.; David, C.; Debaeke, P.; Jeuffroy, M.H.; Lecomte, P.; Nozieres, M.O.; Parnaudeau, V.; Prost, L.; Reau, R.; Roche, B.; Sabourin, E.; Scopel, É.; De Tourdonnet, S.; Triomphe, B.; Vayssières, J..
Tipo: Conference Paper Palavras-chave:  SCIENCES SOCIALES; PARTICIPATION; REFLEXIVITE; CADRE CONCEPTUEL  MODELLING; PARTICIPATION; CO-DESIGN; REFLEXIVITY; CONCEPTUAL FRAMEWORK; INTRODUCTION.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20116f37713c&uri=/notices/prodinra1/2011/03/
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Crustal seismicity and active tectonics in the Arica bend forearc IRD
David, C.; Audin, Laurence; Comte, D.; Tavera, H.; Hérail, Gérard.
Tipo: Text Palavras-chave: ARC VOLCANIQUE; SUBDUCTION; MARGE CONTINENTALE ACTIVE; SISMOLOGIE; FAILLE; ANALYSE DE DONNEES.
Ano: 2005 URL: http://www.documentation.ird.fr/hor/fdi:010040208
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Développer les propriétés de flexibilité des systèmes de production agricole en situation d'incertitude : pour une durabilité qui dure Inra
Ingrand, S.; Astigarraga, L.; Chia, E.; David, C.; Coquil, X.; Fiorelli, J.L..
Cet article a pour objet de présenter l'intérêt de la notion de flexibilité, largement étudiée en sciences de gestion, pour analyser la capacité des systèmes d'élevage à faire faire aux aléas et à se pérenniser en situation d'incertitude. L'objectif est de combiner l'analyse des propriétés des composantes biologiques du système sous l'effet de la conduite et des leviers mobilisés par les éleveurs pour faire face aux aléas d'ordre climatique ou économiques. Des exemples de transposition sont donnés en élevage et en production végétale. Ce travail est un des résultats du projet ADD Discotech (2005-2009).
Tipo: Conference Paper Palavras-chave: FLEXIBILITÉ .
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20095e42477a&uri=/notices/prodinra1/2011/02/
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Estimation of genetic trends from 1977 to 1998 of body composition and physiological state of Large White pigs at birth Inra
Canario, L.; Pere, M.C.; Tribout, T.; Thomas, F.; David, C.; Gogué, J.M.; Herpin, P.; Bidanel, J.P.; Le dividich, J..
Tipo: Journal Article Palavras-chave: Birth; Blood plasma; Body composition; Genetic trends; Piglets.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007fc8f9911&uri=/notices/prodinra1/2008/02/
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Estimation, par utilisation de semence congelée, des effets de la sélection réalisée entre 1977 et 1998 dans la population Large White sur la composition corporelle et l'état physiologique du porc nouveau-né Inra
Canario, L.; Tribout, T.; Thomas, F.; David, C.; Gogué, J.; Herpin, P.; Bidanel, J.P.; Père, M.C.; Le Dividich, J..
Tipo: Conference Paper Palavras-chave: COMPOSITION CORPORELLE; RACE PORCINE LARGE WHITE; PORCELET; NAISSANCE.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20077ddda80c&uri=/notices/prodinra1/2007/12/
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Geometry of subduction and depth of the seismogenic zone in the Guerrero gap, Mexico IRD
Suarez, G.; Monfret, Tony; Wittlinger, G.; David, C..
L'étude sismique de la zone côtière de Guerrero (Mexique) permet d'interpréter la géométrie de la subduction dans cette région
Tipo: Text Palavras-chave: SEISME; SISMOLOGIE; SUBDUCTION; FOSSE OCEANIQUE; LITHOSPHERE; TECTONIQUE DE PLAQUES; MECANISME AU FOYER; HYPOCENTRE.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:31928
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Logiques et modes de coordination d’entreprises, perspectives d’évolution d’un marché en développement : le cas du secteur céréalier en agriculture biologique dans deux régions Pays de La Loire et Rhône Alpes Organic Eprints
Sylvander, Bertil; Schieb-Bienfait, Nathalie; Roque, Olivier; Neyrat, S.; David, C..
La remise en cause du modèle fordiste de l’agriculture européenne, fondée sur une contestation sociale de ses excès et de ses dérives, a conduit au cours des années 1980-90 à une légitimation d’alternatives, qui étaient souvent apparues au cours des décennies précédentes. Une convention sociale s’est progressivement développée autour de la prise en compte des problèmes sociétaux liés à ce modèle de développement : dégradation du goût des produits, présence de résidus de pesticides et de nitrates dans les sols, les eaux et l'alimentation, atteintes au bien être animal, dégradation des paysages, inquiétude sur la biodiversité et le réchauffement de la planète, etc…Bref, les analyses et les valeurs du courant écologiste, longtemps confinés à une petite...
Tipo: Conference paper, poster, etc. Palavras-chave: Social aspects; Farm economics.
Ano: 2005 URL: http://orgprints.org/6720/1/communication_PSDR_Bio_%2D_PDLL_%2D_RA_%2D_version_FINALE%2D_6oct05.pdf
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Nitrogen management of organic winter wheat Decision-making through model-based explorations Organic Eprints
David, C.; Jeuffroy, M.H.; Meynard, J.M..
In organic wheat, nitrogen is one of the key limiting factors responsible for irregular productivity and low quality (David et al, 2005b), 5 to 50 % less than conventionally managed crops (Nieberg and Schulze Pals, 1996). On arable farms, the decreasing use of N-organic sources such as forage legumes, manures and composts relative to mixed-farms requires the development of suitable fertility strategies based on the use of off-farm organic fertilizers. Numerous mechanistic crop models simulating the dynamics of crop requirements and N supply in the soil (e.g. CERES, EPIC, APSIM, ARCWHEAT STICS) have previously been developed (Whisler et al, 1996). Although these models are highly used in research, their complexity and input requirements have limited their...
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds.
Ano: 2005 URL: http://orgprints.org/4215/4/4215%2DDavid_etal_4p_revised%2Ded.pdf
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Organic Bread Wheat Production and Market in Europe Organic Eprints
David, C.; Abecassis, J.; Carcea, M.; Celette, F.; Friedel, J.K.; Hellou, G.; Hiltbrunner, J.; Messmer, M.; Narducci, V.; Peigné, J.; Samson, M.-F.; Schweinzer, A.; Thomsen, I.K.; Thommen, A..
This chapter is a first attempt to analyse bottlenecks and challenges of European organic bread wheat sector involving technical, political and market issues. From 2000, the organic grain market has largely increased in Western Europe. To balance higher consumer demand there is a need to increase organic production by a new transition and technical improvement. Bread wheat is grown in a variety of crop rotations and farming systems where four basic organic crop production systems have been defined. Weeds and nitrogen deficiency are considered to be the most serious threat inducing lowest grain yield under organic production. The choice of cultivar, green manure, fertilization and intercropping legumes – grain or forage – are efficient ways to obtain high...
Tipo: Book chapter Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Markets and trade.
Ano: 2012 URL: http://orgprints.org/26365/1/David_etal_2013_SAR.pdf
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Techniques to improve technological and sanitary quality Organic Eprints
David, C.; Celette, F.; Abecassis, J.; Carcea, M.; Dubois, D.; Friedel, J.K.; Hellou, G.; Jeuffroy, M.-H.; Mäder, P.; Thomsen, I. K..
Agronomical ways for better quality and safety Choice of cultivar is an efficient way to obtain higher grain quality. Intercropping legumes (grain or forage) improves weed competition and N availability for wheat crop or succeeding crop. Green manure can be an effective alternative to farmyard manure. Fertilization with readily available nitrogen improves yield and quality when water is available. Reduced tillage affects soil fertility and wheat yield but has little effects on grain quality. Technological ways for better quality and safety Milling process strongly influences flour characteristics. Stone milling improves nutritive value; characteristics remain very stable independent of the milling yield. Flour characteristics from roller milling...
Tipo: Report Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds.
Ano: 2012 URL: http://orgprints.org/20851/1/AGTEC_general_leaflet__FVMarch12.pdf
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Techniques to improve technological and sanitary quality Organic Eprints
David, C.; Celette, F.; Abecassis, J.; Carcea, M.; Dubois, D.; Friedel, J. K.; Hellou, G.; Jeuffroy, M.-H.; Mäder, P.; Thomsen, I. K..
The demand for high quality organic bread cereals is increasing. In spite of variable grain protein contents, baking quality of organic wheat was found to be acceptable to good. Mycotoxin (DON) contents were generally low on tested grain samples. Choice of the wheat cultivar is the most efficient way to obtain higher grain quality. Fertilization with readily available nitrogen and, to a lower extent, association with legumes and green manuring with mixtures containing fodder legumes can also improve grain quality. Reduced tillage affects soil quality and wheat yield but has little effects on grain quality.
Tipo: Report Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2012 URL: http://orgprints.org/20850/1/AGTEC_farmers_leaflet_v3March12.pdf
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Technological quality of organic wheat in Europe Organic Eprints
David, C.; Celette, F.; Abecassis, J.; Carcea, M.; Dubois, D.; Friedel, J. K.; Hellou, G.; Jeuffroy, M.-H.; Mäder, P.; Thomsen, I. K..
The demand for high quality organic bread wheat is increasing. The quality level of organic wheat harvested in EU is mainly dependant on variety, environmental conditions and agronomic practices. In some countries, protein content and composition, influencing technological value, are equivalent to those produced under conventional practices. Beside agronomical techniques, technological processes can help to maintain a good quality. Pre-treatments before milling such as debranning were found to be efficient in reducing DON contamination. The project highlighted the necessity to redefine the methods to assess the quality of organic wheat.
Tipo: Report Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds.
Ano: 2012 URL: http://orgprints.org/20852/1/AGTEC_technological_leaflet_April_12FV.pdf
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Wheat yield and quality as influenced by reduced tillage in organic farming Organic Eprints
Peigné, J.; Messmer, M.; Aveline, A.; Berner, A.; Mäder, P.; Carcea, M.; Narducci, V.; Samson, M.-F.; Thomsen, I.K.; Celette, F.; David, C..
Organic farmers are interested in soil conservation by reduced tillage, techniques well known in conventional agriculture to protect soil quality and limit labor time and energy costs. However, organic farming and reduced tillage can modify weeds, soil structure, and thus soil nitrogen (N) mineralization which strongly influences wheat yield and quality. The main objectives of this study were to analyze how reduced tillage applied to organic wheat influenced (1) grain yield, protein concentration, and weed infestation; (2) deoxynivalenol (DON) contamination on grain; (3) technological quality parameters such as dry gluten, zeleny index, falling number, and gluten index; (4) protein composition (F1, F2, F3, F4, and F5 fractions, and UPP, gliadin/glutenin...
Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds Soil tillage.
Ano: 2014 URL: http://orgprints.org/26366/1/Peign%C3%A9_etal_2013_OA.pdf
Registros recuperados: 17
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