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Registros recuperados: 11
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AGTEC-Org Agronomy Handbook of Methods Organic Eprints
Celette, Florian; Peigne, Joséphine; Thomsen, Ingrid Kaag; Carcea, Marina; Aveline, Anne; Hellou, Guénaëlle; Mäder, Paul; Hiltbrunner, Jürg; Mayer, Jochen; Dubois, David; Thommen, Andreas; Schweinzer, Agnes; Friedel, Juergen K.; David, Christophe.
A common handbook was conceived in the CORE Organic AGTEC-Org project in order to give some elements of field trial monitoring.
Tipo: Working paper Palavras-chave: Crop combinations and interactions Composting and manuring Soil tillage Soil Crop health; Quality; Protection Weed management.
Ano: 2008 URL: http://orgprints.org/16461/1/AGTEC_Agronomy_Handbook_of_Methods.pdf
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Associating wheat crop and undersown forage legumes in organic agriculture: Incidence of forage legumes species Organic Eprints
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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Effects of sampling and extraction on deoxynivalenol quantification Organic Eprints
Hallier, Arnaud; Celette, Florian; David, Christophe.
Deoxynivalenol was extracted from wheat grain and quantified by GC-ECD. The quantification of deoxynivalenol can be critical, for example in certifying the amount of the mycotoxin in a lot and determining if this amount is over or under a fixed limit. Thus, an objective was to obtain representative samples to monitor DON quantification variability. We show that among the different steps of analysis the critical one is grain sampling. We also show that we were able to significantly improve the extraction rate without increasing the variability by using a longer extraction time with a magnetic agitator, and a grinding process which takes into account both the heterogeneous repartition of deoxynivalenol within wheat grains and different extraction rates...
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Produce chain management.
Ano: 2011 URL: http://orgprints.org/18893/2/Hallier_et_al.pdf
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Improving baking quality, nutritional value and safety of organic winter wheat / Améliorer la qualité technologique, nutritionnelle et sanitaire du blé biologique, Principaux leviers agronomiques et technologiques Organic Eprints
David, Christophe; Abecassis, Joël; Carcea, M.; Celette, Florian; Corre-Hellou, Guénaëlle; Friedel, J.; Hiltbrunner, J.; Mäder, Paul; Messmer, Monika; Narducci, V.; Peigne, Joséphine; Thomsen, I. K..
The organic bread wheat market has been diversified over time through the emergence of different sale channels. Processors require organic bread wheat of higher quality and safety in order to meet the consumers’ demand. The overall objective of the AGTEC-Org project was to identify agronomical and technological ways to improve the performance of organic wheat and flour. The findings would contribute to enhanced baking quality and nutritional value of organic flour, as well as prevention of mycotoxin contamination. The project involved 9 research centers or universities from 5 European countries for a total budget of about 1.5 million €. More than 400 experimental treatments were analyzed from 23 agronomic trials and 4 lab-experiments on food technology....
Tipo: Journal paper Palavras-chave: Crop combinations and interactions Food security; Food quality and human health Composting and manuring Processing; Packaging and transportation.
Ano: 2013 URL: http://orgprints.org/26013/1/David_2013_CIAG_Vol32.pdf
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Incidence of soil N fertility on the performance of organic forage legume-wheat mixtures. Organic Eprints
Celette, Florian; Goulevant, Gael; Amosse, Camille; David, Christophe.
One of the key issues of organic arable systems is to bring enough nitrogen in the crop rotation to ensure satisfying crop nutrition. Wheat yield in organic agriculture are generally low and variable. Grain yield and grain protein content are strongly affected by N deficiency and weed competition (Casagrande et al., 2009). Nevertheless, the autonomy of the organic cropping systems has to be improved while off-farm inputs have to be limited. The use of N2 fixation from legume plants should then be improved. Previous research had clearly demonstrated the benefits of forage legumes in association to improve N balance and control weed seed bank. However, it is also well known that legume N2 fixation could be limited depending on the soil N fertility. The...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Farm nutrient management.
Ano: 2010 URL: http://orgprints.org/18892/1/Celette_2011_18892_paper.pdf
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Les CIMS pour améliorer la productivité en Agriculture Biologique dans les systèmes de culture assolés Organic Eprints
Charles, Raphael; Wendling, Marina; Büchi, Lucie; Casagrande, Marion; Celette, Florian; Fontaine, Laurence; Jouany, Claire.
Les cultures intermédiaires multi services, ou CIMS, jouent un rôle essentiel en agriculture biologique (AB) du fait des nombreux services écosystémiques qu’elles peuvent rendre. La capacité des CIMS à apporter des nutriments à la culture suivante est particulièrement intéressante en AB en raison de la faible disponibilité en engrais. Les CIMS visent également de maintenir la teneur en matière organique des sols essentielle à leur fertilité en compensant les exportations des récoltes. Elles représentent aussi un moyen de lutte efficace contre les bioagresseurs, en particulier les adventices, par une compétition directe pour les ressources ou par des modifications du milieu de croissance. Le contrôle des maladies et ravageurs par les CIMS se fait...
Tipo: Journal paper Palavras-chave: Crop husbandry.
Ano: 2017 URL: http://orgprints.org/33973/1/Charles_2018_Les%20CIMS%20pour%20ameliorer%20la%20productivite%20en%20AB%20dans%20les%20systemes%20de%20cultures%20assoles.pdf
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Management of service crops for the provision of ecosystem services in vineyards: A review Organic Eprints
Garcia, Léo; Celette, Florian; Gary, Christian; Ripoche, Aude; Valdés-Gómez, Hector; Metay, Aurélie.
Service crops are crops grown with the aim of providing non-marketed ecosystem services, i.e. differing from food, fiber and fuel production. Vineyard soils face various agronomic issues such as poor organic carbon levels, erosion, fertility losses, and numerous studies have highlighted the ability of service crops to address these issues. In addition to their ability to increase soil organic matter and fertility, and reduce runoff and erosion processes, service crops provide a large variety of ecosystem services in vineyards such as weed control, pest and disease regulation, water supply, water purification, improvement of field trafficability and maintenance of soil biodiversity. However, associating service crops with grapevines may also generate...
Tipo: Journal paper Palavras-chave: Crop combinations and interactions; Biodiversity and ecosystem services; Weed management; Viticulture.
Ano: 2018 URL: http://orgprints.org/32204/1/Garcia2018_Service_crops_review_POSTPRINT.pdf
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New challenges to improve organic bread wheat production in Europe Organic Eprints
David, Christophe; Celette, Florian; Abecassis, Joël; Carcea, Marina; Friedel, Jürgen K.; Corre-Hellou, Guénaëlle; Hiltbrunner, Jürg; Messmer, Monika; Peigne, Joséphine; Samson, Marie-Françoise; Schweinzer, Agnes; Thomsen, I.K.; Thommen, Andreas.
The total organic area in the EU-27 had an annual average growth rate of nearly 15% from 1998 to 2006 with winter wheat being the most important cereal crop. Wheat yield in organic farming is around 30% to 70% of yield of conventional farming but higher premia for organic wheat may to some extent compensate for this. Bread wheat is grown in a variety of crop rotations and farming systems and four basic organic crop production systems have been defined. Nitrogen deficiency and weed infestation are considered to be the most serious threat in organic wheat production. Organic wheat producers will have to fulfil the technological needs of bakers although the requirements differ widely from small artisan bakers to large enterprises handling the organic bread...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds.
Ano: 2011 URL: http://orgprints.org/19483/1/OWBread_ISOFAR2011_David_et_al2011.pdf
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PLANT BASED-DIVERSITY PRACTICES IN CONVENTIONAL AND ORGANIC FARMING: A FARMERS’ SURVEY IN FRANCE Organic Eprints
Casagrande, Marion; Alletto, Lionel; Naudin, Christophe; Seassau, Célia; Siah, Ali; Celette, Florian.
Enhancing plant-based diversity within agroecosystems may be an efficient way to achieve the objective of designing more resilient and low-input agricultural systems. The objectives of this study were (i) to describe the plant-based diversity practices implemented in organic or conventional agriculture in France and (ii) to identify the motivations of the farmers to apply such practices. It was also to compare the integration of such practices in organic or conventional farming systems. The survey was carried out in five French regions with 196 farmers that apply at least one plant-based diversification practice. Five diversification practices were studied: diversified crop rotations, use of catch crops, simultaneous intercropping, agroforestry and...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Social aspects; Biodiversity and ecosystem services; France.
Ano: 2014 URL: http://orgprints.org/23820/1/23820_Casagrande_MM.pdf
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REDUCED TILLAGE AND COVER CROPS IN ORGANIC ARABLE SYSTEMS PRESERVES WEED DIVERSITY WITHOUT JEOPARDISING CROP YIELD Organic Eprints
Barberi, Paolo; Aendekerk, Raymond; Antichi, Daniele; Armengot, Laura; Berner, Alfred; Bigongiali, Federica; Blanco-Moreno, José Manuel; Carlesi, Stefano; Celette, Florian; Chamorro, Lourdes; Crowley, Oliver; Döring, Thomas; Grosse, Meike; Haase, Thorsten; Hess, Jürgen; Huiting, Hilfred; José-Maria, Laura; Klaedtke , Stéphanie; Kranzler, Andreas; Luik, Anne; Peigne, Joséphine; Sukkel, Wijnand; Surböck, Andreas; Talgre, Liina; Sans, Francesc Xavier.
One of the objectives of the TILMAN-ORG Project is to improve weed management under conservation agriculture (reduced tillage and/or cover crops) in organic arable systems. The shift from ploughing to conservation agriculture should not only maintain crop yield but possibly improve weed community diversity. This paper summarises the results on (1) weed abundance, (2) weed diversity and (3) crop yield obtained in the first year of the project (2012) in 13 trials scattered across Europe.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Crop combinations and interactions; Soil tillage; Biodiversity and ecosystem services; Weed management.
Ano: 2014 URL: http://orgprints.org/24158/1/24158_MM.pdf
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Wheat/forage legume intercropping in organic grain system: an answer to both weed and nitrogen deficiency issues Organic Eprints
Amosse, Camille; Celette, Florian; Jeuffroy, Marie-Hélène; David, Christophe.
Organic grain system managers have to find solutions to nitrogen deficiency and weed infestation. It is especially true when no animals are present on the farm to justify the use of forage legumes despite their interests in the crop succession. Our study focused on the role of four legume cover crop species inserted in a succession of winter wheat and maize on both problems. This insertion consisted in relay-intercropping the legumes under the canopy of wheat. Cover crops were maintained on the field after the harvest of the cereal until the sowing of the subsequent maize crop. The performance of the three crops of the succession was monitored as well as weed development and nitrogen dynamic in the soil-plant system. On the one hand, our results showed...
Tipo: Journal paper Palavras-chave: Crop combinations and interactions Crop health; Quality; Protection Weed management.
Ano: 2013 URL: http://orgprints.org/26014/1/Amosse_2013_CIAG_Vol32.pdf
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