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Reducing the use of nitrogen fertilizers: how and what potential impact on N2O emissions from French agriculture?

hal.structure.identifierUnité de Science du Sol (Orléans) [URSols]
dc.contributor.authorHÉNAULT, Catherine
hal.structure.identifierEconomie Publique [ECO-PUB]
dc.contributor.authorBAMIÈRE, Laure
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
hal.structure.identifierAgronomie
dc.contributor.authorJEUFFROY, Marie-Helene
hal.structure.identifierFractionnement des AgroRessources et Environnement [FARE]
dc.contributor.authorRECOUS, Sylvie
dc.date.accessioned2024-04-08T11:55:24Z
dc.date.available2024-04-08T11:55:24Z
dc.date.issued2015
dc.date.conference2015-03-16
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195666
dc.description.abstractEnIn order to reduce the greenhouse gases emissions from French agriculture and particularly those of N2O, we studied the attenuation that could be allowed by a decrease in the use of mineral nitrogen fertilization on annual crops, in France. We estimated the total attenuation at the 2030 horizon and the cost of these actions for the farmer, expressed per ton of CO2e avoided. The technical actions studied concerned a better and larger implementation of the N balance to calculate N fertilizer rate, improving fertilizer efficiency through adapted practices (timing, N placement, nitrification inhibitors), and increasing surfaces grown with legumes in arable crop rotations and grasslands. Our calculations indicate a reduction in the range 15-30 kg N / year / ha affected by each measure. The mitigation potential would be important in 2030 (without modifying production levels) because of the large areas concerned – especially for improving and extending rational N fertilization and its management. Most of the proposed measures would have negative or slightly positive costs, because they represent a saving of inputs. Implementation still requires additional technical references and consistent changes in the French socio-technical system from all stakeholders.
dc.language.isoen
dc.subject.enréduction gaz à effet de serre
dc.subject.enagriculture française
dc.subject.enfertilisation azotée
dc.subject.enpotentiel d'atténuation
dc.subject.enrotation culturale
dc.titleReducing the use of nitrogen fertilizers: how and what potential impact on N2O emissions from French agriculture?
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
bordeaux.pagenp
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.titleClimate SMART Agriculture 2015 - Global science conference - Towards Climate smart Solutions
bordeaux.countryFR
bordeaux.conference.cityMontpellier
bordeaux.peerReviewedoui
hal.identifierhal-01173064
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2015-03-18
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01173064v1
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