MERCI: a simple method and decision-support tool to estimate availability of nitrogen from a wide range of cover crops to the next cash crop
hal.structure.identifier | AGroécologie, Innovations, teRritoires [AGIR] | |
dc.contributor.author | CONSTANTIN, Julie | |
hal.structure.identifier | CHAMBRE REGIONALE D'AGRICULTURE POITOU CHARENTES | |
dc.contributor.author | MINETTE, Sébastien | |
hal.structure.identifier | Arvalis Institut du Végétal, Baziège | |
dc.contributor.author | VERICEL, Gregory | |
hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
dc.contributor.author | JORDAN-MEILLE, Lionel | |
hal.structure.identifier | Cirad Direction Générale [Cirad-DG] | |
dc.contributor.author | JUSTES, Eric | |
dc.date.accessioned | 2024-04-08T11:42:40Z | |
dc.date.available | 2024-04-08T11:42:40Z | |
dc.date.issued | 2023-09-20 | |
dc.identifier.issn | 0032-079X | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/195077 | |
dc.description.abstractEn | Background and aims Cover crops can efficiently increase nitrogen (N) recycling in agroecosystems. By providing a green-manure effect for the next crop, they allow reduced mineral fertilisation. We developed a decision-support tool, called MERCI, to predict N available from cover crop residues over time, from a single measurement of fresh shoot biomass.Methods We coupled a large experimental database from France with a simulation experiment using the soil-crop model STICS. More than 25 000 measurements of 74 species of cover crops as a sole crop or bispecific mixtures were collected. Linear regression models, at the species, family or entire-database level depending on the data available, were built to predict dry biomass, N amount and C:N ratio. Dynamics of N mineralized and leaching from cover crop residues were predicted at 24 contrasting sites as a function of the biomass, carbon (C):N ratio and termination date. Results Correlations between fresh biomass, dry biomass and N amounts in experimental data were strong (r = 0.80-0.96), and predicted N amounts in fresh shoot biomass were relatively accurate. Percentages of N mineralized and leached simulated bySTICS were explained mainly by the C:N ratio, site and number of months after termination, but to different degrees.Conclusion MERCI is an easy and robust decision support tool for predicting N release in the field, and could thus be adopted by advisors and farmers to improve management of nutrient recycling in temperate arable cropping systems. | |
dc.language.iso | en | |
dc.publisher | Springer Verlag | |
dc.rights.uri | http://creativecommons.org/licenses/by/ | |
dc.subject.en | Biomass | |
dc.subject.en | Green-manure | |
dc.subject.en | Carbon | |
dc.subject.en | Mineralization | |
dc.subject.en | STICS model | |
dc.subject.en | Biomass Green-manure Carbon Mineralization STICS model | |
dc.title.en | MERCI: a simple method and decision-support tool to estimate availability of nitrogen from a wide range of cover crops to the next cash crop | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1007/s11104-023-06283-1 | |
dc.subject.hal | Sciences du Vivant [q-bio] | |
bordeaux.journal | Plant and Soil | |
bordeaux.page | 19p. | |
bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
bordeaux.institution | Bordeaux Sciences Agro | |
bordeaux.institution | INRAE | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-04216875 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-04216875v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20and%20Soil&rft.date=2023-09-20&rft.spage=19p.&rft.epage=19p.&rft.eissn=0032-079X&rft.issn=0032-079X&rft.au=CONSTANTIN,%20Julie&MINETTE,%20S%C3%A9bastien&VERICEL,%20Gregory&JORDAN-MEILLE,%20Lionel&JUSTES,%20Eric&rft.genre=article |
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