Nitrogen dynamics and fertilisation use efficiency: carry-over effect of crop limitation
| dc.rights.license | open | en_US |
| dc.contributor.author | VERDENAL, T. | |
| dc.contributor.author | SPANGENBERG, J.e. | |
| dc.contributor.author | DIENES-NAGY, Á. | |
| dc.contributor.author | ZUFFEREY, V. | |
| dc.contributor.author | SPRING, J.-L. | |
| dc.contributor.author | VIRET, O. | |
| hal.structure.identifier | Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV] | |
| dc.contributor.author | VAN LEEUWEN, Cornelis
ORCID: 0000-0002-9428-0167 IDREF: 200518208 | |
| dc.date.accessioned | 2023-02-09T09:37:52Z | |
| dc.date.available | 2023-02-09T09:37:52Z | |
| dc.date.issued | 2022-07 | |
| dc.identifier.issn | 1755-0238 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/171910 | |
| dc.description.abstractEn | Background and Aims Knowing the impact of cultural practices on nitrogen (N) dynamics in perennial crops is critical to promote N use efficiency. This study focused on the impact of crop regulation on the plant N dynamics, on the fruit N composition, and on the N fertilisation use efficiency. Methods and Results A large crop load gradient was set in a homogeneous plot of the grape cultivar Chasselas. Fertilisation in the form of 15N-labelled foliar urea allowed the measurement of N uptake and partitioning among plant fractions. Dry mass, carbon, and N dynamics were assessed over two consecutive seasons. Crop regulation did not affect grape N concentration at harvest. Both N uptake and root N mobilisation were reduced in response to crop regulation. Fertilisation efficiency was higher under high-yield conditions in terms of N uptake and grape N accumulation. The carry-over effects of crop regulation in the following year were highlighted. Conclusions Crop regulation strongly affects the overall plant N cycle, that is, uptake, distribution and release. Crop regulation improves must sugar concentration at harvest, while N concentration remained unchanged. The efficiency of N fertilisation varies greatly with crop load, which limits the interest of fertilisation under low-yield conditions. Significance of the Study These results contribute to the development of accurate nutrition models and sustainable cultural practices. | |
| dc.language.iso | EN | en_US |
| dc.rights | Attribution 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/us/ | * |
| dc.subject.en | 15N isotope labelling | |
| dc.subject.en | Amino acids | |
| dc.subject.en | Foliar urea | |
| dc.subject.en | Nitrogen use efficiency | |
| dc.subject.en | Reserve mobilisation | |
| dc.subject.en | Yield | |
| dc.title.en | Nitrogen dynamics and fertilisation use efficiency: carry-over effect of crop limitation | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1111/ajgw.12532 | en_US |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale | en_US |
| bordeaux.journal | Australian Journal of Grape and Wine Research | en_US |
| bordeaux.page | 358-373 | en_US |
| bordeaux.volume | 28 | en_US |
| bordeaux.hal.laboratories | Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287 | en_US |
| bordeaux.issue | 3 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux Sciences Agro | en_US |
| bordeaux.institution | INRAE | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| hal.export | false | |
| dc.rights.cc | CC BY | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Australian%20Journal%20of%20Grape%20and%20Wine%20Research&rft.date=2022-07&rft.volume=28&rft.issue=3&rft.spage=358-373&rft.epage=358-373&rft.eissn=1755-0238&rft.issn=1755-0238&rft.au=VERDENAL,%20T.&SPANGENBERG,%20J.e.&DIENES-NAGY,%20%C3%81.&ZUFFEREY,%20V.&SPRING,%20J.-L.&rft.genre=article |
