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Limited effects of crop foliar Si fertilization on a marginal soil under a future climate scenario

hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorRINEAU, Francois
hal.structure.identifierUniversität Bonn = University of Bonn
dc.contributor.authorGROH, Jannis
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorCLAES, Julie
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorGROSJEAN, Kristof
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMENCH, Michel
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorMORENO-DRUET, Maria
hal.structure.identifierLithuanian Research Centre for Agriculture and Forestry [LAMMC]
dc.contributor.authorPOVILAITIS, Virmantas
hal.structure.identifierInstitut für Bio- und Geowissenschaften [Jülich]
dc.contributor.authorPÜTZ, Thomas
hal.structure.identifierWarsaw University of Life Sciences [SGGW]
dc.contributor.authorRUTKOWSKA, Beata
hal.structure.identifierHelmholtz Zentrum München = German Research Center for Environmental Health [HMGU]
dc.contributor.authorSCHRÖDER, Peter
hal.structure.identifierInstitute of Environmental Sciences [Leiden] [CML]
dc.contributor.authorSOUDZILOVSKAIA, Nadejda
dc.contributor.authorSWINNEN, Xander
hal.structure.identifierWarsaw University of Life Sciences [SGGW]
dc.contributor.authorSZULC, Wieslaw
hal.structure.identifierHasselt University [UHasselt]
dc.contributor.authorTHIJS, Sofie
hal.structure.identifierForschungszentrum Jülich GmbH | Centre de recherche de Jülich | Jülich Research Centre [FZJ]
dc.contributor.authorVANDERBORGHT, Jan
hal.structure.identifierHasselt University [UHasselt]
hal.structure.identifierUniwersytet Marii Curie-Sklodowskiej = University Marii Curie-Sklodowskiej [Lublin] [UMCS]
dc.contributor.authorVANGRONSVELD, Jaco
hal.structure.identifierForschungszentrum Jülich GmbH | Centre de recherche de Jülich | Jülich Research Centre [FZJ]
dc.contributor.authorVEREECKEN, Harry
dc.contributor.authorVERHAEGE, Kasper
hal.structure.identifierLithuanian Research Centre for Agriculture and Forestry [LAMMC]
dc.contributor.authorŽYDELIS, Renaldas
hal.structure.identifierEstonian University of Life Sciences [EMU]
dc.contributor.authorLOIT, Evelin
dc.date.issued2024-01
dc.identifier.issn2405-8440
dc.description.abstractEnGrowing crops on marginal lands is a promising solution to alleviate the increasing pressure on agricultural land in Europe. Such crops will however be at the same time exposed to increased drought and pathogen prevalence, on already challenging soil conditions. Some sustainable practices, such as Silicon (Si) foliar fertilization, have been proposed to alleviate these two stress factors, but have not been tested under controlled, future climate conditions. We hypothesized that Si foliar fertilization would be beneficial for crops under future climate, and would have cascading beneficial effects on ecosystem processes, as many of them are directly dependent on plant health. We tested this hypothesis by exposing spring barley growing on marginal soil macrocosms (three with, three without Si treatment) to 2070 climate projections in an ecotron facility. Using the high-capacity monitoring of the ecotron, we estimated C, water, and N budgets of every macrocosm. Additionally, we measured crop yield, the biomass of each plant organ, and characterized bacterial communities using metabarcoding. Despite being exposed to water stress conditions, plants did not produce more biomass with the foliar Si fertilization, whatever the organ considered. Evapotranspiration (ET) was unaffected, as well as water quality and bacterial communities. However, in the 10-day period following two of the three Si applications, we measured a significant increase in C sequestration, when climate conditions where significantly drier, while ET remained the same. We interpreted these results as a less significant effect of Si treatment than expected as compared with literature, which could be explained by the high CO2 levels under future climate, that reduces need for stomata opening, and therefore sensitivity to drought. We conclude that making marginal soils climate proof using foliar Si treatments may not be a sufficient strategy, at least in this type of nutrient-poor, dry, sandy soil.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/
dc.subject.enMarginal soil
dc.subject.enClimate change
dc.subject.enEcosystem services
dc.subject.enSustainable agricultural practices
dc.title.enLimited effects of crop foliar Si fertilization on a marginal soil under a future climate scenario
dc.typeArticle de revue
dc.identifier.doi10.1016/j.heliyon.2023.e23882
dc.subject.halSciences de l'environnement
bordeaux.journalHeliyon
bordeaux.pagee23882
bordeaux.volume10
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-04642179
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04642179v1
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