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Effects of the earthworm Pontoscolex corethrurus on rice P nutrition and plant-available soil P in a tropical Ferralsol

hal.structure.identifierEcologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes [UMR Eco&Sols]
dc.contributor.authorTRAP, Jean
hal.structure.identifierEcologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes [UMR Eco&Sols]
dc.contributor.authorBLANCHART, Eric
hal.structure.identifierLaboratoire des RadioIsotopes [LRI]
dc.contributor.authorRATSIATOSIKA, Onja
hal.structure.identifierLaboratoire des RadioIsotopes [LRI]
dc.contributor.authorRAZAFINDRAKOTO, Malalatiana
hal.structure.identifierEcologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes [UMR Eco&Sols]
dc.contributor.authorBECQUER, Thierry
hal.structure.identifierLaboratoire des RadioIsotopes [LRI]
dc.contributor.authorANDRIAMANANJARA, Andry
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOREL, Christian
dc.date.accessioned2024-04-08T11:45:12Z
dc.date.available2024-04-08T11:45:12Z
dc.date.issued2021-04
dc.identifier.issn0929-1393
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195185
dc.description.abstractEnWe conducted a greenhouse experiment in mesocosms for 28 days to assess the effects of the endogeic earthworm Pontoscolex corethrurus on plant-available soil phosphorus (P) and rice (Oryza sativa) P nutrition in a Malagasy Ferralsol. To assess plant-available soil P, we determined the L-value by measuring the specific activity of P taken up from the soil by rice and by applying the isotopic dilution principle. Despite earthworm mortality, P. corethrurus significantly increased rice shoot biomass (+26%) and P nutrition (+65%), confirming that the soil used for the experiment was P-deficient. The L-value also markedly increased from 6.8 ± 0.9 to 14.2 ± 1.3 mg P mesocosm−1 in the presence of P. corethrurus. We estimated that the orthophosphate ions released due to earthworm mortality contributed to 30% of the L-value increase. We attributed the remaining 70% increase to the solubilization of native soil P during its transit through the digestive tract. Thereafter, we discussed the sources of uncertainty associated with the L-value calculation and their utilization to assess earthworm effects on P availability in further studies.
dc.description.sponsorshipAgricultural Sciences for sustainable Development - ANR-10-LABX-0001
dc.description.sponsorshipMUSE - ANR-16-IDEX-0006
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.enEndogeic earthworms
dc.subject.en32P-labeling
dc.subject.enIsotopic dilution
dc.subject.enL-value
dc.subject.enUpland rice
dc.subject.enMadagascar
dc.title.enEffects of the earthworm Pontoscolex corethrurus on rice P nutrition and plant-available soil P in a tropical Ferralsol
dc.typeArticle de revue
dc.identifier.doi10.1016/j.apsoil.2020.103867
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalApplied Soil Ecology
bordeaux.page103867
bordeaux.volume160
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03152409
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03152409v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Soil%20Ecology&rft.date=2021-04&rft.volume=160&rft.spage=103867&rft.epage=103867&rft.eissn=0929-1393&rft.issn=0929-1393&rft.au=TRAP,%20Jean&BLANCHART,%20Eric&RATSIATOSIKA,%20Onja&RAZAFINDRAKOTO,%20Malalatiana&BECQUER,%20Thierry&rft.genre=article


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