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Long-term modeling of phosphorus spatial distribution in the no-tilled soil profile

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierQuebec Research and Development Centre
hal.structure.identifierDepartment of Soils and Agri-Food Engineering
dc.contributor.authorLI, Haixiao
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierQuebec Research and Development Centre
dc.contributor.authorZIADI, Noura
hal.structure.identifierAgassiz Research and Development Centre
dc.contributor.authorMESSIGA, Aimé Jean
hal.structure.identifierQuebec Research and Development Centre
dc.contributor.authorSHI, Yichao
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
hal.structure.identifierDepartment of Soils and Agri-Food Engineering
dc.contributor.authorPARENT, Léon-Etienne
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOREL, Christian
dc.date.accessioned2024-04-08T12:04:11Z
dc.date.available2024-04-08T12:04:11Z
dc.date.issued2019
dc.identifier.issn0167-1987
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196297
dc.description.abstractEnAlthough simulation models have been developed to describe P dynamics in cropped soils, they are designed for the plow layer, in which soil P is assumed to be homogeneously distributed. They are not suitable for soils cropped under no-till systems (NT), in which P distribution in the arable layer is strongly stratified. This work was undertaken to develop and test a two-dimensional distribution model (2D-CycP) for plant-available soil P in the arable layer under NT. To account for lateral and vertical P stratification, we developed a process-based P cycling model adapted to the NT context by partitioning the arable layer into elemental units, units occupying 5 × 10 or 10 x 10 cm sections of the soil profile. For each unit, the plant-available P is balanced by the annual P budget (inputs minus outputs). The main soil input variables of the 2D-CycP model are orthophosphate ion concentration (Cp) in the soil solution at the onset of NT, soil type-specific parameters to describe generalized kinetics of sorption-desorption, root biomass and surface density, and annual P budget. We evaluated the ability of the 2D-CycP model to predict plant-available P dynamics in soils cropped under corn-soybean rotation at different P doses (0, 17.5 and 35 kg P ha−1 applied once every 2 years) over several decades under NT. We used data collected in 2014 after 23-years of field experiment (Quebec, Canada). The 2D-CycP model reproduced patterns of multiannual dynamics of lateral and vertical Cp stratification across the arable layer in relation to P doses. Simulations agreed with Cp measurements when no P was applied. However, there were mismatches between measurements and simulations when P granules were assumed to have always been placed in the same position every fertilization year. Simulations were improved by accounting for more realistic agricultural field conditions such as uncertainty of P fertilizer placement position and soil mixing by earthworm bioturbation.
dc.language.isoen
dc.publisherElsevier
dc.title.enLong-term modeling of phosphorus spatial distribution in the no-tilled soil profile
dc.typeArticle de revue
dc.identifier.doi10.1016/j.still.2018.11.014
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalSoil and Tillage Research
bordeaux.page119-134
bordeaux.volume187
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02627365
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02627365v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Soil%20and%20Tillage%20Research&rft.date=2019&rft.volume=187&rft.spage=119-134&rft.epage=119-134&rft.eissn=0167-1987&rft.issn=0167-1987&rft.au=LI,%20Haixiao&MOLLIER,%20Alain&ZIADI,%20Noura&MESSIGA,%20Aim%C3%A9%20Jean&SHI,%20Yichao&rft.genre=article


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