Process-based mass-balance modeling of soil phosphorus availability: Testing different scenarios in a long-term maize monoculture
| hal.structure.identifier | Environmental and Resource Studies Program | |
| dc.contributor.author | MESSIGA, Aimé Jean | |
| hal.structure.identifier | Soils and Crops Research and Development Centre | |
| dc.contributor.author | ZIADI, Noura | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOLLIER, Alain | |
| hal.structure.identifier | Department of Soils and Agri-Food Engineering | |
| dc.contributor.author | PARENT, Léon-Etienne | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | SCHNEIDER, Andre | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOREL, Christian | |
| dc.date.accessioned | 2024-04-08T12:02:35Z | |
| dc.date.available | 2024-04-08T12:02:35Z | |
| dc.date.issued | 2015 | |
| dc.identifier.issn | 0016-7061 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/196213 | |
| dc.description.abstractEn | Unraveling phosphorus cycling is an important issue for managing agricultural ecosystem sustainably. We built a process-based mass balance model that equilibrates annual P budget with plant-available soil P, assessed as the sum of phosphate ions (Pi) in solution and the time-dependent diffusive Pi (Pr) that replenishes Pi in solution. We evaluate the predictive ability of this model considering different scenarios of (a) periods of Pi diffusion at the solid-to-solution interface, and (b) contributions of the plow layer to plant nutrition. On average, the P applications were: 0 (P0), 27 (P27), and 79 (P79) kg P ha− 1 applied every year and 52 (P52/2) kg P ha− 1 applied every 2 years as triple superphosphate over 17 years (1975–1992). Climatic data, grain yields, grain P contents and annual P budgets were determined. Batch experiments were conducted in laboratory to analyze the concentration of Pi (Cp) and Pr kinetics by isotopic dilution for short periods (< 400 min). All experimental Pr values closely fitted to the following Freundlich kinetic equation: Pr = 5.72Cp0.69t0.24 (144 observations, R2 = 0.95, P < 0.001). Assuming that slow reactions lasted for one year and that the P removed by harvest was entirely derived from the plow layer, Cp simulations over 17 years accurately reflected the long-term effect of balanced P fertilization, P27 and P52/2 treatments, but not of unbalanced P fertilization, P0 and P79 treatments; root mean square deviation (RMSD) was 0.4343. The Cp simulations based on the assumption that slow reactions lasted more than a year were significantly improved for unbalanced P fertilization, P0 and P79 treatments (RMSD = 0.2976 for 3 years and RMSD = 0.2329 for 5 years). In addition, the Cp simulations based on the assumption that for P0 treatment, part of grain P was taken up from below the plow layer were significantly improved (RMSD = 0.0613 for 80% and RMSD = 0.0670 for 60% P uptake from the plow layer). The proposed model accounted for extended periods of Pi equilibration and the contribution of the plow layer to plant nutrition in this maize monoculture. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | equilibration period | |
| dc.subject.en | diffusive soil P | |
| dc.subject.en | P budget | |
| dc.subject.en | process-based mass-balance modeling | |
| dc.subject.en | plow layer | |
| dc.subject.en | solution phosphate ions | |
| dc.title.en | Process-based mass-balance modeling of soil phosphorus availability: Testing different scenarios in a long-term maize monoculture | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.geoderma.2014.12.009 | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Sciences agricoles | |
| bordeaux.journal | Geoderma | |
| bordeaux.page | 41-49 | |
| bordeaux.volume | 243–244 | |
| bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
| bordeaux.issue | 0 | |
| bordeaux.institution | Bordeaux Sciences Agro | |
| bordeaux.institution | INRAE | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02635051 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02635051v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geoderma&rft.date=2015&rft.volume=243%E2%80%93244&rft.issue=0&rft.spage=41-49&rft.epage=41-49&rft.eissn=0016-7061&rft.issn=0016-7061&rft.au=MESSIGA,%20Aim%C3%A9%20Jean&ZIADI,%20Noura&MOLLIER,%20Alain&PARENT,%20L%C3%A9on-Etienne&SCHNEIDER,%20Andre&rft.genre=article |
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