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Impact of long-term application of composted organic residue on soil organic and inorganic phosphorus dynamics

hal.structure.identifierUniversité Laval [Québec] [ULaval]
dc.contributor.authorDAMAR, Hada
hal.structure.identifierDepartment of Soils and Agri-Food Engineering
dc.contributor.authorZIADI, Noura
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierEcologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
dc.contributor.authorHOUOT, Sabine
hal.structure.identifierEcologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
dc.contributor.authorBODINEAU, Guillaume
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorLAUVERJON, Rodolphe
hal.structure.identifierEcologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
dc.contributor.authorMERCIER, Vincent
hal.structure.identifierEcologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
dc.contributor.authorMICHAUD, Aurélia
hal.structure.identifierEcologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
dc.contributor.authorRAMPON, Jean-Noel
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOREL, Christian
dc.date.accessioned2024-04-08T11:58:42Z
dc.date.available2024-04-08T11:58:42Z
dc.date.issued2015
dc.date.conference2015-07-05
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195949
dc.description.abstractEnUrban composts represent a significant reservoir of nutrients, particularly phosphorus (P). Their application in agriculture requires more information on their impact on the dynamics of soil P. In this study, the long-term effects of repeated applications of urban composts and manure on the dynamics of organic P (orgP-SW) and inorganic P (inorgP-SW) stocks using the Saunders and Williams’ (SW) method were analyzed in the soil of the Qualiagro field experiment (4 blocks), grown in a corn / wheat succession. Five treatments were studied: a control without P (CONTROL), a cattle manure (MANURE) and 3 urban composts: compost green waste + sludge (DVB), a biowaste (BIO) and residual household waste (OMR). They were added to soils on the basis of 4 t C / ha every two years over a period of 15 years. We determined the orgP-SW content in the applied products and the plough layer by difference between P extracted by sulfuric acid (0.1M) in a calcined sample (totP-SW) and not calcined (inorgP-SW) samples. All products mainly contained inorgP-SW (81%) because orgP-SW averaged 19% for the 3 urban composts and manure. The average orgP-SW soil content in 2013 was 31% of Ptot-SW and did not differ among treatments. After 15 years, cumulated balance of added minus exported P varied between - 351 (± 12) kg P ha-1 in CONTROL and +1292 (± 21) kg P ha-1 in the DVB treatment. Despite these differences, the stock of total organic P was invariant across most treatments but in the manure treatment where it was higher. Variations in inorgP-SW and total P stocks reflected differences in P balances. The stability of soil orgP-SW in CONTROL indicated that soil organic P contributed little or not at all to crop phosphate nutrition.
dc.language.isoen
dc.subject.enurban composts
dc.subject.enP contents
dc.title.enImpact of long-term application of composted organic residue on soil organic and inorganic phosphorus dynamics
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.titleSoil Interfaces for Sustainable Development (ISMOM)
bordeaux.countryCA
bordeaux.conference.cityMontréal
bordeaux.peerReviewednon
hal.identifierhal-02742217
hal.version1
hal.invitednon
hal.conference.organizerCanadian Society of Soil Science (CSSS). CAN.
hal.conference.end2015-07-10
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02742217v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015&rft.au=DAMAR,%20Hada&ZIADI,%20Noura&MOLLIER,%20Alain&HOUOT,%20Sabine&BODINEAU,%20Guillaume&rft.genre=conference


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