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Drivers of plant-availability of phosphorus from thermally conditioned sewage sludge as assessed by isotopic labeling
| hal.structure.identifier | Laboratoire des RadioIsotopes [LRI] | |
| dc.contributor.author | ANDRIAMANANJARA, Andry | |
| hal.structure.identifier | Laboratoire des RadioIsotopes [LRI] | |
| dc.contributor.author | RABEHARISOA, Lilia | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | PRUD'HOMME, Loïc | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOREL, Christian | |
| dc.date.accessioned | 2024-04-08T12:11:35Z | |
| dc.date.available | 2024-04-08T12:11:35Z | |
| dc.date.issued | 2016 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/196697 | |
| dc.description.abstractEn | Urban sewage sludge is a potential source of phosphorus (P) for agriculture and represents an alternative way to recycle P as fertilizer. However, the use of thermally conditioned sewage sludge (TCSS) required an accurate assessment of its value as P-fertilizer. This work aimed at assessing the plant-availability of P from TCSS. Uptake of P by a mixture of ryegrass and fescue from TCSS and triple super phosphate (TSP) fertilizers was studied using 32P-labeling technique in a greenhouse experiment. Phosphorus was applied at the rate of 50 mg P kg−1.We also conducted incubation experiments considering the same treatments to assess soil microbial respiration. Applications of TCSS and TSP increased plant P uptake that is related to the root P acquisition. The P taken up by plant from soil plant-available P was lower for control compared to TSP or TCSS that was attributed to the increase of root interception of soil P. The contribution of TSP to ryegrass nutrition (Pdff%) was 55% with 22% of the applied P which was taken up by plants (CPU%). The Pdff value for TCSS was 56% with 14% of fertilizer P recovery (CPU%). Shoot biomass and total P uptake from TCSS were lower than those from TSP. As a result, the agronomic effectiveness of TCSS calculated from Pdff value (in comparison with TSP treatment) was 102%, while the AE of TCSS estimated from CPU value (in % TSP) was 64%, which is attributed to microbial activity stimulation inducing P immobilization onto soil constituents and microbial biomass during plant growth. The high C/N ratio of TCSS stimulated soil microbial biomass that competes with plant roots to acquire nutrients, such as P. As a consequence, the P taken up from either native soil or TCSS decreased in similar proportions. The AE value calculated with Pdff% took into account these interactions between soil, plant, and microbial biomass, and is less dependent on operational conditions than the AE value calculated with %Precovery. | |
| dc.language.iso | en | |
| dc.publisher | Frontiers Media S.A. | |
| dc.subject | recyclage des déchets | |
| dc.subject | traitement des boues | |
| dc.subject | engrais | |
| dc.subject | disponibilité en phosphore | |
| dc.subject | ray-grass | |
| dc.subject | fétuque | |
| dc.subject.en | sewage sludge | |
| dc.subject.en | soil respiration | |
| dc.subject.en | microbial P | |
| dc.subject.en | plant-available P | |
| dc.subject.en | P immobilization | |
| dc.subject.en | 32P-labeling technique | |
| dc.subject.en | waste recycling | |
| dc.subject.en | fertilizer | |
| dc.subject.en | ryegrass | |
| dc.title.en | Drivers of plant-availability of phosphorus from thermally conditioned sewage sludge as assessed by isotopic labeling | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.3389/fnut.2016.00019 | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Sciences agricoles | |
| bordeaux.journal | Frontiers in Nutrition | |
| bordeaux.page | 11 p. | |
| bordeaux.volume | 3 | |
| bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
| bordeaux.institution | Bordeaux Sciences Agro | |
| bordeaux.institution | INRAE | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01512104 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01512104v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Nutrition&rft.date=2016&rft.volume=3&rft.spage=11%20p.&rft.epage=11%20p.&rft.au=ANDRIAMANANJARA,%20Andry&RABEHARISOA,%20Lilia&PRUD'HOMME,%20Lo%C3%AFc&MOREL,%20Christian&rft.genre=article |
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