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Animal manures applied to soil: phosphorus bioavailability, losses to water and erosion

2014Conference object Open access
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dc.contributor.authorMonteiro, M.C.H.
dc.contributor.authorRibeiro, Paulo
dc.contributor.authorBatista, Marta
dc.contributor.authorCarneiro, J.P.
dc.contributor.authorDuarte, A.C.
dc.contributor.authorRoboredo, Marta
dc.contributor.authorTorrent, J.
dc.contributor.authorSharpley, Andrew
dc.date.accessioned2014-10-22T14:49:32Z
dc.date.available2014-10-22T14:49:32Z
dc.date.issued2014
dc.descriptionComunicação oral da qual só está disponível o resumo.por
dc.description.abstractPhosphorus (P) is a non renewable resource which highlights the significance of developing and using alternative sources of P for a sustainable agriculture. Animal manure is an option but its application to soils to meet crop nitrogen needs requires careful management practices to minimize freshwater eutrophication. The aim of this work was to evaluate the partitioning of applied P between plant uptake, losses to water, and erosion losses when using different animal manures and a mineral P fertilizer. A field trial was conducted at an erosion experimental station. The treatments were: Control (0 kg P/ha); cattle manure; solid fraction of pig and duck slurry and superphosphate, each applied at a rate of 50 kg P/ha after Lolium sp was sown. Soil samples from each trial were collected over the 9-month study and the water extractable soil P determined. It was found that desorption of P from all additions rapidly increased soon after P application (2 weeks). After that water extractable soil P remained fairly constant. While duck slurry desorbed the largest concentration of P, all sources have the potential to desorb P that could accelerate eutrophication. Plant uptake of P was greater with cattle manure added and released the least amount of P to water compared with the other sources of P. The partitioning of applied P between plant uptake and losses to runoff and sediments ranged between 5-12 % with the higher values in Duck treatment. Animal manures significantly increased soil Olsen-P, plant production and P uptake relative to mineral fertilizer. Animal manures can be considered as a source of available P nevertheless to avoid eutrophication risks increase plant P use efficiency is also important.por
dc.identifier.citationMONTEIRO, M.C.H. [et al.] (2014) - Animal manures applied to soil: Phosphorus bioavailability, losses to water and erosion. In Sustainable Phosphorus Summit, 1-3 setembro, Montpellier, França. Comunicação oral.por
dc.identifier.urihttp://hdl.handle.net/10400.11/2586
dc.language.isoengpor
dc.subjectPhosphoruspor
dc.subjectManurepor
dc.titleAnimal manures applied to soil: phosphorus bioavailability, losses to water and erosionpor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceMontpellier, Françapor
oaire.citation.titleSustainable Phosphorus Summit, 1-3 setembro 2014por
person.familyNameMonteiro
person.familyNameBatista
person.familyNameCarneiro
person.familyNameCANATÁRIO DUARTE
person.givenNameM.C.H.
person.givenNameMarta
person.givenNameJ.P.
person.givenNameANTÓNIO
person.identifier.ciencia-id5D12-6B5C-23F1
person.identifier.ciencia-idD316-C4F5-BAE7
person.identifier.ciencia-idA01D-21BA-DA55
person.identifier.ciencia-id0717-AB48-E1A3
person.identifier.orcid0000-0003-0101-1599
person.identifier.orcid0000-0002-8990-6284
person.identifier.orcid0000-0002-9998-7815
person.identifier.orcid0000-0002-0319-378X
person.identifier.scopus-author-id8570278900
person.identifier.scopus-author-id54901177900
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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relation.isAuthorOfPublicationa035d711-2dfb-4b3f-9c09-671a9bf6bb84
relation.isAuthorOfPublication092a1460-9d2f-4883-ac62-e98f3cad5482
relation.isAuthorOfPublicationff1ed167-3f68-4e2b-b092-aaa0eb28ae6b
relation.isAuthorOfPublication.latestForDiscovery092a1460-9d2f-4883-ac62-e98f3cad5482

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