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Sewage sludge fertilization—A case study of Sweet Potato yield and heavy metal accumulation

2022Journal article Open access
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dc.contributor.authorRagonezi, Carla
dc.contributor.authorNunes, Nuno
dc.contributor.authorOliveira, Maria Cristina O.
dc.contributor.authorFreitas, José G. R. de
dc.contributor.authorGanança, José Filipe T.
dc.contributor.authorCarvalho, Miguel Â. A. Pinheiro de
dc.date.accessioned2022-09-23T15:12:20Z
dc.date.available2022-09-23T15:12:20Z
dc.date.issued2022
dc.description.abstractSewage sludge (SS) is derived from wastewater treatment plants and can be used as a biofertilizer when properly stabilized. This work aimed to evaluate SS application for agricultural production improvement. SS was tested on Porto Santo Island (Portugal). The experiment was randomly designed with three 25 m2 plots for each treatment (2 SS concentrations + control without SS) and performed in two consecutive cycles. For the first cycle, dehydrated sludge was mixed with soil, obtaining final concentrations of 0.8 kg/m2 (C1) and 1.6 kg/m2 (C2). Half of the concentration was used for the second cycle. Fifty-eight sweet potato plants were used in each plot. SS application boosted the agronomic parameters of biomass, productivity, and shoot biomass. Furthermore, improvements in soil properties were observed, mainly for pH, CEC, and NO3 -N, with no significant increase in heavy metals. For the edible parts, heavy metal concentrations decreased, and Pb was the only one that still exceeded the maximum limits. The results demonstrated that SS application to low-fertility soil is effective in improving the agronomic parameters of sweet potato and enhancing soil features. Further studies considering other variables, i.e., SS origin, soil properties, and the crop, must be carried out to propose custom applications.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRagonezi, C.; Nunes, N.; Oliveira, M.C.O.; de Freitas, J.G.R.; Ganança, J.F.T.; de Carvalho, M.Â.A.P. Sewage Sludge Fertilization—A Case Study of Sweet Potato Yield and Heavy Metal Accumulation. Agronomy 2022, 12, 1902. https:// doi.org/10.3390/agronomy12081902pt_PT
dc.identifier.doi10.3390/agronomy12081902pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4650
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAgronomic parameterspt_PT
dc.subjectProductionpt_PT
dc.subjectSoil propertiespt_PT
dc.subjectSoil amendmentpt_PT
dc.subjectBioaccumulationpt_PT
dc.subjectTranslocation factorspt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.subjectEscola Superior de Tecnologias e Gestãopt_PT
dc.titleSewage sludge fertilization—A case study of Sweet Potato yield and heavy metal accumulationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04033%2F2020/PT
oaire.citation.issue8pt_PT
oaire.citation.startPage1902pt_PT
oaire.citation.titleAgronomypt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRagonezi
person.familyNameNunes
person.familyNameOliveira
person.familyNameGanança
person.familyNameAlmeida Pinheiro de Carvalho
person.givenNameCarla
person.givenNameNuno
person.givenNameCristina
person.givenNameJosé Filipe
person.givenNameMiguel Angelo
person.identifier1218558
person.identifier.ciencia-idFC12-D3F0-EF3D
person.identifier.ciencia-idD412-34DB-BB84
person.identifier.ciencia-id4610-6741-6816
person.identifier.orcid0000-0002-1822-5473
person.identifier.orcid0000-0001-6166-8045
person.identifier.orcid0000-0003-3859-6412
person.identifier.orcid0000-0002-8384-6188
person.identifier.orcid0000-0002-5084-870X
person.identifier.ridAEE-0913-2022
person.identifier.scopus-author-id36460033800
person.identifier.scopus-author-id8758577600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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