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Sewage sludge showed high agronomic value, releasing nitrogen faster than farmyard manure

2025Journal article Open access
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg02:Erradicar a Fome
dc.contributor.authorDimande, Paulo
dc.contributor.authorArrobas, Margarida
dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorRodrigues, Manuel Ângelo
dc.date.accessioned2025-03-17T11:54:54Z
dc.date.available2025-03-17T11:54:54Z
dc.date.issued2025
dc.description.abstractThe use of fertilizers in agriculture, particularly organic fertilizers such as sewage sludge, is a key research priority due to its impacts on crop productivity, production costs, environmental risks and the push for a more circular economy. This study, conducted in Bragan & ccedil;a, northeastern Portugal, focused on forage maize during the 2022 and 2023 growing seasons. Eight fertilization treatments were established corresponding to the application of mineral nitrogen (N) at rates of 50 (N50), 100 (N100), 150 (N150) and 200 (N200) kg ha(-1), three organic amendments applied at a rate equivalent to 200 kg ha(-1) of N, namely sewage sludge (SS200), cow manure (CM200) and sheep manure (SM200), and a non-fertilized control (N0), with the aim of assessing the agronomic value of these treatments for forage maize (Zea mays L.). Maize dry matter yield (DMY) ranged from 10.8 to 20.3 t ha(-1) in 2022 and 13.7 to 23.6 t ha(-1) in 2023 for N0 and N200, respectively. Organic amendments produced 14.7-17.7 t ha(-1) in 2022 and 20.5-24.4 t ha(-1 )in 2023. Increased mineral N rates resulted in higher soil inorganic N content, N concentration in leaves and N recovery in tissues, with organic amendments showing lower values than crops fertilized with N200. However, due to cumulative nutrient release, organic amendments improved DMY and N use efficiency in the second year. Sewage sludge mineralized rapidly due to its low carbon (C)/N ratio and absence of hard-to-degrade compounds. It is also rich in phosphorus (P), enhancing its fertilizing value. Although nitrate leaching and denitrification potential appeared lower with organic amendments, long-term applications may increase risks, requiring careful monitoring to ensure sustainable and safe practices.eng
dc.description.sponsorshipThis work was supported by National funds through FCT/ MCTES (PIDDAC): CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI: 10.54499/UIDP/00690/2020); and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020), CITAB (UIDB/04033/2020), and national funding by FCT, Foundation for Science and Technology, through the in- dividual research grant PRT/BD/152095/2021 of Paulo Dimande.
dc.identifier.citationDimande Paulo; Arrobas, Margarida; Correia, Carlos Manuel; Rodrigues, M.A. (2025). Sewage sludge showed high agronomic value, releasing nitrogen faster than farmyard manure. Soil Use and Management. ISSN 0266-0032. 41:1, p. 1-14
dc.identifier.doi10.1111/sum.70033
dc.identifier.eissn1475-2743
dc.identifier.issn0266-0032
dc.identifier.urihttp://hdl.handle.net/10198/34360
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationGestão sustentável do solo em ambientes tropical e mediterrânico
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relation.ispartofSoil Use and Management
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCircular economy
dc.subjectMaize yield
dc.subjectNitrogen use efficiency
dc.subjectOrganic fertilization
dc.subjectSoil inorganic nitrogen
dc.subjectZea mays
dc.titleSewage sludge showed high agronomic value, releasing nitrogen faster than farmyard manureeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleGestão sustentável do solo em ambientes tropical e mediterrânico
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/PRT%2FBD%2F152095%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.citation.endPage14
oaire.citation.issue1
oaire.citation.startPage1
oaire.citation.titleSOIL USE AND MANAGEMENT
oaire.citation.volume41
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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