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Sewage Sludge Provided Nitrogen To Maize (Zea Mays L.) Very Rapidly, Demonstrating a High Short-Term Net Mineralization Rate

datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.fosCiências Agrárias::Outras Ciências Agrárias
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorDimande, Paulo
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRodrigues, Manuel Ângelo
dc.date.accessioned2025-11-13T14:47:36Z
dc.date.available2025-11-13T14:47:36Z
dc.date.issued2025
dc.description.abstractThis study aims to evaluate the potential of sewage sludge as a sustainable alternative to traditional farmyard manures, considering the limited availability of such resources in many regions specializing in crop production. This study compared the application of sewage sludge (SS) and cow manure (CM) at equivalent nitrogen (N) rates in silage maize (Zea mays L.) cultivation over two growing seasons. Organic amendments were applied at rates of 50 (SS50, CM50), 100 (SS100, CM100), and 200 (SS200, CM200) kg ha(-)(1) of N, alongside an unfertilized control (N0), with three replicates per treatment in a completely randomized design. Dry matter yield (DMY) increased significantly with the applied dose but showed no significant differences between amendments. N availability indices, including the pre-side-dress soil nitrate test, leaf N concentration, and stalk nitrate test, revealed higher N availability from sewage sludge compared to cow manure at equivalent application rates. Apparent N recovery (ANR) by the end of the second growing season was 99.8%, 90.8%, and 74.5% for SS50, SS100, and SS200, respectively, and 76.7%, 75.4%, and 50.5% for CM50, CM100, and CM200, respectively. The rapid mineralization of sewage sludge likely results from its low carbon (C)/N ratio and the absence of lignin and other low-energy organic compounds, which are less metabolically accessible to soil microorganisms. These properties position sewage sludge as an intermediate between conventional organic compost and mineral fertilizers, making it particularly suitable for cropping systems requiring high short-term N availability.eng
dc.description.sponsorshipOpen access funding provided by FCT|FCCN (b-on).
dc.identifier.citationDimande, Paulo; Arrobas, Margarida; Rodrigues, Manuel Ângelo (2025). Sewage Sludge Provided Nitrogen To Maize (Zea Mays L.) Very Rapidly, Demonstrating a High Short-Term Net Mineralization Rate. Journal of Soil Science and Plant Nutrition. ISSN 0718-9508. 25:3, p. 7139-7151
dc.identifier.doi10.1007/s42729-025-02585-8
dc.identifier.issn0718-9508
dc.identifier.issn0718-9516
dc.identifier.urihttp://hdl.handle.net/10198/35060
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Publishing Company
dc.relation.ispartofJournal of Soil Science and Plant Nutrition
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectOrganic manure
dc.subjectN mineralisation
dc.subjectDecay series
dc.subjectApparent N recovery
dc.subjectPSNT
dc.subjectStalk nitrate test
dc.titleSewage Sludge Provided Nitrogen To Maize (Zea Mays L.) Very Rapidly, Demonstrating a High Short-Term Net Mineralization Rateeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage7151
oaire.citation.issue3
oaire.citation.startPage7139
oaire.citation.titleJournal of Soil Science and Plant Nutrition
oaire.citation.volume25
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
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a

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