Biological N fixation activity in soybean can be estimated based on nodule dry weight and is increased by additional inoculation

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dc.contributor.authorMartins, Juliana Trindade [UNESP]
dc.contributor.authorRasmussen, Jim
dc.contributor.authorEriksen, Jørgen
dc.contributor.authorArf, Orivaldo [UNESP]
dc.contributor.authorDe Notaris, Chiara
dc.contributor.authorMoretti, Luiz Gustavo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionAarhus University
dc.contributor.institutionFondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici
dc.date.accessioned2023-07-29T13:20:37Z
dc.date.available2023-07-29T13:20:37Z
dc.date.issued2022-12-01
dc.description.abstractThe response of soybean to biological nitrogen fixation (BNF) varies due to factors such as plant variety, soil, and environmental conditions, which can compromise the N2 fixation capacity. The objective of this study was to evaluate additional inoculation with B. japonicum at different soybean growth stages as a strategy to improve N2 fixation. This was determined by studying plant nodulation and BNF with the isotope dilution method. The experiment was carried out under greenhouse conditions in a soil without soybean cropping history. Inoculated soybean increased nodulation, plant biomass, BNF and yield components compared to un-inoculated soybean. Additional inoculation at the V3 growth stage showed promising results by maintaining BNF at later growth stages. A strong correlation was observed between nodule dry weight and N2 fixation, providing an easily available method to estimate differences in BNF activity between treatments. Moreover, efficient nodulation is crucial to sustain high yields with BNF, as shown by the correlation between nodule dry weight and pod dry weight.en
dc.description.affiliationDepartment of Crop Science Food Technology and Social Economy São Paulo State University (UNESP), Ilha Solteira, São Paulo
dc.description.affiliationDepartment of Agroecology Aarhus University, Blichers Allé 20, DK-8830
dc.description.affiliationDepartment of Crop Science São Paulo State University (UNESP) College of Agricultural Sciences, São Paulo
dc.description.affiliationFondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici
dc.description.affiliationUnespDepartment of Crop Science Food Technology and Social Economy São Paulo State University (UNESP), Ilha Solteira, São Paulo
dc.description.affiliationUnespDepartment of Crop Science São Paulo State University (UNESP) College of Agricultural Sciences, São Paulo
dc.description.sponsorshipMiljø- og Fødevareministeriet
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCAPES: 001
dc.identifierhttp://dx.doi.org/10.1016/j.rhisph.2022.100589
dc.identifier.citationRhizosphere, v. 24.
dc.identifier.doi10.1016/j.rhisph.2022.100589
dc.identifier.issn2452-2198
dc.identifier.scopus2-s2.0-85137713252
dc.identifier.urihttp://hdl.handle.net/11449/247607
dc.language.isoeng
dc.relation.ispartofRhizosphere
dc.sourceScopus
dc.subject15N enriched Technique
dc.subjectAzospirillum sp.
dc.subjectBradyrhizobium japonicum
dc.subjectGlycine max
dc.subjectNitrogen fixation
dc.subjectNodulation
dc.titleBiological N fixation activity in soybean can be estimated based on nodule dry weight and is increased by additional inoculationen
dc.typeArtigo
unesp.author.orcid0000-0002-5391-0118 0000-0002-5391-0118[1]
unesp.author.orcid0000-0002-4622-7660[3]
unesp.author.orcid0000-0002-3764-012X 0000-0002-3764-012X[5]
unesp.author.orcid0000-0001-7693-7826[6]
unesp.departmentFitotecnia, Tecnologia de Alimentos e Socioeconomia - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia