Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Minnesota-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorKing Abdullah University of Science and Technology-
Autor(es): dc.creatorGalindo, Fernando Shintate-
Autor(es): dc.creatorPagliari, Paulo Humberto-
Autor(es): dc.creatorda Silva, Edson Cabral-
Autor(es): dc.creatorde Lima, Bruno Horschut-
Autor(es): dc.creatorFernandes, Guilherme Carlos-
Autor(es): dc.creatorThiengo, Cassio Carlette-
Autor(es): dc.creatorBernardes, João Victor Silva-
Autor(es): dc.creatorJalal, Arshad-
Autor(es): dc.creatorOliveira, Carlos Eduardo Silva-
Autor(es): dc.creatorde Sousa Vilela, Lucila-
Autor(es): dc.creatorFurlani Junior, Enes-
Autor(es): dc.creatorNogueira, Thiago Assis Rodrigues-
Autor(es): dc.creatordo Nascimento, Vagner-
Autor(es): dc.creatorTeixeira Filho, Marcelo Carvalho Minhoto-
Autor(es): dc.creatorLavres, José-
Data de aceite: dc.date.accessioned2025-08-21T20:21:47Z-
Data de disponibilização: dc.date.available2025-08-21T20:21:47Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1186/s12870-024-04971-3-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/303934-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/303934-
Descrição: dc.descriptionBackground: Considering the challenges posed by nitrogen (N) pollution and its impact on food security and sustainability, it is crucial to develop management techniques that optimize N fertilization in croplands. Our research intended to explore the potential benefits of co-inoculation with Azospirillum brasilense and Bacillus subtilis combined with N application rates on corn plants. The study focused on evaluating corn photosynthesis-related parameters, oxidative stress assay, and physiological nutrient use parameters. Focus was placed on the eventual improved capacity of plants to recover N from applied fertilizers (AFR) and enhance N use efficiency (NUE) during photosynthesis. The two-year field trial involved four seed inoculation treatments (control, A. brasilense, B. subtilis, and A. brasilense + B. subtilis) and five N application rates (0 to 240 kg N ha−1, applied as side-dress). Results: Our results suggested that the combined effects of microbial consortia and adequate N-application rates played a crucial role in N-recovery; enhanced NUE; increased N accumulation, leaf chlorophyll index (LCI), and shoot and root growth; consequently improving corn grain yield. The integration of inoculation and adequate N rates upregulated CO2 uptake and assimilation, transpiration, and water use efficiency, while downregulated oxidative stress. Conclusions: The results indicated that the optimum N application rate could be reduced from 240 to 175 kg N ha−1 while increasing corn yield by 5.2%. Furthermore, our findings suggest that replacing 240 by 175 kg N ha−1 of N fertilizer (-65 kg N ha−1) with microbial consortia would reduce CO2 emission by 682.5 kg CO2−e ha−1. Excessive N application, mainly with the presence of beneficial bacteria, can disrupt N-balance in the plant, alter soil and bacteria levels, and ultimately affect plant growth and yield. Hence, highlighting the importance of adequate N management to maximize the benefits of inoculation in agriculture and to counteract N loss from agricultural systems intensification.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCollege of Agricultural and Technological Sciences Department of Crop Production São Paulo State University-
Descrição: dc.descriptionSouthwest Research and Outreach Center Department of Soil Water and Climate University of Minnesota-
Descrição: dc.descriptionDepartment of Plant Health Rural Engineering and Soils São Paulo State University-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture University of São Paulo-
Descrição: dc.descriptionKing Abdullah University of Science and Technology-
Descrição: dc.descriptionDepartment of Agricultural Sciences São Paulo State University-
Descrição: dc.descriptionCollege of Agricultural and Technological Sciences Department of Crop Production São Paulo State University-
Descrição: dc.descriptionDepartment of Plant Health Rural Engineering and Soils São Paulo State University-
Descrição: dc.descriptionDepartment of Agricultural Sciences São Paulo State University-
Descrição: dc.descriptionFAPESP: 2020/06354-2-
Idioma: dc.languageen-
Relação: dc.relationBMC Plant Biology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAzospirillum brasilense-
Palavras-chave: dc.subjectBacillus subtilis-
Palavras-chave: dc.subjectBiotic stress-
Palavras-chave: dc.subjectN synergists-
Palavras-chave: dc.subjectN use efficiency and recovery-
Título: dc.titleImpact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions-
Tipo de arquivo: dc.typelivro digital-
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