Critical nitrogen dilution curve for estimating nitrogen nutrition index of common beans

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidad Austral de Chile-
Autor(es): dc.contributorKansas State University-
Autor(es): dc.creatorSoratto, Rogério P.-
Autor(es): dc.creatorSandaña, Patricio-
Autor(es): dc.creatorSousa, Westefann S.-
Autor(es): dc.creatorFernandes, Adalton M.-
Autor(es): dc.creatorCiampitti, Ignacio A.-
Data de aceite: dc.date.accessioned2025-08-21T19:02:25Z-
Data de disponibilização: dc.date.available2025-08-21T19:02:25Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.fcr.2024.109713-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308301-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308301-
Descrição: dc.descriptionContext or problem: Common beans (Phaseolus vulgaris L.) are a key crop in the global diet and nitrogen (N) fertilization is a critical management factor. Therefore, it is essential to develop a critical N dilution curve (CNDC) for common bean in order to improve N fertilization management. Objective or research question: The aims of this study were to quantify the CNDCs using a Bayesian statistical approach and calculate the N nutrition index (NNI) as a diagnosis metric for the attainable seed yield. Methods: Two field experiments were conducted in southeastern Brazil (Botucatu, São Paulo), evaluating three common bean cultivars (IPR Andorinha, IPR Campos Gerais, and TAA Dama) and three N fertilization rates (0, 60, and 120 kg N ha⁻¹). Aboveground dry matter (DM) biomass (W) and plant N concentration (%N) were determined at six sampling dates during the crop cycle. Results and conclusions: In both experiments, seed yield was influenced by N rate (p < 0.01), but neither by cultivar nor by cultivar × N rate interaction. A generic CNDC [Nc (%) = 4.72 W⁻0.32] was determined with reduced uncertainty in its parameters. A significant relationship (p < 0.05; R2 = 0.74) was obtained between the relative seed yield and the integrated NNI (NNI-int) calculated with the generic CNDC. The instantaneous NNI measured between pre-flowering (R5) and pod formation (R7) growth stages was identified to be a reliable predictor of relative seed yield. Implications or significance: Therefore, the generic CNDC and the determination of NNI are valuable tools for diagnosing N nutritional status and improving N fertilization management in common bean crops.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDept. of Crop Science College of Agricultural Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstituto de Producción y Sanidad Vegetal Universidad Austral de Chile Campus Isla Teja-
Descrição: dc.descriptionDept. of Agronomy Kansas State University, 2004 Throckmorton Plant Science Center-
Descrição: dc.descriptionDept. of Crop Science College of Agricultural Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionCNPq: 141190/2021–3-
Idioma: dc.languageen-
Relação: dc.relationField Crops Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBayesian-
Palavras-chave: dc.subjectN content-
Palavras-chave: dc.subjectN management-
Palavras-chave: dc.subjectNNI-
Palavras-chave: dc.subjectPhaseolus vulgaris-
Palavras-chave: dc.subjectRelative yield-
Título: dc.titleCritical nitrogen dilution curve for estimating nitrogen nutrition index of common beans-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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