Criteria for topdressing nitrogen application to common bean using chlorophyll meter

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMendonca Maia, Suelen Cristina-
Autor(es): dc.creatorSoratto, Rogerio Peres-
Autor(es): dc.creatorLiebe, Suzane Maria-
Autor(es): dc.creatorAlmeida, Adriana Queiroz de-
Data de aceite: dc.date.accessioned2021-03-10T23:55:12Z-
Data de disponibilização: dc.date.available2021-03-10T23:55:12Z-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2017-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S0100-204X2017000700005-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/163091-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/163091-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionInstituto Federal Goiano-
Descrição: dc.descriptionProcesso FAPESP: 2011/08874-4-
Descrição: dc.descriptionProcesso FAPESP: 2011/19594-2-
Descrição: dc.descriptionProcesso FAPESP: 2011/18218-7-
Descrição: dc.descriptionInstituto Federal Goiano: 23731.000064/2017-16-
Descrição: dc.descriptionThe objective of this work was to establish the diagnostic leaf and the nitrogen sufficiency index (NSI) values most appropriate to estimate N requirement by the 'Perola' common bean (Phaseolus vulgaris), based on chlorophyll meter monitoring. The diagnostic leaf was defined in an experiment with five N rates, and up to four sampling dates of the diagnostic leaves were evaluated (first, second, and third completely expanded leaves from the apex). The NSI was established in two crop seasons, under six N managements: M1, 40 kg ha(-1) N at sowing + 80 kg ha(-1) 10 days after emergence (DAE) + 80 kg ha(-1) 20 DAE (reference rate); M2, 20 kg ha(-1) at sowing + 40 kg ha(-1) 10 DAE + 40 kg ha(-1) 20 DAE (recommended rate); M3, 20 kg ha(-1) at sowing + 30 kg ha(-1) when NSI<96%; M4, 20 kg ha(-1) at sowing + 30 kg ha(-1) when NSI<93%; M5, 20 kg ha(-1) N at sowing + 30 kg ha(-1) when NSI<90%; and M6, without N application. The relative chlorophyll index readings on the second fully expanded leaf, at 21 DAE, and on the third leaf, at 28 and 35 DAE, are more precise to estimate the requirement of N by common bean. The NSI of 90% is more effective than the NSI of 93 or 96% for defining the moment for N topdressing application.-
Formato: dc.format512-520-
Idioma: dc.languageen-
Publicador: dc.publisherEmpresa Brasil Pesq Agropec-
Relação: dc.relationPesquisa Agropecuaria Brasileira-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectPhaseolus vulgaris-
Palavras-chave: dc.subjectdiagnostic leaf-
Palavras-chave: dc.subjectnitrogen fertilization-
Palavras-chave: dc.subjectnitrogen sufficiency index-
Palavras-chave: dc.subjectnitrogen use efficiency-
Palavras-chave: dc.subjectrelative chlorophyll index-
Título: dc.titleCriteria for topdressing nitrogen application to common bean using chlorophyll meter-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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