Nitrogen use efficiency and recovery in a wheat-corn rotation under tropical savannah conditions

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorGoiano Federal Institute-
Autor(es): dc.contributorUniversity of Minnesota-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorGalindo, Fernando Shintate [UNESP]-
Autor(es): dc.creatorda Silva, Edson Cabral-
Autor(es): dc.creatorPagliari, Paulo Humberto-
Autor(es): dc.creatorFernandes, Guilherme Carlos [UNESP]-
Autor(es): dc.creatorRodrigues, Willian Lima [UNESP]-
Autor(es): dc.creatorBiagini, Antônio Leonardo Campos [UNESP]-
Autor(es): dc.creatorBaratella, Eduardo Bianchi [UNESP]-
Autor(es): dc.creatorda Silva Júnior, Castro Alves [UNESP]-
Autor(es): dc.creatorMoretti Neto, Mário João [UNESP]-
Autor(es): dc.creatorMuraoka, Takashi-
Autor(es): dc.creatorTeixeira Filho, Marcelo Carvalho Minhoto [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:45:22Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:22Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10705-020-10115-4-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205810-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205810-
Descrição: dc.descriptionStable isotopes (e.g., 15N) can be used to develop best practices for fertilizer management in cereal crops under tropical conditions. The objectives of this study were to determine the N contribution from fertilizer and soil to wheat and corn grown in rotation and the residual N contribution from fertilizer applied to wheat and carried over to corn under Brazilian savannah conditions. This study was established in a no-till system on Rhodic Haplustox soil in a randomized complete block design with four replications. The N treatments applied to the wheat crops were 0, 20, 40, 60, 80 and 160 kg (urea-15N) ha−1. The residual effects of N on the succeeding corn crop were evaluated. During the corn phase, two additional treatments were included: a control (0 N) and a treatment with 160 kg N ha−1. Regression analysis showed that the highest estimated wheat yield (5415 kg ha−1) was observed with the application of 114 kg N ha−1. Significant effects from the residual N were observed in the corn shoot biomass and straw N uptake. On average, the recovery rate of the urea N fertilizer was 34% for wheat, and the residual urea N fertilizer use in corn (when applied to wheat) was less than 5% of the amount initially applied. The effect of the residual N was not enough to meet the N demands of the succeeding corn crop. The results of this study provide producers and the scientific community with good estimates of nitrogen use efficiency for wheat and corn.-
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.descriptionDepartment of Plant Health Rural Engineering and Soils College of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56 - Centro-
Descrição: dc.descriptionGoiano Federal Institute, Rio Verde Campus-
Descrição: dc.descriptionDepartment of Soil Water and Climate Southwest Research and Outreach Center University of Minnesota-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture University of Sao Paulo-
Descrição: dc.descriptionDepartment of Plant Health Rural Engineering and Soils College of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56 - Centro-
Descrição: dc.descriptionFAPESP: 18/08485-7-
Descrição: dc.descriptionCNPq: 312359/2017-9-
Formato: dc.format291-305-
Idioma: dc.languageen-
Relação: dc.relationNutrient Cycling in Agroecosystems-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEfficiency of nitrogen fertilization-
Palavras-chave: dc.subjectNitrogen-15-
Palavras-chave: dc.subjectResidual effect of N-
Palavras-chave: dc.subjectTriticum aestivum L-
Palavras-chave: dc.subjectZea mays L-
Título: dc.titleNitrogen use efficiency and recovery in a wheat-corn rotation under tropical savannah conditions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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