Optimization of sowing date and irrigation levels for white oats using the CERES-Barley model

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCoelho, Anderson Prates [UNESP]-
Autor(es): dc.creatorde Faria, Rogério Teixeira [UNESP]-
Autor(es): dc.creatorLeal, Fábio Tiraboschi [UNESP]-
Autor(es): dc.creatorde Arruda Barbosa, José [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:54:07Z-
Data de disponibilização: dc.date.available2022-02-22T00:54:07Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00484-021-02147-4-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208689-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208689-
Descrição: dc.descriptionStudies on the use of deficit irrigation and application of models for estimating agronomic performance of crops can help in more sustainable agricultural managements. The objective of this study was to evaluate the effect of irrigation levels on the agronomic performance of white oat (Avena sativa L.) and accuracy of the CERES-Barley model in simulating white oat growth and yield, as well as performing long-term simulation to identify the best sowing time for each irrigation management. The experiment consisted of five irrigation levels (11%, 31%, 60%, 87%, and 100%), being conducted in two agricultural years in southeastern Brazil. The model was calibrated with data of the treatment without water deficit (100%) of the first year and validated with the data of the other treatments in the 2 years. Long-term analyses, with a historical series of 16 years, were performed to recommend the best sowing dates for each irrigation management. Deficit irrigation linearly reduces the agronomic performance of white oat. The high accuracy of white oat yield estimation (R2 = 0.86; RMSE = 616 kg ha−1) using the CERES-Barley model allowed the long-term simulation for establishing the best sowing date for each irrigation level. For higher irrigation levels, sowing in periods with lower temperature (May and June) is more appropriate, as the 1 °C increment in the average temperature before flowering reduces crop yield by 600 kg ha−1. At irrigation levels with higher deficit, sowing in periods with higher rainfall (March and April) promotes higher crop yield.-
Descrição: dc.descriptionDepartment of Rural Engineering School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp), Via de Acesso Prof. Paulo Donato Castellane, s/n, CEP-
Descrição: dc.descriptionDepartment of Rural Engineering School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp), Via de Acesso Prof. Paulo Donato Castellane, s/n, CEP-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Biometeorology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAvena sativa L-
Palavras-chave: dc.subjectDSSAT-
Palavras-chave: dc.subjectGrain yield-
Palavras-chave: dc.subjectModeling-
Palavras-chave: dc.subjectSowing time-
Título: dc.titleOptimization of sowing date and irrigation levels for white oats using the CERES-Barley model-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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