| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Calibration and validation of the AquaCrop model for the soybean crop grown under different levels of irrigation in the Motopiba region, Brazil
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| Autores: |
Silva,Vicente de Paulo Rodrigues da
Silva,Roberta Araújo e
Maciel,Girlene Figueiredo
Braga,Célia Campos
Silva Júnior,José Luiz Cabral da
Souza,Enio Pereira de
Almeida,Rafaela Silveira Rodrigues
Silva,Madson Tavares
Holanda,Romildo Morant de
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| Data: |
2018-01-01
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| Ano: |
2018
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| Palavras-chave: |
Biomass production
Evapotranspiration leaf area index
Deficit irrigation yield
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| Resumo: |
ABSTRACT: The water-driven AquaCrop model to simulate yield response has been calibrated and validated for soybean cultivated under different water levels irrigation in Matopiba region, Brazil. The crop was submitted to seven irrigation treatments during the dry season and a dry treatment in the rainy season. The model was parameterized and calibrated by using soybean yield data collected at field level. Model performance was evaluated by using the following statistical parameters: prediction error (Pe), Nash-Sutcliffe efficiency index (E), coefficient of determination (R2), mean absolute error (MAE), root mean square error normalized (RMSEN) and Willmott’s index (d). The statistical analyses of the AquaCrop model calibrated for the Matopiba region disclosed error acceptable for yield prediction of soybean grown under tropical climate conditions. Results also indicated that the C2 soybean cultivar is more resistant to water stress than the C1 soybean grown in the Matopiba region, Brazil. In the treatments when the crop was well supplied with water, at least in one phase, the yield was greater than those with drought stress at last in one phase.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100351
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/0103-8478cr20161118
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.48 n.1 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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