| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Simulation of soybean growth and yield under northeastern Amazon climatic conditions
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| Autores: |
Souza,Paulo Jorge de Oliveira Ponte de
Farias,José Renato Bouças
Abreu,José Paulo Mourão de Melo e
Ribeiro,Aristides
Rocha,Edson José Paulino da
Botelho,Marcel do Nascimento
Sousa,Adriano Marlisom Leão de
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| Data: |
2011-06-01
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| Ano: |
2011
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| Palavras-chave: |
Glycine max
Amazon region
Climate models
Leaf area index
Soybean crop expansion
Yield simulation
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| Resumo: |
The objective of this work was to parameterize, calibrate, and validate a new version of the soybean growth and yield model developed by Sinclair, under natural field conditions in northeastern Amazon. The meteorological data and the values of soybean growth and leaf area were obtained from an agrometeorological experiment carried out in Paragominas, PA, Brazil, from 2006 to 2009. The climatic conditions during the experiment were very distinct, with a slight reduction in rainfall in 2007, due to the El Niño phenomenon. There was a reduction in the leaf area index (LAI) and in biomass production during this year, which was reproduced by the model. The simulation of the LAI had root mean square error (RMSE) of 0.55 to 0.82 m² m-2, from 2006 to 2009. The simulation of soybean yield for independent data showed a RMSE of 198 kg ha-1, i.e., an overestimation of 3%. The model was calibrated and validated for Amazonian climatic conditions, and can contribute positively to the improvement of the simulations of the impacts of land use change in the Amazon region. The modified version of the Sinclair model is able to adequately simulate leaf area formation, total biomass, and soybean yield, under northeastern Amazon climatic conditions.
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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=S0100-204X2011000600001
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2011000600001
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.46 n.6 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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