Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/3337
Title: Simulation of soybean growth and yield under northeastern Amazon climatic conditions
Other Titles: Simulação do crescimento e da produtividade da soja nas condições climáticas do nordeste da Amazônia
metadata.dc.creator: 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
Keywords: Cultura agrícola
Modelo clímático
Soja
Expansão
Índice de massa foliar
Glycine max
Paragominas - PA
Pará - Estado
Amazônia brasileira
Issue Date: Jun-2011
Citation: SOUZA, Paulo Jorge de Oliveira Ponte de, et al. Simulation of soybean growth and yield under northeastern Amazon climatic conditions. Pesquisa Agropecuária Brasileira. Brasília, vol.46, n.6, p. 567-577, jun. 2011. Disponível em: <http://www.scielo.br/pdf/pab/v46n6/a01v46n6.pdf>. Acesso em: 16 jan. 2013. <http://dx.doi.org/10.1590/S0100-204X2011000600001>.
Abstract: 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.
URI: http://repositorio.ufpa.br/jspui/handle/2011/3337
ISSN: 0100-204X
Appears in Collections:Artigos Científicos - FAMET/IG

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