Utilização do modelo Cropgro-soybean na determinação de melhores épocas de semeadura da cultura da soja, na região de Palotina, Estado do Paraná - DOI: 10.4025/actasciagron.v28i4.936

Rivanildo Dallacort; Paulo Sérgio Lourenço de Freitas; Rogério Teixeira de Faria; Antonio Carlos Andrade Gonçalves; Roberto Rezende; Altair Bertonha

doi:10.4025/actasciagron.v28i4.936

Determination of best planting times for soybean in Palotina, State of Paraná, through Cropgro-soybean model - DOI: 10.4025/actasciagron.v28i4.936

Authors

Rivanildo Dallacort UNEMAT Author
Paulo Sérgio Lourenço de Freitas UEM Author
Rogério Teixeira de Faria LAPAR Author
Antonio Carlos Andrade Gonçalves UEM Author
Roberto Rezende UEM Author
Altair Bertonha UEM Author

DOI:

https://doi.org/10.4025/actasciagron.v28i4.936

Keywords:

simulação, Dssat, soja

Abstract

The model Cropgro-soybean was calibrated for cultivars CD 202, CD 204, CD 206 and CD 210 in the municipality of Palotina, State of Paraná, Brazil (24º17'S latitude, 53º50'30'' longitude and 333 m altitude). After calibrated, the model Cropgro was used to estimate soybean yield for five planting times, during 25 years (1974 to 1999). Sensitivity analysis of the model showed high response due to changes in genetic coefficients of the cultivars in this study. The highest crop yield was simulated for October 1, but it also gave the lowest estimates. The best planting dates were found to be October 15 and November 1, with mean yields of 2.450 kg ha^-1 and 2.303 kg ha^-1, respectively.

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Author Biography

Rivanildo Dallacort, UNEMAT

Graduação em Engenharia Agrícola pela Universidade Estadual do Oeste do Paraná (2003) Mestrado em Agronomia pela Universidade Estadual de Maringá (2004) Doutorado em Agronômia pela Universidade Estadual de Maringá (2006) Atualmente é: - Professor titular da Universidade do Estado de Mato Grosso - Membro Comitê Científico Universidade do Estado de Mato Grosso Atuante na área de Engenharia Agrícola, atuando principalmente nos seguintes temas: agrometeorologia, modelagem agrometeorológica, soja, feijão, modelos de simulação, balanço da água no solo, irrigação, recursos hídricos e meio ambiente Currículo Lattes

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Published

2008-02-28

Issue

Vol. 28 No. 4 (2006)

Section

Agricultural Engineering

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How to Cite

Determination of best planting times for soybean in Palotina, State of Paraná, through Cropgro-soybean model - DOI: 10.4025/actasciagron.v28i4.936. (2008). Acta Scientiarum. Agronomy, 28(4), 583-589. https://doi.org/10.4025/actasciagron.v28i4.936