Optimal soybean sowing window adjusted to climatic variability based on El Nino-Southern Oscillation using agrometeorological modeling1

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dc.creatorMarcus José Alves de Lima
dc.creatorHildo Giuseppe Garcia Caldas Nunes
dc.creatorLeila Sobral Sampaio
dc.creatorPaulo Jorge de Oliveira Ponte de Souza
dc.creatorClyde William Fraisse
dc.date2022
dc.date.accessioned2026-07-07T04:31:52Z
dc.descriptionDetermining the optimal sowing window (OSW) based on climate variability associated with El Nino-Southern Oscillation (ENSO) can provide valuable information for agricultural planning in the tropics. This study aimed to calibrate, evaluate and apply the CROPGRO-Soybean model for determining the OSW across the ENSO phases for soybean-producing areas in the Pará State, northern Brazil. First, the model was calibrated and evaluated using experimental data collected in the field, between 2006 and 2009. In this process, the model estimates showed a good agreement with the observed data for soybean phenology, growth and yield, demonstrating potential to simulate the crop yield in this part of the Amazon. After calibration, the model was used in the seasonal mode to simulate 18 planting dates, over 39 years and in three locations. The simulated yields were divided into three ENSO phases. The set of sowing dates that showed a high frequency (> 80 %) of yields above 3,500 kg ha−1 integrated the OSW for each location and ENSO phases. The OSW duration differed between locations and ENSO phases, varying more during La Nina than El Nino events. However, regardless of the location or ENSO phase, late sowing was more suitable, because, besides favoring a greater frequency of good climate conditions for the development, growth and high yields, it also favors a lower risk of rainfall during the harvest period.
dc.formatapplication/pdf
dc.identifier1517-6398
dc.identifierhttps://www.redalyc.org/articulo.oa?id=253070366022
dc.identifierhttps://www.redalyc.org/journal/2530/253070366022/
dc.identifierhttps://www.redalyc.org/journal/2530/253070366022/html/
dc.identifierhttps://www.redalyc.org/journal/2530/253070366022/253070366022.epub
dc.identifierhttps://www.redalyc.org/journal/2530/253070366022/movil
dc.identifier10.1590/1983-40632022v5272428
dc.identifier.urihttp://hdl.handle.net/123456789/464221
dc.languageen
dc.publisherUniversidade Federal de Goiás
dc.relationhttp://www.redalyc.org/revista.oa?id=2530
dc.rightsPesquisa Agropecuária Tropical
dc.sourcePesquisa Agropecuária Tropical (Brasil) Vol.52
dc.subjectAgrociencias
dc.titleOptimal soybean sowing window adjusted to climatic variability based on El Nino-Southern Oscillation using agrometeorological modeling1
dc.typeartículo científico

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Pesquisa Agropecuária Tropical - Universidade Federal de Goiás