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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
17/04/2000 |
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Data da última atualização: |
15/10/2004 |
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Autoria: |
FARIAS, J. R. B.; NEPOMUCENO, A. L.; NEUMAIER, N. |
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Título: |
Soybean yield and phenology estimation by the DSSAT 3.5 system. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999. |
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Páginas: |
p.591. |
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Idioma: |
Inglês |
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Conteúdo: |
The simulation models for plant development have been used in many areas of the agricultural science, specially to the ones related to agrometeorological zoning and harvest monitoring. The decision support System for Agrotechnology Transfer (DSSAT) integrates simulation models, data banks, softwate for data management, and routine analyses that permit estimation of the plant development cultivars very precisely during specific environmental conditions. In most of the cases, however, there is no interest in knowing the behavior of a specific cultivar, but of cultivars as a whole group. Thus the objective of this work was to define coefficients that represent groups of cultivars submitted to specific conditions, allowing a precise estimation of the coefficients was made using data obtained from several years of experiments with Brazilian semi-early cultivars (the group most planted presently in Brazil) presenting different responses to water deficit. After introducing all the necessary information into the DSSAT system the model was run trying to find the best adjustment of the estimates. It was possible to estimate the average performance of the group of cultivars studied. The adjustments obtained permitted estimations of the grain yield very close to the observed values at field. Furthermore, the adjusted coefficients allowed the observation of the differences in plants submitted to different water availability conditions. Phenology and biomass estimations also did not differ significantly from observed values at field. Therefore, it is possible to conclude that soybean crop performance can be estimated for an average of cultivars and not for only one cultivar. MenosThe simulation models for plant development have been used in many areas of the agricultural science, specially to the ones related to agrometeorological zoning and harvest monitoring. The decision support System for Agrotechnology Transfer (DSSAT) integrates simulation models, data banks, softwate for data management, and routine analyses that permit estimation of the plant development cultivars very precisely during specific environmental conditions. In most of the cases, however, there is no interest in knowing the behavior of a specific cultivar, but of cultivars as a whole group. Thus the objective of this work was to define coefficients that represent groups of cultivars submitted to specific conditions, allowing a precise estimation of the coefficients was made using data obtained from several years of experiments with Brazilian semi-early cultivars (the group most planted presently in Brazil) presenting different responses to water deficit. After introducing all the necessary information into the DSSAT system the model was run trying to find the best adjustment of the estimates. It was possible to estimate the average performance of the group of cultivars studied. The adjustments obtained permitted estimations of the grain yield very close to the observed values at field. Furthermore, the adjusted coefficients allowed the observation of the differences in plants submitted to different water availability conditions. Phenology and biomass estimations also did not di... Mostrar Tudo |
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Palavras-Chave: |
Agrometeorologia; Brasil; Fenology; Software; Soybean. |
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Thesagro: |
Fenologia; Soja. |
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Thesaurus Nal: |
Brazil; meteorology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02490naa a2200265 a 4500
001 1461735
005 2004-10-15
008 1999 bl uuuu u00u1 u #d
100 1 $aFARIAS, J. R. B.
245 $aSoybean yield and phenology estimation by the DSSAT 3.5 system.
260 $c1999
300 $ap.591.
520 $aThe simulation models for plant development have been used in many areas of the agricultural science, specially to the ones related to agrometeorological zoning and harvest monitoring. The decision support System for Agrotechnology Transfer (DSSAT) integrates simulation models, data banks, softwate for data management, and routine analyses that permit estimation of the plant development cultivars very precisely during specific environmental conditions. In most of the cases, however, there is no interest in knowing the behavior of a specific cultivar, but of cultivars as a whole group. Thus the objective of this work was to define coefficients that represent groups of cultivars submitted to specific conditions, allowing a precise estimation of the coefficients was made using data obtained from several years of experiments with Brazilian semi-early cultivars (the group most planted presently in Brazil) presenting different responses to water deficit. After introducing all the necessary information into the DSSAT system the model was run trying to find the best adjustment of the estimates. It was possible to estimate the average performance of the group of cultivars studied. The adjustments obtained permitted estimations of the grain yield very close to the observed values at field. Furthermore, the adjusted coefficients allowed the observation of the differences in plants submitted to different water availability conditions. Phenology and biomass estimations also did not differ significantly from observed values at field. Therefore, it is possible to conclude that soybean crop performance can be estimated for an average of cultivars and not for only one cultivar.
650 $aBrazil
650 $ameteorology
650 $aFenologia
650 $aSoja
653 $aAgrometeorologia
653 $aBrasil
653 $aFenology
653 $aSoftware
653 $aSoybean
700 1 $aNEPOMUCENO, A. L.
700 1 $aNEUMAIER, N.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 599 | |
| 21. |  | FARIAS, J. R. B.; NEPOMUCENO, A. L.; NEUMAIER, N. Água em solos arenosos: estabelecimento de déficit hídrico em culturas. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 27., 2005, Cornélio Procópio. Ata... Londrina: Embrapa Soja, 2005. p. 147-155. (Embrapa Soja. Documentos, 265). Organizado por Odilon Ferreira Saraiva, Cesar de Castro, Janete Lasso Ortiz, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
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| 30. | | NEUMAIER, N.; FARIAS, J. R. B.; NEPOMUCENO, A. L. Comportamento do sistema radicular da soja relativo ao fator agua no solo. Revista Brasileira de Fisiologia Vegetal, Sao Carlos, v. 5, n. 1, p. 61, jun. 1993. Resumo apresentado no IV Congresso Brasileiro de Fisiologia Vegetal, 1993, Fortaleza.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 31. | | NEPOMUCENO, A. L.; SFREDO, G. J.; FARIAS, J. R. B. Comportamento fotossintetico de plantas de soja. Revista Brasileira de Fisiologia Vegetal, Sao Carlos, v. 5, n. 1, p. 80, jun. 1993. Resumo apresentado no IV Congresso Brasileiro de Fisiologia Vegetal, Fortaleza, 1993.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 33. | | SFREDO, G. J.; BORKERT, C. M.; NEPOMUCENO, A. L. Eficiencia de produtos contendo micronutrientes, aplicados via semente sobre a produtividade da soja. Revista Brasileira de Fisiologia Vegetal, Sao Carlos, v. 5, n. 1, p. 69, jun. 1993. Resumo apresentado no IV Congresso Brasileiro de Fisiologia Vegetal, 1993, Fortaleza.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 599 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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