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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
17/12/1996 |
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Data da última atualização: |
17/12/1996 |
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Autoria: |
CASTRO, A. M. G. de. |
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Título: |
A systems approach to determining priorities for natural rubber research in Brasil. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Reading: University of Reading, 1988. |
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Páginas: |
290p. |
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Idioma: |
Inglês |
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Notas: |
PhD. Thesis. |
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Conteúdo: |
A systems approach was demonstrated to determine priorities and resource allocation for agricultural research in Brazil with the objective being to alleviate the subjectivity of the process which often has led to internal conflict and loss of efficiency in the traditional approach. The research program in natural rubber, an important commodity in Brazil, was chosen to represent the single commodity research in that country. A review of the Brazilian rubber farmers and problems faced by them, was given together with a description of the natural rubber research organization. Performance was assessed at the two primary rubber producing centers of Brazil, Manaus and S. Paulo. A preliminary crop growth model was built in order to simulate rubber growth and produc-tion. The model consists of a carbon & water flow can simulate the modrubber growth and yield on daily basis. Two submodels were developed to determine the nutrient uptake and yield losses resulting from foliar diseases. The model was constructed using data from Brazil but data from other producing countries was also included when information was not available. Only a qualitative model evaluation was attempted at this stage of the model contruction. The output of the biological model was fed into a specially built budgetary model, which was used to assess the relative importance of alternative research, measured by its impact on rubber yield and profitability. Alternative research was simulated through sensitivity analysis and by grouping parameters... MenosA systems approach was demonstrated to determine priorities and resource allocation for agricultural research in Brazil with the objective being to alleviate the subjectivity of the process which often has led to internal conflict and loss of efficiency in the traditional approach. The research program in natural rubber, an important commodity in Brazil, was chosen to represent the single commodity research in that country. A review of the Brazilian rubber farmers and problems faced by them, was given together with a description of the natural rubber research organization. Performance was assessed at the two primary rubber producing centers of Brazil, Manaus and S. Paulo. A preliminary crop growth model was built in order to simulate rubber growth and produc-tion. The model consists of a carbon & water flow can simulate the modrubber growth and yield on daily basis. Two submodels were developed to determine the nutrient uptake and yield losses resulting from foliar diseases. The model was constructed using data from Brazil but data from other producing countries was also included when information was not available. Only a qualitative model evaluation was attempted at this stage of the model contruction. The output of the biological model was fed into a specially built budgetary model, which was used to assess the relative importance of alternative research, measured by its impact on rubber yield and profitability. Alternative research was simulated through sensitivity analys... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Management; Modelo; Production; Resource allocations; Rsearch; Sistema; Systems. |
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Thesagro: |
Administração de Pesquisa; Agricultura; Análise; Borracha; Crescimento; Pesquisa; Produção; Simulação; Sistema de Produção. |
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Thesaurus Nal: |
agriculture; Brazil; planning; rubber; simulation models; systems analysis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02553nam a2200409 a 4500
001 1556590
005 1996-12-17
008 1988 bl uuuu m 00u1 u #d
100 1 $aCASTRO, A. M. G. de
245 $aA systems approach to determining priorities for natural rubber research in Brasil.
260 $aReading: University of Reading$c1988
300 $a290p.
500 $aPhD. Thesis.
520 $aA systems approach was demonstrated to determine priorities and resource allocation for agricultural research in Brazil with the objective being to alleviate the subjectivity of the process which often has led to internal conflict and loss of efficiency in the traditional approach. The research program in natural rubber, an important commodity in Brazil, was chosen to represent the single commodity research in that country. A review of the Brazilian rubber farmers and problems faced by them, was given together with a description of the natural rubber research organization. Performance was assessed at the two primary rubber producing centers of Brazil, Manaus and S. Paulo. A preliminary crop growth model was built in order to simulate rubber growth and produc-tion. The model consists of a carbon & water flow can simulate the modrubber growth and yield on daily basis. Two submodels were developed to determine the nutrient uptake and yield losses resulting from foliar diseases. The model was constructed using data from Brazil but data from other producing countries was also included when information was not available. Only a qualitative model evaluation was attempted at this stage of the model contruction. The output of the biological model was fed into a specially built budgetary model, which was used to assess the relative importance of alternative research, measured by its impact on rubber yield and profitability. Alternative research was simulated through sensitivity analysis and by grouping parameters...
650 $aagriculture
650 $aBrazil
650 $aplanning
650 $arubber
650 $asimulation models
650 $asystems analysis
650 $aAdministração de Pesquisa
650 $aAgricultura
650 $aAnálise
650 $aBorracha
650 $aCrescimento
650 $aPesquisa
650 $aProdução
650 $aSimulação
650 $aSistema de Produção
653 $aBrasil
653 $aManagement
653 $aModelo
653 $aProduction
653 $aResource allocations
653 $aRsearch
653 $aSistema
653 $aSystems
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 72 | |
| 4. |  | CASTRO, A. M. G. de; LIMA, S. M. V. Técnica Delphi. In: DUARTE, J.; BARROS, A. (Org.). Métodos e técnicas de pesquisa em comunicação: material de site. São Paulo: Atlas, 2005. não paginado Este capítulo foi publicado na internet, no site : .O capítulo não se encontra impresso no livro mas está relacionado no sumário . Encontra-se no Anexo 1 do registro nº LV2005.00240.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | QUIRINO, T. R.; CASTRO, A. M. G. de. A EMBRAPA e a universidade. Cadernos de Ciência e Tecnologia, Brasília, v.9, n.1/3, p.82-96, jan./dez.l992. Apresentado na Reunião Conjunta dos Coordenadores dos cursos de pós-graduação na área da Profissões agropecuárias; CAPES/EMBRAPA; Piracicaba,SP; out.1991.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 72 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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