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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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Data corrente: |
13/03/2020 |
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Data da última atualização: |
07/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
STEINMETZ, S.; CUADRA, S. V.; ALMEIDA, I. R. de; STRECK, N. A.; ZANON, A. J.; RIBAS, G. G.; SILVA, M. R. da; BENEDETTI, R. P.; CERA, J. C.; SILVA, S. C. da; HEINEMANN, A. B. |
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Afiliação: |
SILVIO STEINMETZ, CPACT; SANTIAGO VIANNA CUADRA, CPACT; IVAN RODRIGUES DE ALMEIDA, CPACT; NEREU AUGUSTO STRECK; ALENCAR JÚNIOR ZANON; GIOVANA GHISLENE RIBAS; MICHEL ROCHA DA SILVA; RÔMULO PULCINELLI BENEDETTI; JOSSANA CEOLIN CERA; SILVANDO CARLOS DA SILVA, CNPAF; ALEXANDRE BRYAN HEINEMANN, CNPAF. |
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Título: |
Irrigated rice sowing periods based on simulated grain yield. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Agrometeoros, Passo Fundo, v. 27, n. 2, p. 377-386, dez. 2019. |
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ISSN: |
2526-7043 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT. This study aimed to establish the sowing periods with lower climatic risk for irrigated rice cultivation in the State of Rio Grande do Sul, Brazil, using the grain yield simulated by the SimulArroz which is an eco-physiological model based in processes that also simulates the development and the growth of the crop. The simulated grain yields were normalized for each of the four groups of cultivars, referenced as Relative Yield (YRel), considering the values of Reference Yield (YRef). The YRef considered was equal to the 80 percentile for the cultivars of groups 1 and 2 (Very short and Short cycle, respectively), and to the 90 percentile, for the cultivars of groups 3 and 4 (Medium and Long cycle, respectively). A successful year was when the YRel value was equal to or greater than 60% of YRef. These years were used to classify the climatic risk levels of 20% (80% success), 30% (70% success) and 40% (60% success). The preferential sowing periods for the four cultivar groups, at three levels of climatic risk, were established for all counties of the State of Rio Grande do Sul. The results indicated that the beginning of sowing occurs, depending on the group of cultivars, on September 1st or September 11th. On the other hand, the final sowing date varies with the group of cultivars and the level of risk involved, being December 20th the last sowing date for group 1 (Very short cycle). It is concluded that the SimulArroz model is appropriate to define the sowing periods of irrigated rice in Rio Grande do Sul considering grain yield, cycle of the cultivars and level of climatic risk. MenosABSTRACT. This study aimed to establish the sowing periods with lower climatic risk for irrigated rice cultivation in the State of Rio Grande do Sul, Brazil, using the grain yield simulated by the SimulArroz which is an eco-physiological model based in processes that also simulates the development and the growth of the crop. The simulated grain yields were normalized for each of the four groups of cultivars, referenced as Relative Yield (YRel), considering the values of Reference Yield (YRef). The YRef considered was equal to the 80 percentile for the cultivars of groups 1 and 2 (Very short and Short cycle, respectively), and to the 90 percentile, for the cultivars of groups 3 and 4 (Medium and Long cycle, respectively). A successful year was when the YRel value was equal to or greater than 60% of YRef. These years were used to classify the climatic risk levels of 20% (80% success), 30% (70% success) and 40% (60% success). The preferential sowing periods for the four cultivar groups, at three levels of climatic risk, were established for all counties of the State of Rio Grande do Sul. The results indicated that the beginning of sowing occurs, depending on the group of cultivars, on September 1st or September 11th. On the other hand, the final sowing date varies with the group of cultivars and the level of risk involved, being December 20th the last sowing date for group 1 (Very short cycle). It is concluded that the SimulArroz model is appropriate to define the sowing period... Mostrar Tudo |
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Thesagro: |
Arroz; Arroz Irrigado; Clima; Oryza Sativa; Risco Climático. |
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Thesaurus Nal: |
Agricultural zoning; Climate; Crop models; Rice. |
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Categoria do assunto: |
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X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211846/1/STEINMETZ2019-26440-127189-1-PB.pdf
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Marc: |
LEADER 02567naa a2200361 a 4500
001 2121230
005 2020-04-07
008 2019 bl uuuu u00u1 u #d
022 $a2526-7043
100 1 $aSTEINMETZ, S.
245 $aIrrigated rice sowing periods based on simulated grain yield.$h[electronic resource]
260 $c2019
520 $aABSTRACT. This study aimed to establish the sowing periods with lower climatic risk for irrigated rice cultivation in the State of Rio Grande do Sul, Brazil, using the grain yield simulated by the SimulArroz which is an eco-physiological model based in processes that also simulates the development and the growth of the crop. The simulated grain yields were normalized for each of the four groups of cultivars, referenced as Relative Yield (YRel), considering the values of Reference Yield (YRef). The YRef considered was equal to the 80 percentile for the cultivars of groups 1 and 2 (Very short and Short cycle, respectively), and to the 90 percentile, for the cultivars of groups 3 and 4 (Medium and Long cycle, respectively). A successful year was when the YRel value was equal to or greater than 60% of YRef. These years were used to classify the climatic risk levels of 20% (80% success), 30% (70% success) and 40% (60% success). The preferential sowing periods for the four cultivar groups, at three levels of climatic risk, were established for all counties of the State of Rio Grande do Sul. The results indicated that the beginning of sowing occurs, depending on the group of cultivars, on September 1st or September 11th. On the other hand, the final sowing date varies with the group of cultivars and the level of risk involved, being December 20th the last sowing date for group 1 (Very short cycle). It is concluded that the SimulArroz model is appropriate to define the sowing periods of irrigated rice in Rio Grande do Sul considering grain yield, cycle of the cultivars and level of climatic risk.
650 $aAgricultural zoning
650 $aClimate
650 $aCrop models
650 $aRice
650 $aArroz
650 $aArroz Irrigado
650 $aClima
650 $aOryza Sativa
650 $aRisco Climático
700 1 $aCUADRA, S. V.
700 1 $aALMEIDA, I. R. de
700 1 $aSTRECK, N. A.
700 1 $aZANON, A. J.
700 1 $aRIBAS, G. G.
700 1 $aSILVA, M. R. da
700 1 $aBENEDETTI, R. P.
700 1 $aCERA, J. C.
700 1 $aSILVA, S. C. da
700 1 $aHEINEMANN, A. B.
773 $tAgrometeoros, Passo Fundo$gv. 27, n. 2, p. 377-386, dez. 2019.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
20/05/2019 |
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Data da última atualização: |
13/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ARAUJO, J. B. C. N.; SOUZA, A. N.; JOAQUIM, M. S.; MATTOS, L. M. de; LUSTOSA JUNIOR, I. M. |
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Afiliação: |
JULIANA B. C. N. ARAUJO, UNB; UNB; UNB; LUCIANO MANSOR DE MATTOS, CPAC; UNB. |
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Título: |
Use of the activity-based costing methodology (ABC) in the cost analysis of successional agroforestry systems. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Agroforestry Systems, p. 1-10, 28 February 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Facing increasingly competitive market demands, producers must act as managers of their property, knowing the strengths and bottlenecks in production systems. In this perspective, there is a methodology activity-based costing system (ABC), a cost management tool, used when there is a mix of products, to determine the unit costs of production. This work aimed to apply the activity-based costing system to activities in a successional agroforestry system, that produces nine products. The methodology was applied to the indirect costs of the system. When applying the methodology, it was found that maize and okra products presented negative contribution margins, showing that the respective production costs exceed the sale value of the product. The other products had positive contribution margins, with emphasis on yam and strawberry. The ABC system is efficient for management and administration of agroforestry enterprises. |
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Palavras-Chave: |
Sistema ABC; Sistema de custeio baseado em atividades. |
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Thesagro: |
Custo de Produção; Economia Florestal; Método. |
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Categoria do assunto: |
E Economia e Indústria Agrícola |
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Marc: |
LEADER 01661naa a2200229 a 4500
001 2109169
005 2020-01-13
008 2019 bl uuuu u00u1 u #d
100 1 $aARAUJO, J. B. C. N.
245 $aUse of the activity-based costing methodology (ABC) in the cost analysis of successional agroforestry systems.$h[electronic resource]
260 $c2019
520 $aAbstract: Facing increasingly competitive market demands, producers must act as managers of their property, knowing the strengths and bottlenecks in production systems. In this perspective, there is a methodology activity-based costing system (ABC), a cost management tool, used when there is a mix of products, to determine the unit costs of production. This work aimed to apply the activity-based costing system to activities in a successional agroforestry system, that produces nine products. The methodology was applied to the indirect costs of the system. When applying the methodology, it was found that maize and okra products presented negative contribution margins, showing that the respective production costs exceed the sale value of the product. The other products had positive contribution margins, with emphasis on yam and strawberry. The ABC system is efficient for management and administration of agroforestry enterprises.
650 $aCusto de Produção
650 $aEconomia Florestal
650 $aMétodo
653 $aSistema ABC
653 $aSistema de custeio baseado em atividades
700 1 $aSOUZA, A. N.
700 1 $aJOAQUIM, M. S.
700 1 $aMATTOS, L. M. de
700 1 $aLUSTOSA JUNIOR, I. M.
773 $tAgroforestry Systems, p. 1-10, 28 February 2019.
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