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Registro Completo |
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
10/11/1998 |
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Data da última atualização: |
03/04/2014 |
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Autoria: |
OLIVEIRA, S. J. de M. |
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Afiliação: |
Embrapa Rondonia - Caixa Postal 406 - CEP 78900-000, Porto Velho, RO; E-mail: samuel@enter-net.com.br. |
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Título: |
Custos e lucratividade da capicultura em Rolim de Moura, Rondonia. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Revista de Economia, Curitiba, v.22, n.20, p.117-135, 1996. |
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Idioma: |
Português |
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Conteúdo: |
A cafeicultura tem sido uma boa opcao, dos pontos de vista agronomico e financeiro, para os produtores rurais de Rondonia, que e o quarto produtor de cafe do Brasil. Entretanto ha carencia de informacoes economicas sobre a lavoura no estado. Este trabalho se propos a comparar custos e rentabilidade da cafeicultura em dois diferentes sistemas de cultivo em Rolim de Moura, Rondonia. A cultura se mostrou como atividade viavel economicamente, principalmente quando se considerou o sistema como uso mais intensivo de tecnologia. |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Café; Custo; Lucro; Rentabilidade. |
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Thesaurus Nal: |
cost benefit analysis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49749/1/Revista-de-Economia-id37060001.pdf
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Marc: |
LEADER 01041naa a2200193 a 4500
001 1700845
005 2014-04-03
008 1996 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, S. J. de M.
245 $aCustos e lucratividade da capicultura em Rolim de Moura, Rondonia.
260 $c1996
520 $aA cafeicultura tem sido uma boa opcao, dos pontos de vista agronomico e financeiro, para os produtores rurais de Rondonia, que e o quarto produtor de cafe do Brasil. Entretanto ha carencia de informacoes economicas sobre a lavoura no estado. Este trabalho se propos a comparar custos e rentabilidade da cafeicultura em dois diferentes sistemas de cultivo em Rolim de Moura, Rondonia. A cultura se mostrou como atividade viavel economicamente, principalmente quando se considerou o sistema como uso mais intensivo de tecnologia.
650 $acost benefit analysis
650 $aCafé
650 $aCusto
650 $aLucro
650 $aRentabilidade
653 $aBrasil
773 $tRevista de Economia, Curitiba$gv.22, n.20, p.117-135, 1996.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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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: |
13/06/2022 |
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Data da última atualização: |
13/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ARAÚJO, E. P. de; CALDAS, E. D.; OLIVEIRA FILHO, E. C. de. |
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Afiliação: |
ESMERALDA PEREIRA DE ARAÚJO; ELOISA DUTRA CALDAS; EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC. |
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Título: |
Pesticides in surface freshwater: a critical review. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Monitoring and Assessment, v. 194, n. 452, 2022. |
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Páginas: |
25 p. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to critically review studies published up to November 2021 that investigated the presence of pesticides in surface freshwater to answer three questions: (1) in which countries were the studies conducted? (2) which pesticides are most evaluated and detected? and (3) which pesticides have the highest concentrations? Using the Prisma protocol, 146 articles published from 1976 to November 2021 were included in this analysis: 127 studies used grab sampling, 10 used passive sampling, and 9 used both sampling techniques. In the 45-year historical series, the USA, China, and Spain were the countries that conducted the highest number of studies. Atrazine was the most evaluated pesticide (56% of the studies), detected in 43% of the studies using grab sampling, and the most detected in passive sampling studies (68%). The compounds with the highest maximum and mean concentrations in the grab sampling were molinate (211.38 µg/L) and bentazone (53 µg/L), respectively, and in passive sampling, they were oxyfluorfen (16.8 µg/L) and atrazine (4.8 μg/L), respectively. The levels found for atrazine, p,p′-DDD, and heptachlor in Brazil were higher than the regulatory levels for superficial water in the country. The concentrations exceeded the toxicological endpoint for at least 11 pesticides, including atrazine (Daphnia LC50 and fish NOAEC), cypermethrin (algae EC50, Daphnia and fish LC50; fish NOAEC), and chlorpyrifos (Daphnia and fish LC50; fish NOAEC). These results can be used for planning pesticide monitoring programs in surface freshwater, at regional and global levels, and for establishing or updating water quality regulations. MenosThe objective of this study was to critically review studies published up to November 2021 that investigated the presence of pesticides in surface freshwater to answer three questions: (1) in which countries were the studies conducted? (2) which pesticides are most evaluated and detected? and (3) which pesticides have the highest concentrations? Using the Prisma protocol, 146 articles published from 1976 to November 2021 were included in this analysis: 127 studies used grab sampling, 10 used passive sampling, and 9 used both sampling techniques. In the 45-year historical series, the USA, China, and Spain were the countries that conducted the highest number of studies. Atrazine was the most evaluated pesticide (56% of the studies), detected in 43% of the studies using grab sampling, and the most detected in passive sampling studies (68%). The compounds with the highest maximum and mean concentrations in the grab sampling were molinate (211.38 µg/L) and bentazone (53 µg/L), respectively, and in passive sampling, they were oxyfluorfen (16.8 µg/L) and atrazine (4.8 μg/L), respectively. The levels found for atrazine, p,p′-DDD, and heptachlor in Brazil were higher than the regulatory levels for superficial water in the country. The concentrations exceeded the toxicological endpoint for at least 11 pesticides, including atrazine (Daphnia LC50 and fish NOAEC), cypermethrin (algae EC50, Daphnia and fish LC50; fish NOAEC), and chlorpyrifos (Daphnia and fish LC50; fish NOAEC... Mostrar Tudo |
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Thesagro: |
Água Doce; Contaminação; Herbicida; Pesticida. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02255naa a2200205 a 4500
001 2143979
005 2022-06-13
008 2022 bl uuuu u00u1 u #d
100 1 $aARAÚJO, E. P. de
245 $aPesticides in surface freshwater$ba critical review.$h[electronic resource]
260 $c2022
300 $a25 p.
520 $aThe objective of this study was to critically review studies published up to November 2021 that investigated the presence of pesticides in surface freshwater to answer three questions: (1) in which countries were the studies conducted? (2) which pesticides are most evaluated and detected? and (3) which pesticides have the highest concentrations? Using the Prisma protocol, 146 articles published from 1976 to November 2021 were included in this analysis: 127 studies used grab sampling, 10 used passive sampling, and 9 used both sampling techniques. In the 45-year historical series, the USA, China, and Spain were the countries that conducted the highest number of studies. Atrazine was the most evaluated pesticide (56% of the studies), detected in 43% of the studies using grab sampling, and the most detected in passive sampling studies (68%). The compounds with the highest maximum and mean concentrations in the grab sampling were molinate (211.38 µg/L) and bentazone (53 µg/L), respectively, and in passive sampling, they were oxyfluorfen (16.8 µg/L) and atrazine (4.8 μg/L), respectively. The levels found for atrazine, p,p′-DDD, and heptachlor in Brazil were higher than the regulatory levels for superficial water in the country. The concentrations exceeded the toxicological endpoint for at least 11 pesticides, including atrazine (Daphnia LC50 and fish NOAEC), cypermethrin (algae EC50, Daphnia and fish LC50; fish NOAEC), and chlorpyrifos (Daphnia and fish LC50; fish NOAEC). These results can be used for planning pesticide monitoring programs in surface freshwater, at regional and global levels, and for establishing or updating water quality regulations.
650 $aÁgua Doce
650 $aContaminação
650 $aHerbicida
650 $aPesticida
700 1 $aCALDAS, E. D.
700 1 $aOLIVEIRA FILHO, E. C. de
773 $tEnvironmental Monitoring and Assessment$gv. 194, n. 452, 2022.
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Embrapa Cerrados (CPAC) |
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