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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
15/05/1992 |
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Data da última atualização: |
15/05/1992 |
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Autoria: |
PORTO, M. C. M. |
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Afiliação: |
EMBRAPA-CNPMF. |
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Título: |
Reflexo da politica agricola na cultura da mandioca no Brasil. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Revista Brasileira de Mandioca, v.5, n.2, p.35-53, Cruz das Almas, 1986. |
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ISSN: |
0101-563X |
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Idioma: |
Português |
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Conteúdo: |
Apesar de sua importancia como cultura alimentar, forrageira e industrial, a mandioca tem sofrido um processo de estagnacao, ou mesmo regressao, no cenario agricola brasileiro, causado por uma politica voltada para o incentivo as culturas de exportacao industriais e energeticas. Tal situacao e mostrada atraves de dados de area cultivada e producao de raizes nos ultimos 40 anos, que evidenciam uma queda da produtividade da cultura, principalmente a partir de 1972. Os fatores terra, credito e mercado sao tambem abordados, mostrando que a cultura e a que menos estimolo crediticio tem recebido do Governo, se comparada com outras culturas alimentares (arroz, feijao, milho), a cana-de-acucar e a soja. Outros entrave importante para o crescimento dos niveis de produção e oferta do produto e a limitacao da demanda, vez que o principal destino da producao e o fabrico de farinha de mesa, estando o consumo desta bastante limitado. Tambem a disponibilidade "per-capita" de raizes tem sofrido reducoes nos ultimos anos, passando de 89,73 kg/habitante/ano em 1978 para 76,70kg/habitante/ano em 1982. |
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Palavras-Chave: |
area cultivada; Comsunption; Market; Production. |
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Thesagro: |
Consumo; Crédito; Mercado; Pesquisa; Produção. |
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Thesaurus Nal: |
cassava; credit; research; yields. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01818naa a2200289 a 4500
001 1632164
005 1992-05-15
008 1986 bl uuuu u00u1 u #d
022 $a0101-563X
100 1 $aPORTO, M. C. M.
245 $aReflexo da politica agricola na cultura da mandioca no Brasil.
260 $c1986
520 $aApesar de sua importancia como cultura alimentar, forrageira e industrial, a mandioca tem sofrido um processo de estagnacao, ou mesmo regressao, no cenario agricola brasileiro, causado por uma politica voltada para o incentivo as culturas de exportacao industriais e energeticas. Tal situacao e mostrada atraves de dados de area cultivada e producao de raizes nos ultimos 40 anos, que evidenciam uma queda da produtividade da cultura, principalmente a partir de 1972. Os fatores terra, credito e mercado sao tambem abordados, mostrando que a cultura e a que menos estimolo crediticio tem recebido do Governo, se comparada com outras culturas alimentares (arroz, feijao, milho), a cana-de-acucar e a soja. Outros entrave importante para o crescimento dos niveis de produção e oferta do produto e a limitacao da demanda, vez que o principal destino da producao e o fabrico de farinha de mesa, estando o consumo desta bastante limitado. Tambem a disponibilidade "per-capita" de raizes tem sofrido reducoes nos ultimos anos, passando de 89,73 kg/habitante/ano em 1978 para 76,70kg/habitante/ano em 1982.
650 $acassava
650 $acredit
650 $aresearch
650 $ayields
650 $aConsumo
650 $aCrédito
650 $aMercado
650 $aPesquisa
650 $aProdução
653 $aarea cultivada
653 $aComsunption
653 $aMarket
653 $aProduction
773 $tRevista Brasileira de Mandioca$gv.5, n.2, p.35-53, Cruz das Almas, 1986.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/09/2008 |
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Data da última atualização: |
15/09/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
BARTZ, M. L. C.; PASINI, A.; DORIOZ, J.; OLIVEIRA, C. S.; AZEVEDO, P. T. M.; FERNANDES, J. de O.; BROWN, G. G. |
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Afiliação: |
Marie Luise Carolina Bartz, UEL; Amarildo Pasini, UEL; Julie Dorioz, UEL/France; Priscila T. M. Azevedo, USP; Juliana de Oliveira Fernandes, UEL; A George G. Brown, Embrapa Florestas. |
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Título: |
Earthworms in organic and conventional coffee cultivations in Lerroville - PR, Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Earthworm species diversity varies with climate, soil, and vegetation conditions, but more
significantly so with anthropic action. These organisms are, therefore, sensitive to the
environmental conditions, and studies are needed in order to identify species, by evaluating different environments under different disturbance and regeneration processes. The objective of this study was to identify earthworm species in organic and conventional coffee cultivations. The study was conducted in the city of Lerroville ? PR, Brazil, in five coffee cultivation areas: 1) organic coffee (4 years), without soil cover (CO1); 2) organic coffee (7 years), where Leucena sp trees and grass were planted between coffee rows (CO2); 3) organic coffee planted in dense stands (7 years), with permanent soil cover (CO3); 4) conventional coffee intercropped with corn, without soil cover (CC1); 5) conventional coffee intercropped with corn, without soil cover (CC2); 6) native forest (NF). The CO1, CC1, and NF treatments were in areas where the soil was classified as Nitosol, while CO2, CO3, and CC2 were in Latosol areas. Eight samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-20 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were
then separated into adults and juveniles and identified at the genus and species levels. No earthworms were found in the CC2 area. The following earthworms were identified: NF - Glossoscolex sp., Dichogaster saliens, and enchytraeids of the genus Fridericia; CO1 - D saliens, D. affinis and enchytraeids of the genus Fridericia; CO2 - Amynthas gracilis, Pontoscolex corethrurus, and enchytraeids of the genus Fridericia; CO3 - Pontoscolex corethrurus; CC1 - enchytraeids of the genus Fridericia. It is important to point out that a major part of the earthworms were juveniles and that individuals in areas CO1, CC1 and part of CO2 were in aestivation. It could be observed that organic cultivation provided greater earthworm diversity when compared with conventional cultivation. Nevertheless, the forest had the highest diversity and contained native species, while the species in the cropping areas were exotic and peregrine. Evaluations in the rainy period are required for a better understanding of these results. Financial support: Agrisus Foundation MenosEarthworm species diversity varies with climate, soil, and vegetation conditions, but more
significantly so with anthropic action. These organisms are, therefore, sensitive to the
environmental conditions, and studies are needed in order to identify species, by evaluating different environments under different disturbance and regeneration processes. The objective of this study was to identify earthworm species in organic and conventional coffee cultivations. The study was conducted in the city of Lerroville ? PR, Brazil, in five coffee cultivation areas: 1) organic coffee (4 years), without soil cover (CO1); 2) organic coffee (7 years), where Leucena sp trees and grass were planted between coffee rows (CO2); 3) organic coffee planted in dense stands (7 years), with permanent soil cover (CO3); 4) conventional coffee intercropped with corn, without soil cover (CC1); 5) conventional coffee intercropped with corn, without soil cover (CC2); 6) native forest (NF). The CO1, CC1, and NF treatments were in areas where the soil was classified as Nitosol, while CO2, CO3, and CC2 were in Latosol areas. Eight samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-20 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were
then separated into adults and juveniles and identified at the genus and species levels. No eart... Mostrar Tudo |
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Palavras-Chave: |
Cultivo convencional; Cultivo orgânico. |
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Thesagro: |
Café; Minhoca. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03391naa a2200241 a 4500
001 1314752
005 2008-09-15
008 2008 bl --- 0-- u #d
100 1 $aBARTZ, M. L. C.
245 $aEarthworms in organic and conventional coffee cultivations in Lerroville - PR, Brazil.
260 $c2008
520 $aEarthworm species diversity varies with climate, soil, and vegetation conditions, but more significantly so with anthropic action. These organisms are, therefore, sensitive to the environmental conditions, and studies are needed in order to identify species, by evaluating different environments under different disturbance and regeneration processes. The objective of this study was to identify earthworm species in organic and conventional coffee cultivations. The study was conducted in the city of Lerroville ? PR, Brazil, in five coffee cultivation areas: 1) organic coffee (4 years), without soil cover (CO1); 2) organic coffee (7 years), where Leucena sp trees and grass were planted between coffee rows (CO2); 3) organic coffee planted in dense stands (7 years), with permanent soil cover (CO3); 4) conventional coffee intercropped with corn, without soil cover (CC1); 5) conventional coffee intercropped with corn, without soil cover (CC2); 6) native forest (NF). The CO1, CC1, and NF treatments were in areas where the soil was classified as Nitosol, while CO2, CO3, and CC2 were in Latosol areas. Eight samplings were performed in each area during the dry period (winter), using the TSBF (Tropical Soil Biology and Fertility) methodology, which consists in removing 25 × 25 cm monoliths from the 0-20 cm layer. The earthworms were screened manually and preserved in 4% formaldehyde, and were then separated into adults and juveniles and identified at the genus and species levels. No earthworms were found in the CC2 area. The following earthworms were identified: NF - Glossoscolex sp., Dichogaster saliens, and enchytraeids of the genus Fridericia; CO1 - D saliens, D. affinis and enchytraeids of the genus Fridericia; CO2 - Amynthas gracilis, Pontoscolex corethrurus, and enchytraeids of the genus Fridericia; CO3 - Pontoscolex corethrurus; CC1 - enchytraeids of the genus Fridericia. It is important to point out that a major part of the earthworms were juveniles and that individuals in areas CO1, CC1 and part of CO2 were in aestivation. It could be observed that organic cultivation provided greater earthworm diversity when compared with conventional cultivation. Nevertheless, the forest had the highest diversity and contained native species, while the species in the cropping areas were exotic and peregrine. Evaluations in the rainy period are required for a better understanding of these results. Financial support: Agrisus Foundation
650 $aCafé
650 $aMinhoca
653 $aCultivo convencional
653 $aCultivo orgânico
700 1 $aPASINI, A.
700 1 $aDORIOZ, J.
700 1 $aOLIVEIRA, C. S.
700 1 $aAZEVEDO, P. T. M.
700 1 $aFERNANDES, J. de O.
700 1 $aBROWN, G. G.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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