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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Unidades Centrais. |
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Data corrente: |
26/04/2006 |
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Data da última atualização: |
24/10/2011 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
GOMES, A. da S.; FERREIRA, L. H. G.; BENDER, R. R. |
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Título: |
Uso de fosfato natural no cultivo de arroz, soja e milho em rotação, no sistema plantio direto. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2005. |
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Páginas: |
35p. |
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Série: |
(Embrapa Clima Temperado. Boletim de Pesquisa e Desenvolvimento, 20). |
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Idioma: |
Português |
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Conteúdo: |
Os solos de várzea do Rio Grande do Sul (RS) apresentam, assim com grande partes dos solos brasileiros, baixa disponibilidade de fósforo (P) para as plantas, requerendo adições frequentes deste nutrientes para que as culturas expressem seu potencial produtivo e se mostrem economicamente viáveis. Nos últimos anos, os fosfatos naturais reativos (FNr) vêm se consolidando como forte alternativas aos fosfatos soluveis (FS), no suprimento de P às plantas. |
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Palavras-Chave: |
Fosfato solúvel; Sistema convencional; Sistematização do terreno; Solo de várzea. |
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Thesagro: |
Análise Econômica; Plantio Direto; Rotação de Cultura. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43871/1/boletim-20.pdf
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Marc: |
LEADER 01223nam a2200241 a 4500
001 1744886
005 2011-10-24
008 2005 bl uuuu u0uu1 u #d
100 1 $aGOMES, A. da S.
245 $aUso de fosfato natural no cultivo de arroz, soja e milho em rotação, no sistema plantio direto.
260 $aPelotas: Embrapa Clima Temperado$c2005
300 $a35p.
490 $a(Embrapa Clima Temperado. Boletim de Pesquisa e Desenvolvimento, 20).
520 $aOs solos de várzea do Rio Grande do Sul (RS) apresentam, assim com grande partes dos solos brasileiros, baixa disponibilidade de fósforo (P) para as plantas, requerendo adições frequentes deste nutrientes para que as culturas expressem seu potencial produtivo e se mostrem economicamente viáveis. Nos últimos anos, os fosfatos naturais reativos (FNr) vêm se consolidando como forte alternativas aos fosfatos soluveis (FS), no suprimento de P às plantas.
650 $aAnálise Econômica
650 $aPlantio Direto
650 $aRotação de Cultura
653 $aFosfato solúvel
653 $aSistema convencional
653 $aSistematização do terreno
653 $aSolo de várzea
700 1 $aFERREIRA, L. H. G.
700 1 $aBENDER, R. R.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
23/11/2000 |
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Data da última atualização: |
09/03/2006 |
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Autoria: |
PRANDO, H. F.; SOSA-GOMEZ, D.R.; ROSADO NETO, G. H. |
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Título: |
Control aspects of oryzophagus oryzae with beauveria bassiana, metarhizium anisopliae and fipronil in water-seeded rice. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000. |
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Volume: |
v.1 |
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Páginas: |
p.536. |
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Idioma: |
Inglês |
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Conteúdo: |
The rice weevil oryzophagus oryzae (Costa Lima) is associated with rice yield losses in Rio Grande do Sul and Santa Catarina states, Brazil. In Rio Grande do Sul, annual losses range from 13.5 million dollars to over 21.0 million dollars. In order to minimize this, rice growers use extremely toxic insecticides with irrigation water. The laboratory tests were concerned with the viability and susceptibility of the entomopathogenic fungi Metarhizium anisopliae (CNPSoMa12) and Beauveria bassiana (Ep01 and CB66) to sunlight and ultra-violet light. The effect of cuticle lipid extracts of O. oryzae and Cosmopolites sordidus Germar on these microorganisms, was investigated. O. oryzae and C. sordidus lipid extracts and hexane and three isolates of entomopathogenic fungi (Ep01, CB66, and Ma12) were used in a 3 x 3 factorial design. The field experiments were conducted in two consecutive years. A total of 13 treatments in four replications and in a completely randomized plots (3 m x 6 m) was used. Rice cultivar, Epagri 108, was water- seeded under 10 cm layer of water. All treatments were hand applied using a watering pot three days after seeding, except where seeds were treated. The viability rate of conidia isolates of M. anisopliae and of B. bassiana was 95%, 89% and 86% for isolates Ma12, Ep01 and CB66, respectively. The isolate CB66 was significantly affected by sunlight after a 4 hour-exposition. The cuticle lipid extract of O. oryzae significantly stimulated germination compared to the cuticle lipid extract of C. sordidus. The isolate Ep01 showed greater germination and growth performance. Field experiments showed that biological and chemical treatments reduced significantly the amount of O. oryzae in treated plots as compared to control treatment. Fipronil treatments caused significantly reduction on the number of larvae, higher plants and lower water content of grains. The use of the entomopathogenic fungi B. bassiana and M. anisopliae to-control O. oryzae is a feasible practice applied in combination with chemicals. Fipronil is efficient to control O. oryzae and can be applied by hand (watering pot) after seeding or by seed treatment methods. MenosThe rice weevil oryzophagus oryzae (Costa Lima) is associated with rice yield losses in Rio Grande do Sul and Santa Catarina states, Brazil. In Rio Grande do Sul, annual losses range from 13.5 million dollars to over 21.0 million dollars. In order to minimize this, rice growers use extremely toxic insecticides with irrigation water. The laboratory tests were concerned with the viability and susceptibility of the entomopathogenic fungi Metarhizium anisopliae (CNPSoMa12) and Beauveria bassiana (Ep01 and CB66) to sunlight and ultra-violet light. The effect of cuticle lipid extracts of O. oryzae and Cosmopolites sordidus Germar on these microorganisms, was investigated. O. oryzae and C. sordidus lipid extracts and hexane and three isolates of entomopathogenic fungi (Ep01, CB66, and Ma12) were used in a 3 x 3 factorial design. The field experiments were conducted in two consecutive years. A total of 13 treatments in four replications and in a completely randomized plots (3 m x 6 m) was used. Rice cultivar, Epagri 108, was water- seeded under 10 cm layer of water. All treatments were hand applied using a watering pot three days after seeding, except where seeds were treated. The viability rate of conidia isolates of M. anisopliae and of B. bassiana was 95%, 89% and 86% for isolates Ma12, Ep01 and CB66, respectively. The isolate CB66 was significantly affected by sunlight after a 4 hour-exposition. The cuticle lipid extract of O. oryzae significantly stimulated germination compared... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Inseto praga; Pest insects. |
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Thesagro: |
Arroz; Controle Biológico. |
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Thesaurus NAL: |
biological control; Brazil; rice. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02967naa a2200265 a 4500
001 1462585
005 2006-03-09
008 2000 bl uuuu u00u1 u #d
100 1 $aPRANDO, H. F.
245 $aControl aspects of oryzophagus oryzae with beauveria bassiana, metarhizium anisopliae and fipronil in water-seeded rice.
260 $c2000
300 $ap.536. v.1
490 $vv.1
520 $aThe rice weevil oryzophagus oryzae (Costa Lima) is associated with rice yield losses in Rio Grande do Sul and Santa Catarina states, Brazil. In Rio Grande do Sul, annual losses range from 13.5 million dollars to over 21.0 million dollars. In order to minimize this, rice growers use extremely toxic insecticides with irrigation water. The laboratory tests were concerned with the viability and susceptibility of the entomopathogenic fungi Metarhizium anisopliae (CNPSoMa12) and Beauveria bassiana (Ep01 and CB66) to sunlight and ultra-violet light. The effect of cuticle lipid extracts of O. oryzae and Cosmopolites sordidus Germar on these microorganisms, was investigated. O. oryzae and C. sordidus lipid extracts and hexane and three isolates of entomopathogenic fungi (Ep01, CB66, and Ma12) were used in a 3 x 3 factorial design. The field experiments were conducted in two consecutive years. A total of 13 treatments in four replications and in a completely randomized plots (3 m x 6 m) was used. Rice cultivar, Epagri 108, was water- seeded under 10 cm layer of water. All treatments were hand applied using a watering pot three days after seeding, except where seeds were treated. The viability rate of conidia isolates of M. anisopliae and of B. bassiana was 95%, 89% and 86% for isolates Ma12, Ep01 and CB66, respectively. The isolate CB66 was significantly affected by sunlight after a 4 hour-exposition. The cuticle lipid extract of O. oryzae significantly stimulated germination compared to the cuticle lipid extract of C. sordidus. The isolate Ep01 showed greater germination and growth performance. Field experiments showed that biological and chemical treatments reduced significantly the amount of O. oryzae in treated plots as compared to control treatment. Fipronil treatments caused significantly reduction on the number of larvae, higher plants and lower water content of grains. The use of the entomopathogenic fungi B. bassiana and M. anisopliae to-control O. oryzae is a feasible practice applied in combination with chemicals. Fipronil is efficient to control O. oryzae and can be applied by hand (watering pot) after seeding or by seed treatment methods.
650 $abiological control
650 $aBrazil
650 $arice
650 $aArroz
650 $aControle Biológico
653 $aBrasil
653 $aInseto praga
653 $aPest insects
700 1 $aSOSA-GOMEZ, D.R.
700 1 $aROSADO NETO, G. H.
773 $tIn: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000.
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