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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
24/03/2000 |
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Data da última atualização: |
24/03/2000 |
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Autoria: |
RAGA, A.; GRAVENA, S.; BORTOLI, S. A. de; ARAI, J.; WASSANO, G. N. |
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Título: |
Amostragem de insetos e atividade de artropodos predadores na cultura do tomateiro de crescimento determinado. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Anais da Sociedade Entomologica do Brasil, Vicosa, v.19, n.2, p.253-271, 1990. |
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Idioma: |
Português |
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Palavras-Chave: |
Artropode; Crescimento determinado; Determinated growth; Pest insects. |
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Thesagro: |
Amostragem; Controle Biológico; Inseto; Lycopersicon Esculentum; Praga; Tomate. |
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Thesaurus Nal: |
arthropods; biological control; sampling; tomatoes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00922naa a2200325 a 4500
001 1766832
005 2000-03-24
008 1990 bl uuuu u00u1 u #d
100 1 $aRAGA, A.
245 $aAmostragem de insetos e atividade de artropodos predadores na cultura do tomateiro de crescimento determinado.
260 $c1990
650 $aarthropods
650 $abiological control
650 $asampling
650 $atomatoes
650 $aAmostragem
650 $aControle Biológico
650 $aInseto
650 $aLycopersicon Esculentum
650 $aPraga
650 $aTomate
653 $aArtropode
653 $aCrescimento determinado
653 $aDeterminated growth
653 $aPest insects
700 1 $aGRAVENA, S.
700 1 $aBORTOLI, S. A. de
700 1 $aARAI, J.
700 1 $aWASSANO, G. N.
773 $tAnais da Sociedade Entomologica do Brasil, Vicosa$gv.19, n.2, p.253-271, 1990.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
01/12/2008 |
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Data da última atualização: |
14/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
FONTANA, A.; PEREIRA, M. G.; ANJOS, L. H. C. dos; BENITES, V. de M. |
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Afiliação: |
Ademir Fontana, Universidade Federal Rural do Rio de Janeiro (UFRRJ); Marcos Gervasio Pereira, Universidade Federal Rural do Rio de Janeiro (UFRRJ); Lúcia Helena Cunha dos Anjos, Universidade Federal Rural do Rio de Janeiro (UFRRJ); VINICIUS DE MELO BENITES, CNPS. |
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Título: |
Distribution of organic carbon in the humic fractions of diagnostic horizons from brazilian soils. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 39, n. 7/8, p. 951-971, Apr. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
This study was developed on 52 soil profiles, 61 surface diagnostic horizons, and 26 subsurface diagnostic horizons classified according to the Soil Taxonomy and Brazilian Soil Classification System (SiBCS) as Mollisols (Chernossolos), Spodosols (Espodossolos), Entisols (Gleissolos), Oxisols (Latossolos), and Histosols (Organossolos). The objective was to quantify the carbon (C) in organic matter fractions and to correlate it with soil chemical attributes. Soil organic matter was fractionated into fulvic acids (C-FAF), humic acids (C-HAF), and humin (C-HUM), and the ratios C-HAF/C-FAF and AE (alkaline extract)/C-HUM were calculated. Humin was the predominant fraction in Mollisols and Oxisols, which showed values of AE/C-HUM and C-HAF/C-FAF lower than 1.0. The humin fraction was also predominant in surface horizons of Spodosols and Entisols, whereas a higher content of C-FAF and C-FAH was observed in the subsurface horizons, with values higher than 1.5 for the AE/C-HUM ratio. C-HAF was predominant in the Histosols, and C-HAF/C-FAF ratio values were higher than 2.0. The highest correlation values with soil attributes were observed for C-HAF, C-HUM, and total organic C with pH, sum of bases, and cation exchange capacity. The differences in humic substances distribution was a useful parameter to characterize soil orders in the Brazilian soil classification system and to understand pedogenic processes. |
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Palavras-Chave: |
Chemical fractioning; pedogenesis. |
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Thesaurus NAL: |
humic substances; soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02086naa a2200205 a 4500
001 1339721
005 2020-08-14
008 2008 bl uuuu u00u1 u #d
100 1 $aFONTANA, A.
245 $aDistribution of organic carbon in the humic fractions of diagnostic horizons from brazilian soils.$h[electronic resource]
260 $c2008
520 $aThis study was developed on 52 soil profiles, 61 surface diagnostic horizons, and 26 subsurface diagnostic horizons classified according to the Soil Taxonomy and Brazilian Soil Classification System (SiBCS) as Mollisols (Chernossolos), Spodosols (Espodossolos), Entisols (Gleissolos), Oxisols (Latossolos), and Histosols (Organossolos). The objective was to quantify the carbon (C) in organic matter fractions and to correlate it with soil chemical attributes. Soil organic matter was fractionated into fulvic acids (C-FAF), humic acids (C-HAF), and humin (C-HUM), and the ratios C-HAF/C-FAF and AE (alkaline extract)/C-HUM were calculated. Humin was the predominant fraction in Mollisols and Oxisols, which showed values of AE/C-HUM and C-HAF/C-FAF lower than 1.0. The humin fraction was also predominant in surface horizons of Spodosols and Entisols, whereas a higher content of C-FAF and C-FAH was observed in the subsurface horizons, with values higher than 1.5 for the AE/C-HUM ratio. C-HAF was predominant in the Histosols, and C-HAF/C-FAF ratio values were higher than 2.0. The highest correlation values with soil attributes were observed for C-HAF, C-HUM, and total organic C with pH, sum of bases, and cation exchange capacity. The differences in humic substances distribution was a useful parameter to characterize soil orders in the Brazilian soil classification system and to understand pedogenic processes.
650 $ahumic substances
650 $asoil organic matter
653 $aChemical fractioning
653 $apedogenesis
700 1 $aPEREIRA, M. G.
700 1 $aANJOS, L. H. C. dos
700 1 $aBENITES, V. de M.
773 $tCommunications in Soil Science and Plant Analysis$gv. 39, n. 7/8, p. 951-971, Apr. 2008.
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