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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
15/05/1995 |
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Data da última atualização: |
15/05/1995 |
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Autoria: |
BURIOL, G. A.; STRECK, N. A.; PETRY, C.; SCHNEIDER, F. M. |
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Afiliação: |
Univ. Fed. Santa Maria - CCR - 97119-900 Santa Maria, RS. |
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Título: |
Transmissividade a radiacao solar do polietileno de baixa densidade utilizado em estufas. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Ciencia Rural, Santa Maria, v.25, n.1, p.1-4, 1995. |
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ISSN: |
0103-8478 |
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Idioma: |
Português |
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Palavras-Chave: |
Plastic. |
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Thesaurus Nal: |
greenhouses; polyethylene; solar radiation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00575naa a2200205 a 4500
001 1753039
005 1995-05-15
008 1995 bl uuuu u00u1 u #d
022 $a0103-8478
100 1 $aBURIOL, G. A.
245 $aTransmissividade a radiacao solar do polietileno de baixa densidade utilizado em estufas.
260 $c1995
650 $agreenhouses
650 $apolyethylene
650 $asolar radiation
653 $aPlastic
700 1 $aSTRECK, N. A.
700 1 $aPETRY, C.
700 1 $aSCHNEIDER, F. M.
773 $tCiencia Rural, Santa Maria$gv.25, n.1, p.1-4, 1995.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/01/2009 |
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Data da última atualização: |
06/04/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
SONG, G.; NOVOTNY, E. H.; HAYES, M. H. B.; AZEVEDO, E. R. de; BONAGAMBA, T. J. |
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Afiliação: |
GUIXUE SONG, UNIVERSITY OF LIMERICK; ETELVINO HENRIQUE NOVOTNY, CNPS; MICHAEL H. B. HAYES, UNIVERSITY OF LIMERICK; EDUARDO RIBEIRO DE AZEVEDO, USP; TITO J. BONAGAMBA, USP. |
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Título: |
Char and humin fractions in Amazonian dark earths. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 14., 2008, Saint Petersburg. From molecular understanding to innovative applications of humic substances: proceedings... Moscow: Lomonosov Moscow State University, 2008. v. 1, p. 311-314. |
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Idioma: |
Inglês |
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Conteúdo: |
The high and specific SOM contents of the Amazonian Dark Earths (ADE, Terra Preta de Índios), and their high contents of P and Ca provide high natural fertility to the soils. Char or black carbon (B C) plays a major role for the SOM stability in ADE soils (1) and it also provides a significant potential for carbon sequestration and sustainable ecosystems (2). There are several studies of the humic acids (HAs) of ADE soils (e.g., 3 and 4). However, because of the difficulties in isolation, there is less awareness of humin, the most abundant SOM component, and of the interaction mechanisms of recalcitrant BC with SOM (especially humin) and clays. In this study, humic materials were extracted using the IHSS procedure and by exhaustive sequential extraction procedures. Isotopic 13C analyses, and solid-state 13C NMR spectroscopy were used for characterizations. |
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Palavras-Chave: |
Amazonian dark earth; black carbon; char; NMR. |
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Thesaurus NAL: |
dimethyl sulfoxide; humin; urea. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/334788/1/Char-and-humin-fractions-in-Amazonian-dark-earths-2008.pdf
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Marc: |
LEADER 01721nam a2200241 a 4500
001 1334788
005 2022-04-06
008 2008 bl uuuu u00u1 u #d
100 1 $aSONG, G.
245 $aChar and humin fractions in Amazonian dark earths.$h[electronic resource]
260 $aIn: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 14., 2008, Saint Petersburg. From molecular understanding to innovative applications of humic substances: proceedings... Moscow: Lomonosov Moscow State University, 2008. v. 1, p. 311-314.$c2008
520 $aThe high and specific SOM contents of the Amazonian Dark Earths (ADE, Terra Preta de Índios), and their high contents of P and Ca provide high natural fertility to the soils. Char or black carbon (B C) plays a major role for the SOM stability in ADE soils (1) and it also provides a significant potential for carbon sequestration and sustainable ecosystems (2). There are several studies of the humic acids (HAs) of ADE soils (e.g., 3 and 4). However, because of the difficulties in isolation, there is less awareness of humin, the most abundant SOM component, and of the interaction mechanisms of recalcitrant BC with SOM (especially humin) and clays. In this study, humic materials were extracted using the IHSS procedure and by exhaustive sequential extraction procedures. Isotopic 13C analyses, and solid-state 13C NMR spectroscopy were used for characterizations.
650 $adimethyl sulfoxide
650 $ahumin
650 $aurea
653 $aAmazonian dark earth
653 $ablack carbon
653 $achar
653 $aNMR
700 1 $aNOVOTNY, E. H.
700 1 $aHAYES, M. H. B.
700 1 $aAZEVEDO, E. R. de
700 1 $aBONAGAMBA, T. J.
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