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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
11/11/2020 |
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Data da última atualização: |
11/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, A. C.; PORTELA, R.; UZEDA, M. C. |
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Afiliação: |
Souza, Ana Carolina, UFRJ; Rita Portela, UFRJ; MARIELLA CAMARDELLI UZEDA, CNPAB. |
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Título: |
Influência da matriz na concentração de nutrientes do solo de fragmentos florestais. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Cadernos de Agroecologia, v. 15, n. 2, 2020. |
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Idioma: |
Português |
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Notas: |
Anais do XI Congresso Brasileiro de Agroecologia, São Cristóvão, Sergipe. |
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Palavras-Chave: |
Deriva; Fragmentação; Nutrientes do solo. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217724/1/Influencia-da-matriz-na-concentracao-de-nutrientes.pdf
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Marc: |
LEADER 00599naa a2200181 a 4500
001 2126513
005 2020-11-11
008 2020 bl uuuu u00u1 u #d
100 1 $aSOUZA, A. C.
245 $aInfluência da matriz na concentração de nutrientes do solo de fragmentos florestais.$h[electronic resource]
260 $c2020
500 $aAnais do XI Congresso Brasileiro de Agroecologia, São Cristóvão, Sergipe.
653 $aDeriva
653 $aFragmentação
653 $aNutrientes do solo
700 1 $aPORTELA, R.
700 1 $aUZEDA, M. C.
773 $tCadernos de Agroecologia$gv. 15, n. 2, 2020.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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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: |
19/10/2012 |
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Data da última atualização: |
03/11/2021 |
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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: |
CANELLAS, L. P.; DOBBSS, L. B.; OLIVEIRA, A. L.; CHAGAS, J. G.; AGUIAR, N. O.; RUMJANEK, V. M.; NOVOTNY, E. H.; OLIVARES, F. L.; SPACCINI, R.; PICCOLO, A. |
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Afiliação: |
ETELVINO HENRIQUE NOVOTNY, CNPS. |
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Título: |
Chemical properties of humic matter as related to induction of plant lateral roots. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
European Journal of Soil Science, v. 63, n. 3, p. 315-324, Jun. 2012. |
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DOI: |
https://doi.org/10.1111/j.1365-2389.2012.01439.x |
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Idioma: |
Inglês |
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Conteúdo: |
A series of humic matter samples isolated from a soil sequence, different oxisols, size-fractionated from avermicompost humic acid and subjected to chemical modifications, were characterized by CPMAS13C-NMRspectroscopy. The relative signal areas in chemical shift regions of NMR spectra of the four sets of sampleswere analysed by principal component analysis (PCA). Hierarchical cluster analysis (HCA) was applied tobuild a classification model, which allowed the recognition of humic matter according to its origin. Therelationship between carbon species and biological activity of humic acids, as promoters of lateral rootemergence, was obtained by applying PLS multivariate analysis. This showed that lateral root emergencewas mostly related to NMR parameters such as the hydrophobicity index (HB/HI) and the 40 - 110 and160 - 200 ppm chemical shift regions (hydrophilic carbon HI), while the content of hydrophobic (HB) carbon inhumic samples was negatively correlated with induction of lateral root hair. Our results represent a step furtherin the structure-bioactivity relationship of natural humic substances and confirm their role as plant root growthpromoters. |
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Palavras-Chave: |
Humic matter; Humic substance; Vermicompost. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02005naa a2200277 a 4500
001 1937279
005 2021-11-03
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/j.1365-2389.2012.01439.x$2DOI
100 1 $aCANELLAS, L. P.
245 $aChemical properties of humic matter as related to induction of plant lateral roots.$h[electronic resource]
260 $c2012
520 $aA series of humic matter samples isolated from a soil sequence, different oxisols, size-fractionated from avermicompost humic acid and subjected to chemical modifications, were characterized by CPMAS13C-NMRspectroscopy. The relative signal areas in chemical shift regions of NMR spectra of the four sets of sampleswere analysed by principal component analysis (PCA). Hierarchical cluster analysis (HCA) was applied tobuild a classification model, which allowed the recognition of humic matter according to its origin. Therelationship between carbon species and biological activity of humic acids, as promoters of lateral rootemergence, was obtained by applying PLS multivariate analysis. This showed that lateral root emergencewas mostly related to NMR parameters such as the hydrophobicity index (HB/HI) and the 40 - 110 and160 - 200 ppm chemical shift regions (hydrophilic carbon HI), while the content of hydrophobic (HB) carbon inhumic samples was negatively correlated with induction of lateral root hair. Our results represent a step furtherin the structure-bioactivity relationship of natural humic substances and confirm their role as plant root growthpromoters.
653 $aHumic matter
653 $aHumic substance
653 $aVermicompost
700 1 $aDOBBSS, L. B.
700 1 $aOLIVEIRA, A. L.
700 1 $aCHAGAS, J. G.
700 1 $aAGUIAR, N. O.
700 1 $aRUMJANEK, V. M.
700 1 $aNOVOTNY, E. H.
700 1 $aOLIVARES, F. L.
700 1 $aSPACCINI, R.
700 1 $aPICCOLO, A.
773 $tEuropean Journal of Soil Science$gv. 63, n. 3, p. 315-324, Jun. 2012.
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