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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
11/01/2011 |
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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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Autoria: |
BYRNE, C. M. P.; HAYES, M. H. B.; KUMAR, R.; NOVOTNY, E. H.; LANIGAN, G.; RICHARDS, K. G.; FAY, D.; SIMPSON, A. J. |
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Afiliação: |
University of Limerick (UL), Ireland; University of Limerick (UL), Ireland; University of Toronto; ETELVINO HENRIQUE NOVOTNY, CNPS; Teagasc Environmental Research Centre; Teagasc Environmental Research Centre; Teagasc Environmental Research Centre; University of Toronto. |
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Título: |
Compositional changes in the hydrophobic acids fraction of drainage water from different land management practices. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Water Research, v. 44, n. 15, p. 4379-4390, Aug. 2010. |
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DOI: |
https://doi.org/10.1016/j.watres.2010.05.055 |
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Idioma: |
Inglês |
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Conteúdo: |
Dissolved organic matter (DOM) can play a key role in many environmental processes, including carbon cycling, nutrient transport and the fates of contaminants and of agrochemicals. Hydrophobic acids (Ho), the major components of the DOM, were recovered from the drainage waters from well-drained (WDS) and poorly-drained (PDS) Irish grassland soils in lysimeters, amended with N fertiliser (F) and with bovine urine (U) and were studied using 1D and 2D solution-state Nuclear Magnetic Resonance (NMR) spectroscopy. The Diffusion Edited (DE) 1H NMR spectra indicated that the Ho consisted largely of larger molecules, or of molecules that formed rigid aggregates, and the 1D and the 2D (Heteronuclear Multiple Quantum Coherence - HMQC, the Total Correlation Spectroscopy - TOCSY, and the Nuclear Overhauser Effect - NOESY) spectra indicated that the samples were composed of lignin residues, carbohydrates, protein/peptides, and aliphatic components derived from plant waxes/cuticular materials and from microbial lipids. The F amendments increased the concentrations of Ho in the waters by 1.5 and 2.5 times those in the controls in the cases of WDS and PDS, respectively. The lignin-derived components were increased by 50% and 300% in the cases of the Ho from the WDS and PDS, respectively. Applications of F + U decreased the losses of Ho, (compared to the F amendments alone) and very significantly decreased those of the lignin-derived materials, indicating that enhanced microbial activity from U gave rise to enhanced metabolism of the Ho components, and especially of lignin. In contrast the less biodegradable aliphatic components containing cuticular materials increased as the result of applications of F + U. This study helps our understanding of how management practices influence the movement of C between terrestrial and aquatic environments. MenosDissolved organic matter (DOM) can play a key role in many environmental processes, including carbon cycling, nutrient transport and the fates of contaminants and of agrochemicals. Hydrophobic acids (Ho), the major components of the DOM, were recovered from the drainage waters from well-drained (WDS) and poorly-drained (PDS) Irish grassland soils in lysimeters, amended with N fertiliser (F) and with bovine urine (U) and were studied using 1D and 2D solution-state Nuclear Magnetic Resonance (NMR) spectroscopy. The Diffusion Edited (DE) 1H NMR spectra indicated that the Ho consisted largely of larger molecules, or of molecules that formed rigid aggregates, and the 1D and the 2D (Heteronuclear Multiple Quantum Coherence - HMQC, the Total Correlation Spectroscopy - TOCSY, and the Nuclear Overhauser Effect - NOESY) spectra indicated that the samples were composed of lignin residues, carbohydrates, protein/peptides, and aliphatic components derived from plant waxes/cuticular materials and from microbial lipids. The F amendments increased the concentrations of Ho in the waters by 1.5 and 2.5 times those in the controls in the cases of WDS and PDS, respectively. The lignin-derived components were increased by 50% and 300% in the cases of the Ho from the WDS and PDS, respectively. Applications of F + U decreased the losses of Ho, (compared to the F amendments alone) and very significantly decreased those of the lignin-derived materials, indicating that enhanced microbial activity fro... Mostrar Tudo |
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Palavras-Chave: |
Grassland; Hydrophobic acids. |
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Thesaurus Nal: |
dissolved organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02646naa a2200253 a 4500
001 1872601
005 2021-11-03
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.watres.2010.05.055$2DOI
100 1 $aBYRNE, C. M. P.
245 $aCompositional changes in the hydrophobic acids fraction of drainage water from different land management practices.$h[electronic resource]
260 $c2010
520 $aDissolved organic matter (DOM) can play a key role in many environmental processes, including carbon cycling, nutrient transport and the fates of contaminants and of agrochemicals. Hydrophobic acids (Ho), the major components of the DOM, were recovered from the drainage waters from well-drained (WDS) and poorly-drained (PDS) Irish grassland soils in lysimeters, amended with N fertiliser (F) and with bovine urine (U) and were studied using 1D and 2D solution-state Nuclear Magnetic Resonance (NMR) spectroscopy. The Diffusion Edited (DE) 1H NMR spectra indicated that the Ho consisted largely of larger molecules, or of molecules that formed rigid aggregates, and the 1D and the 2D (Heteronuclear Multiple Quantum Coherence - HMQC, the Total Correlation Spectroscopy - TOCSY, and the Nuclear Overhauser Effect - NOESY) spectra indicated that the samples were composed of lignin residues, carbohydrates, protein/peptides, and aliphatic components derived from plant waxes/cuticular materials and from microbial lipids. The F amendments increased the concentrations of Ho in the waters by 1.5 and 2.5 times those in the controls in the cases of WDS and PDS, respectively. The lignin-derived components were increased by 50% and 300% in the cases of the Ho from the WDS and PDS, respectively. Applications of F + U decreased the losses of Ho, (compared to the F amendments alone) and very significantly decreased those of the lignin-derived materials, indicating that enhanced microbial activity from U gave rise to enhanced metabolism of the Ho components, and especially of lignin. In contrast the less biodegradable aliphatic components containing cuticular materials increased as the result of applications of F + U. This study helps our understanding of how management practices influence the movement of C between terrestrial and aquatic environments.
650 $adissolved organic matter
653 $aGrassland
653 $aHydrophobic acids
700 1 $aHAYES, M. H. B.
700 1 $aKUMAR, R.
700 1 $aNOVOTNY, E. H.
700 1 $aLANIGAN, G.
700 1 $aRICHARDS, K. G.
700 1 $aFAY, D.
700 1 $aSIMPSON, A. J.
773 $tWater Research$gv. 44, n. 15, p. 4379-4390, Aug. 2010.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
25/08/2004 |
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Data da última atualização: |
28/08/2018 |
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Autoria: |
WEBER, O. B.; SOUZA, C. C. M. de; GONDIN, D. M. F.; OLIVEIRA, F. N. S.; CRISOSTOMO, L. A.; CAPRONI, A. L.; SAGGIN JÚNIOR, O. |
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Afiliação: |
OLMAR BALLER WEBER, CNPAT; Carmem Cristina Maréco de Souza, Universidade Federal do Ceará - UFC; Darcy Mayra Furtado Gondin, Universidade Estadual do Ceará -UEC; Francisco Nelseudes Sombra Oliveira, CNPAT; LINDBERGUE ARAUJO CRISOSTOMO, CNPAT; Ana Lucy Caproni, CNPAB; Orivaldo Saggin Júnior, CNPAB. |
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Título: |
Inoculação de fungos micorrízicos arbusculares e adubação fosfatada em mudas de cajueiro-anão-precoce. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 5, p. 477-483, maio 2004. |
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Idioma: |
Português |
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Notas: |
Título m inglês: Inoculation of arbuscular micorrhizal fungi and phosphate fertilization on dwarf cashew seedlings. |
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Conteúdo: |
O objetivo deste trabalho foi avaliar os efeitos da inoculação de fungos micorrízicos arbusculares (FMA) nativos e exóticos e da adubação fosfatada no crescimento e no acúmulo de nutrientes em mudas do cajueiro-anão-precoce CCP 76. O experimento, realizado em casa de vegetação, constou de um arranjo fatorial (4x2), sendo três misturas (duas comunidades de FMA nativos e o produto comercial Mycogold) mais o controle sem fungo e duas doses de fósforo (0 e 87 mg/L). Os fungos nativos eram formados pelas espécies Glomus etunicatum, G. glomerulatum, Scutellospora sp. e Acaulospora foveata, da primeira comunidade, e G. etunicatum, Entrophospora sp. e Scutellospora sp., da segunda comunidade. Observou-se resposta das mudas do cajueiro ao fósforo aplicado no solo. A associação simbiótica com os fungos da primeira comunidade e do produto comercial foi vantajosa no desenvolvimento das mudas do cajueiro, aos quatro meses da semeadura. |
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Palavras-Chave: |
cashew propagation; propagação do caju. |
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Thesagro: |
Absorção de Nutrientes; Anacardium Occidentale; Fósforo. |
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Thesaurus NAL: |
Glomus; nutrient uptake; phosphorus. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/27614/1/39n5a10.pdf
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Marc: |
LEADER 01965naa a2200301 a 4500
001 1111184
005 2018-08-28
008 2004 bl uuuu u00u1 u #d
100 1 $aWEBER, O. B.
245 $aInoculação de fungos micorrízicos arbusculares e adubação fosfatada em mudas de cajueiro-anão-precoce.
260 $c2004
500 $aTítulo m inglês: Inoculation of arbuscular micorrhizal fungi and phosphate fertilization on dwarf cashew seedlings.
520 $aO objetivo deste trabalho foi avaliar os efeitos da inoculação de fungos micorrízicos arbusculares (FMA) nativos e exóticos e da adubação fosfatada no crescimento e no acúmulo de nutrientes em mudas do cajueiro-anão-precoce CCP 76. O experimento, realizado em casa de vegetação, constou de um arranjo fatorial (4x2), sendo três misturas (duas comunidades de FMA nativos e o produto comercial Mycogold) mais o controle sem fungo e duas doses de fósforo (0 e 87 mg/L). Os fungos nativos eram formados pelas espécies Glomus etunicatum, G. glomerulatum, Scutellospora sp. e Acaulospora foveata, da primeira comunidade, e G. etunicatum, Entrophospora sp. e Scutellospora sp., da segunda comunidade. Observou-se resposta das mudas do cajueiro ao fósforo aplicado no solo. A associação simbiótica com os fungos da primeira comunidade e do produto comercial foi vantajosa no desenvolvimento das mudas do cajueiro, aos quatro meses da semeadura.
650 $aGlomus
650 $anutrient uptake
650 $aphosphorus
650 $aAbsorção de Nutrientes
650 $aAnacardium Occidentale
650 $aFósforo
653 $acashew propagation
653 $apropagação do caju
700 1 $aSOUZA, C. C. M. de
700 1 $aGONDIN, D. M. F.
700 1 $aOLIVEIRA, F. N. S.
700 1 $aCRISOSTOMO, L. A.
700 1 $aCAPRONI, A. L.
700 1 $aSAGGIN JÚNIOR, O.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 39, n. 5, p. 477-483, maio 2004.
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