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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
05/06/2002 |
Data da última atualização: |
05/06/2002 |
Autoria: |
MOURA, R. M. de; PEDROSA, E. M. R.; GUIMARÃES, L. M. P. |
Título: |
Novos dados sobre a etiologia da easca preta do inhame no Nordeste, Brasil. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Nematologia Brasileira, Brasília, DF, v. 25, n. 2, p. 235-237, dez. 2001. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Cara; Dioscorea cayenneusis; Diseases; Nematode; Nordeste; Northeast; Yam. |
Thesagro: |
Doença; Etiologia; Inhame; Nematóide; Pratylenchus Coffeae; Scutellonema Bradys. |
Thesaurus Nal: |
Brazil; etiology. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00853naa a2200325 a 4500 001 1771642 005 2002-06-05 008 2001 bl uuuu u00u1 u #d 100 1 $aMOURA, R. M. de 245 $aNovos dados sobre a etiologia da easca preta do inhame no Nordeste, Brasil. 260 $c2001 650 $aBrazil 650 $aetiology 650 $aDoença 650 $aEtiologia 650 $aInhame 650 $aNematóide 650 $aPratylenchus Coffeae 650 $aScutellonema Bradys 653 $aBrasil 653 $aCara 653 $aDioscorea cayenneusis 653 $aDiseases 653 $aNematode 653 $aNordeste 653 $aNortheast 653 $aYam 700 1 $aPEDROSA, E. M. R. 700 1 $aGUIMARÃES, L. M. P. 773 $tNematologia Brasileira, Brasília, DF$gv. 25, n. 2, p. 235-237, dez. 2001.
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Embrapa Hortaliças (CNPH) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
13/02/2023 |
Data da última atualização: |
13/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
NOVOTNY, E. H.; AZEVEDO, E. R. de; GODOY, G. de; CONSALTER, D. M.; COOPER, M. |
Afiliação: |
ETELVINO HENRIQUE NOVOTNY, CNPS; EDUARDO RIBEIRO DE AZEVEDO, UNIVERSIDADE DE SÃO PAULO; GUSTAVO DE GODOY, UNIVERSIDADE DE SÃO PAULO; DANIEL MARTELOZO CONSALTER, FINE INSTRUMENT TECHNOLOGY; MIGUEL COOPER, UNIVERSIDADE DE SÃO PAULO. |
Título: |
Determination of soil pore size distribution and water retention curve by internal magnetic field modulation at low field 1H NMR. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Geoderma, v. 431, 116363, Mar. 2023. |
DOI: |
https://doi.org/10.1016/j.geoderma.2023.116363 |
Idioma: |
Inglês |
Conteúdo: |
The determination of the soil pore size distribution, water retention curve, and derived parameters that control important processes in soils, such as water supply for plants; infiltration; water and solute movement in soils; erosion; plant nutrients and contaminants transport, etc, are challenging and the available methods are expensive, time-consuming and prone to bias and errors. The use of 1H Nuclear Magnetic Resonance (NMR) relaxometry to characterise the soil porosity and hydraulic properties through spin-lattice and spin-spin relaxometry results in an ill-posed problem with two correlated unknown quantities: the pore length scales, and surface relaxivity. To overcome this limitation of NMR relaxometry, we propose the use of a method that directly accesses the NMR diffusion modes governed only by the pore size, and therefore, independent of the unknown surface relaxivity. The manuscript describes an unprecedent application in Soil Science of the Decay due to Diffusion in Internal Field (DDIF) method to successfully determine the pore size distribution of undisturbed soil samples, as well as to estimate the water retention curves from the pore size distribution. |
Palavras-Chave: |
Curva de retenção de água; DDIF; Diffusion eigenmode detection; Pore length scales. |
Thesagro: |
Porosidade; Retenção de Água no Solo. |
Thesaurus NAL: |
Soil water retention. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151694/1/Determination-of-soil-pore-size-distribution-2023.pdf
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Marc: |
LEADER 02044naa a2200265 a 4500 001 2151694 005 2023-03-13 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.geoderma.2023.116363$2DOI 100 1 $aNOVOTNY, E. H. 245 $aDetermination of soil pore size distribution and water retention curve by internal magnetic field modulation at low field 1H NMR.$h[electronic resource] 260 $c2023 520 $aThe determination of the soil pore size distribution, water retention curve, and derived parameters that control important processes in soils, such as water supply for plants; infiltration; water and solute movement in soils; erosion; plant nutrients and contaminants transport, etc, are challenging and the available methods are expensive, time-consuming and prone to bias and errors. The use of 1H Nuclear Magnetic Resonance (NMR) relaxometry to characterise the soil porosity and hydraulic properties through spin-lattice and spin-spin relaxometry results in an ill-posed problem with two correlated unknown quantities: the pore length scales, and surface relaxivity. To overcome this limitation of NMR relaxometry, we propose the use of a method that directly accesses the NMR diffusion modes governed only by the pore size, and therefore, independent of the unknown surface relaxivity. The manuscript describes an unprecedent application in Soil Science of the Decay due to Diffusion in Internal Field (DDIF) method to successfully determine the pore size distribution of undisturbed soil samples, as well as to estimate the water retention curves from the pore size distribution. 650 $aSoil water retention 650 $aPorosidade 650 $aRetenção de Água no Solo 653 $aCurva de retenção de água 653 $aDDIF 653 $aDiffusion eigenmode detection 653 $aPore length scales 700 1 $aAZEVEDO, E. R. de 700 1 $aGODOY, G. de 700 1 $aCONSALTER, D. M. 700 1 $aCOOPER, M. 773 $tGeoderma$gv. 431, 116363, Mar. 2023.
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1. | | 6050009, IRISH VETERINARY JOURNAL, Irish Veterinary Association, Dublin-Irlanda Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Caprinos e Ovinos; Embrapa Clima Temperado; Embrapa Gado de Corte; Embrapa Gado de Leite; Embrapa Pecuária Sudeste; Embrapa Semiárido; Embrapa Suínos e Aves. | |
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