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| 13. |  | MORALES, J.; VASQUÉZ, C.; PÉREZ, N. L.; VALERA, N.; RÍOS, Y.; ARRIECHE, N.; QUERINO, R. B. Especies de Trichogramma (Hymenoptera: Trichogrammatidae) parasitoides de huevos de lepidópteros, Estado Lara, Venezuela. Neotropical Entomology, v. 36, p. 489-494, 2007.| Biblioteca(s): Embrapa Roraima. |
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| 15. | | MORALES, J. F.; JARAMILLO, L.; OROPEZA, Z.; TRIGO, F. J.; TORTORA, J.; ESPINO, G. Evaluacion experimental en campo de un inmunogeno de Pasteurella haemolytica en corderos. In: CONGRESO PANAMERICANO DE CIENCIAS VETERINARIAS, 13., 1992, Santiago. Resumenes... Santiago: Asociacion Panamericana de Ciencias Veterinarias, 1992. Resumene O-340.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 18. | | MORALES, J.; VÁSQUEZ, C.; PEREZ, N. L.; VALERA, N.; ARRIECHE, N.; QUERINO, R. B. Nuevos registros y distribución de especies de Trichogramma (Hymenoptera: Trichogrammatidae) en el estado Lara, Venezuela. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., Brasília, DF, 2007.| Biblioteca(s): Embrapa Roraima. |
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| 19. | | MORALES, J.; VASQUEZ, C.; VALERA, N.; ARRIECHE, N.; ARCAYA, E.; QUERINO, R. B. Nuevos registros y distribucion de especies de Trichogramma (Hymenoptera: Trichogrammatidae) en el Estado Lara, Venezuela. Bioagro, Barquisimeto, v. 22, n. 2, p. 159-162, 2010. Autoria: QUERINO, R. B. [i.e. SILVA, R. B. Q. da], Ranyse Barbosa Querino da Silva.| Biblioteca(s): Embrapa Meio-Norte. |
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| 20. | | MORALES, J.; VÁSQUEZ, C.; PEREZ, NIEVES L.; VALERA, N.; ARRIECHE, N.; QUERINO, R. B. Trichogramma exiguum pinto y platner y trichogramma pretiosum riley (hymenoptera: trichogrammatidae), parasitoides de huevos de lepidópteros en el Estado Lara, Venezuela. In: CONGRESSO VENEZOLANO DE ENTOMOLOGÍA, 20., San Cristobal, Venezuela, 2007. Memórias...| Biblioteca(s): Embrapa Roraima. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
22/12/1999 |
|
Data da última atualização: |
02/03/2010 |
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Autoria: |
CRUVINEL, P. E.; NIELSEN, D. R.; CRESTANA, S.; FLOCCHINI, R. G.; MORALES, J. R.; MIRANDA, J.; KUSKO, B. |
|
Afiliação: |
EMBRAPA-CNPDIA; University of California; Universidad de Chile; Universidad Nacional de Mexico. |
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Título: |
Studying the influence of the aggregate sizes on the trace elements of an ione oxisol with PIXE. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 23., jul. 1991, Porto Alegre, RS. Programa e resumos... Porto Alegre: Sociedade Brasileira de Ciencia do Solo, 1991. |
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Páginas: |
p.62. |
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Idioma: |
Inglês |
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Notas: |
Ref.018. |
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Conteúdo: |
The retention of certain trace elements through a saturated aggregated oxisol was studied under different aggregate sizes using the proton induced X-ray emission (PIXE) technique. This analytical technique is based on the ionization of the soil sample atoms by the incidence of a proton beam, and the subsequent emission of X-rays characteristic of the elements present in the sample. The number of X-rays photons of a given element provides information on the amount of this element, up to one part in 10E9. The results obtained show that an increase in aggregate size from < 0,5mm to 1,0 -4,7mm affected significatively the relative amounts of Cl,K, and Ca. The presence of Cl and Ca was greatest in the small aggregate fractions. The presence of K was greatest in the large aggregate fractions. These results, in particular for Cl and Ca, are indeed applicable and related to those obtained by Nkedi-Kizza. His miscible displacement techniques revealed that the transport and retention of Cl and Ca through a saturated aggregate oxisol were influenced by the size of the aggregates within the particular soil column studied. |
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Palavras-Chave: |
Aggregate; Influence; Ione; PIXE; Size. |
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Thesagro: |
Oxisol. |
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Thesaurus NAL: |
trace elements. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02006naa a2200301 a 4500
001 1026644
005 2010-03-02
008 1991 bl --- 0-- u #d
100 1 $aCRUVINEL, P. E.
245 $aStudying the influence of the aggregate sizes on the trace elements of an ione oxisol with PIXE.
260 $c1991
300 $ap.62.
500 $aRef.018.
520 $aThe retention of certain trace elements through a saturated aggregated oxisol was studied under different aggregate sizes using the proton induced X-ray emission (PIXE) technique. This analytical technique is based on the ionization of the soil sample atoms by the incidence of a proton beam, and the subsequent emission of X-rays characteristic of the elements present in the sample. The number of X-rays photons of a given element provides information on the amount of this element, up to one part in 10E9. The results obtained show that an increase in aggregate size from < 0,5mm to 1,0 -4,7mm affected significatively the relative amounts of Cl,K, and Ca. The presence of Cl and Ca was greatest in the small aggregate fractions. The presence of K was greatest in the large aggregate fractions. These results, in particular for Cl and Ca, are indeed applicable and related to those obtained by Nkedi-Kizza. His miscible displacement techniques revealed that the transport and retention of Cl and Ca through a saturated aggregate oxisol were influenced by the size of the aggregates within the particular soil column studied.
650 $atrace elements
650 $aOxisol
653 $aAggregate
653 $aInfluence
653 $aIone
653 $aPIXE
653 $aSize
700 1 $aNIELSEN, D. R.
700 1 $aCRESTANA, S.
700 1 $aFLOCCHINI, R. G.
700 1 $aMORALES, J. R.
700 1 $aMIRANDA, J.
700 1 $aKUSKO, B.
773 $tIn: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 23., jul. 1991, Porto Alegre, RS. Programa e resumos... Porto Alegre: Sociedade Brasileira de Ciencia do Solo, 1991.
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