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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
28/09/1993 |
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Data da última atualização: |
28/09/1993 |
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Autoria: |
MELO, W. J.; OLIVEIRA, H.; BERETTA, M. J. G.; CHELLI, R. A.; LEITE, S. A. S. |
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Afiliação: |
Secao Bioquimica Fitopatologica, Instituto Biologico, Sao Paulo, Brazil; Instituto Biologico, C.P. 7119, 01000 Sao Paulo, Brazil. |
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Título: |
Zinc in soil and citrus trees showing declinio symptoms |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Riverside, California: International Organization of Citrus Virologists, 1981 |
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Páginas: |
p.283-288 |
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Idioma: |
Inglês |
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Notas: |
Conference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings... |
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Conteúdo: |
The content of different forms of zinc in soil samples and the zinc content of leaves and trunk wood were determined in a citrus orchard showing different degrees of declinio symptoms. The samples were taken five times at 4-month intervals. In general, the zinc leaf content was greater in declinio-affected trees which were at the last stage of the disease and the element accumulated in the trunk wood of declinio-affected trees. The greatest value for soil zinc was observed in the humin fraction. The soluble taken under plants showing declinio symptoms. t only one sampling time there was a significant difference between treatments for zinc in the humic matter. The content of zinc in the humin was similar in all treaments. In twelve of the possible correlations with the analyzed parameters the t test was significant. |
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Palavras-Chave: |
Fulvic acid; Humic acid; Humic matter. |
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Thesaurus Nal: |
blight; humin; soil organic matter. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01629naa a2200265 a 4500
001 1644257
005 1993-09-28
008 1981 bl uuuu u00u1 u #d
100 1 $aMELO, W. J.
245 $aZinc in soil and citrus trees showing declinio symptoms
260 $c1981
300 $ap.283-288
500 $aConference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings...
520 $aThe content of different forms of zinc in soil samples and the zinc content of leaves and trunk wood were determined in a citrus orchard showing different degrees of declinio symptoms. The samples were taken five times at 4-month intervals. In general, the zinc leaf content was greater in declinio-affected trees which were at the last stage of the disease and the element accumulated in the trunk wood of declinio-affected trees. The greatest value for soil zinc was observed in the humin fraction. The soluble taken under plants showing declinio symptoms. t only one sampling time there was a significant difference between treatments for zinc in the humic matter. The content of zinc in the humin was similar in all treaments. In twelve of the possible correlations with the analyzed parameters the t test was significant.
650 $ablight
650 $ahumin
650 $asoil organic matter
653 $aFulvic acid
653 $aHumic acid
653 $aHumic matter
700 1 $aOLIVEIRA, H.
700 1 $aBERETTA, M. J. G.
700 1 $aCHELLI, R. A.
700 1 $aLEITE, S. A. S.
773 $tRiverside, California: International Organization of Citrus Virologists, 1981
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Embrapa Mandioca e Fruticultura (CNPMF) |
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