Data/hora: 07/06/2024 14:29:49

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 28/09/1993
Data da última atualização: | 28/09/1993
Autoria: | MELO, W. J.; OLIVEIRA, H.; BERETTA, M. J. G.; CHELLI, R. A.; LEITE, S. A. S.
Afiliação: | Secao Bioquimica Fitopatologica, Instituto Biologico, Sao Paulo, Brazil; Instituto Biologico, C.P. 7119, 01000 Sao Paulo, Brazil.
Título: | Zinc in soil and citrus trees showing declinio symptoms
Ano de publicação: | 1981
Fonte/Imprenta: | Riverside, California: International Organization of Citrus Virologists, 1981
Páginas: | p.283-288
Idioma: | Inglês
Notas: | Conference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings...
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.
Palavras-Chave: | Fulvic acid; Humic acid; Humic matter.
Thesaurus Nal: | blight; humin; soil organic matter.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (13312-1) - ADC - PL - -- - 634.3040601 - C748p - 1992000183 - DIS