Data/hora: 16/06/2024 02:35:02

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 22/12/1999
Data da última atualização: | 22/12/1999
Autoria: | CRUVINEL, P. E.; CRESTANA, S.; ARMELIN, M. J. A.; ARTAXO, P.
Afiliação: | EMBRAPA-CNPDIA; USP-IPEN; USP-IF.
Título: | Studying zinc in an agricultural field using particle induced X-ray emission (PIXE) and instrumental neutron activation analysis (INAA).
Ano de publicação: | 1996
Fonte/Imprenta: | In: INTERNATIONAL SYMPOSIUM ON PLANT-SOIL INTERACTIONS AT LOW pH, 4., Mar. 1996, Belo Horizonte, MG. Program and abstracts... Belo Horizonte: [s.n.], 1996. Ref.168.
Páginas: | Nao-paginado.
Idioma: | Inglês
Conteúdo: | The behavior of trace elements in the soil-plant system is complex and therefore has been usually studied separatelly. For instance, the nucleation of Zn hydroxide on clay surfaces may produce the strongly pH dependent retention of Zn in soils. Besides, the adsorption of Zn2+ can be reduced at lower pH by competing cations leading to an easy mobilization and leaching of Zn from light acid soils. Processes involved in Zn adsorption, as well as for many other elements, are not completely understood. This work demonstrates the suitability of PIXE technique to study Zn in soil. To demonstrate the capability of the method soil samples were collected from an agricultural field having 5000m2 and were analyzed using both PIXE and INAA techniques. Results showed that there is a good linear relationship for Zn concentration obtained using those techniques.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (5534-1) - UPC - SP - -- - PROCI-96.00044 -  - 1996.00044 - DIS