| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Trigo. |
|
Data corrente: |
10/01/2010 |
|
Data da última atualização: |
17/10/2011 |
|
Autoria: |
AMER, F.; BOULDIN, D. R.; BLACK, C. A.; DUKE, F. R. |
|
Título: |
Characterization of soil phosphorus by anion exchange resin adsorption and P32-equilibration. |
|
Ano de publicação: |
1955 |
|
Fonte/Imprenta: |
Plant and Soil, The Hague, v. 6, n. 4, p. 391-408, 1955. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Adsorption of phosphate by the anion-exchange resin Dowex-2 was investigated. The resin adsorbed small quantities of P from solution quantitatively. The rate of P-adsorption by resin agitated in solution was proportional to the P-concentration in solution, and was independent of the rate of diffusion of adsorbed P in the resin. When 1 g of soil was shaken continuously with 1 g of resin in 100 ml of water, the rate of P-adsorption by the resin was controlled by the rate of P-release from the soil. Quantities of P adsorbed from soil by resin after different lengths of time were less than those equilibrated with P32 during the same time intervals. The curves showing quantity of P adsorbed vs. time could be satisfactorily described by the hypothesis that there were three simultaneous reactions differing in rate, each reaction being first-order with respect to P. The same was true of the P32-equilibration data, except that the rate of the slowest reaction was apparently independent of time. In a group of 16 soils, the correlation between P adsorbed by the resin in 2 hours and P-availability to plants in the greenhouse, measured by the isotope-dilution method of Fried and Dean, was 0.95. The corresponding correlation between P extracted by the 0.25N HCl — 0.03N NH4F extractant of Bray and Kurtz was 0.91. |
|
Thesagro: |
Análise; Fósforo; Solo. |
|
Categoria do assunto: |
-- |
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Trigo (CNPT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 2 | |
| 1. |  | TEIXEIRA, M. A. S.; MACHADO, F. M. C.; SARMENTO, N. M. F. P.; OLIVEIRA JÚNIOR, C. A.; RIET-CORREA, G.; CERQUEIRA, V. D.; FRANÇA, T. do N.; BEZERRA JÚNIOR, P. S. Aspectos patológicos e imuno-histoquímicos da polisserosite em búfalos (Bubalus bubalis). Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 1, p. 59-64, janeiro 2018. Título em inglês: Histopathological and immunohistochemical study of the polyserositis in buffalo (Bubalus bubalis).| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| 2. | | MIRANDA, H. C.; RIET-CORREA, G.; OLIVEIRA JÚNIOR, C. A.; RIET-CORREA, B.; PEIXOTO, P. V.; COSTA, S. Z. R.; D'AVILA, M. S.; CID, G. C.; FRANÇA, T. N. Avaliação lectino-histoquímica de fígado e linfonodo mesentérico de búfalos mantidos em pastagens de Brachiaria spp. Pesquisa Veterinária Brasileira, Brasília, DF. V. 36, N. 9, p. 798-804, set. 2016.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| Registros recuperados : 2 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
