Fate of buturon-14C in soil during seven seasons of exposure under outdoor conditions
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| Autores: | , , , , |
|---|---|
| Formato: | artículo original |
| Fecha de Publicación: | 1984 |
| Descripción: | Buturon (ring 14C) was applied to wheat and soil in two successive years (3 kg/ha each year) at outdoor conditions. Residual radioactive substances in the upper soil layer (0-10-cm depth) were measured 1.5, 2.5, 3.5, 6.0, and 6.5 years after the first treatment. The decline of total radiocarbon was a two-stage process. Mass balance studies were conducted 1.5, 2.5, and 6.5 years after the first treatment; total recoveries were 83, 47, and 27 %, respectively, of the applied radioactivity. Extractability of residues with cold chloroform was 20-30% of total residues. Whereas the chloroform-soluble conversion products identified after the first growing period mostly resulted from alterations within the side chain of buturon, after seven seasons only hydroxylated and/or methoxylated derivatives of 4-chloroaniline could be detected. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/87953 |
| Acceso en línea: | https://pubs.acs.org/doi/10.1021/jf00122a009?cookieSet=1 https://hdl.handle.net/10669/87953 |
| Palabra clave: | QUÍMICA SUELO CEREAL MÉTODO EXPERIMENTAL QUÍMICA AGRÍCOLA |