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| Titel: |
The effect of formulation and moisture level on the persistence of carbofuran in a soil containing biological systems adapted to its degradation |
| Auteur: |
Chapman, Ralph A. Harris, C. R. Harris, Carol |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 21 (1986) nr. 1 pagina's 57-66 |
| Jaar: |
1986 |
| Inhoud: |
In a laboratory experiment in which soils were mixed frequently in an effort to maintain homogeniety, technical carbofuran was rapidly degraded to <5% of the initial application within 24 hr when applied to previously-treated sandy loam maintained at 11.3 and 27.0% moisture. In previously-untreated soil, >95% of the initial application remained after 24 hr but significant and variable loss was observed after 3 days (87-10% remaining). In contrast, there was no significant difference in the rate of disappearance of a granular formulation of carbofuran (Furadan® 15G) from previously-treated and previously-untreated soils when maintained at 11.3% moisture: Disappearance was relatively slow requiring 3 wk for ca. 90% decrease. When maintained at 27.0% moisture, the rate of disappearance of the granular formulation from the previously-treated soil was significantly different from that in the previously-untreated soil (eg. 2 vs 80% remaining at 7 days). The results demonstrate that an adapted soil microbial population is not the only factor to be considered in evaluating or estimating the persistence of field applied carbofuran. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 6 gevonden artikelen
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