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| Titel: |
Soil erosion and pesticide transport from an irrigated field |
| Auteur: |
Singh, G. Letey, J. Hanson, P. Osterli, P. Spencer, W. F. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 31 (1996) nr. 1 pagina's 25-41 |
| Jaar: |
1996-01 |
| Inhoud: |
A field experiment was conducted to study the effect of an anionic polyacrylamide injection in irrigation water on kelthane runoff and sediment transport from a lima bean soil. Periodic runoff water samples from the polymer treated and untreated control furrows were collected from three irrigations and were analyzed for suspended sediments, total sediments and kelthane residues by standard techniques. In addition, water in- and outflow rates were measured periodically to calculate the effect of polymer treatment on water infiltration. The total and suspended sediments in the polymer treated furrows were significantly lower than the untreated ones. Kelthane concentrations in the runoff water in individual furrows were dependent on suspended solid load. During the two post-treatment irrigations (8 h each), only 0.16 and 0.30% of the applied kelthane was observed in the runoff from the treated and untreated plots, respectively. The present findings show promising implications of polymer application in reducing pesticide contamination through runoff from agricultural fields. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 8 gevonden artikelen
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