REMOVAL AND DEGRADATION OF ATRAZINE AND METOLACHLOR BY VEGETATIVE FILTER STRIPS ON CLAY LOAM SOIL

Autor:	Wondi Mersie, Don Delorem, C. A. Seybold
Rok vydání:	2001
Předmět:	Soil test Filter strip Soil Science Ultisol Soil contamination chemistry.chemical_compound chemistry Agronomy Loam Environmental chemistry Environmental science Atrazine Surface runoff Agronomy and Crop Science Metolachlor
Zdroj:	Communications in Soil Science and Plant Analysis. 32:723-737
ISSN:	1532-2416 0010-3624
DOI:	10.1081/css-100103904
Popis:	The effectiveness of filter strips, with and without vegetation, in removing dissolved atrazine and metolachlor in runoff was investigated using aluminum tilted beds set at 1% slope on Cullen clay loam soil. Runon containing atrazine and metolachlor was applied on the up-slope end of the simulated filter strips. Water samples from surface runoff, lateral subsurface movement, and leachates as well as filter strip soil samples were collected and herbicide concentrations determined. The filter strips reduced the amount of dissolved atrazine and metolachlor in runoff by about 6% of the amount applied. The absence or presence of switchgrass did not affect the amount of herbicide filtered. About 56 to 82% of the runon volume leached through the 30-cm soil depth of the filter strips. In the leachate, about 72 to 88% of the amount of applied herbicide was filtered or adsorbed to the soil. The presence of switchgrass reduced the amount of runoff volume and increased the amount of leachate volume. In total, about 5...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a9536c1b42beffef18132ef0c1695e5 https://doi.org/10.1081/css-100103904 Zobrazit plný text záznamu