Temporal evolution of atrazine and metolachlor concentrations exported in runoff and subsurface water with vegetated filter strips
نویسندگان
چکیده
منابع مشابه
Mineralisation of atrazine, metolachlor and their respective metabolites in vegetated filter strip and cultivated soil.
In vegetated filter strips (VFS) the presence of perennial vegetation, rhizodeposition of labile organic substrates and the accumulation of an organic residue thatch layer may enhance microbial numbers and activity, thereby increasing the potential for mineralisation of herbicides and herbicide metabolites retained during run-off events. The objective of this laboratory experiment was to compar...
متن کاملEffectiveness of Vegetated Buffer Strips in Reducing Pesticide Transport in S imulated Runoff
Several processes take place within vegetated buffer strips that affect their performance. To better understand these processes, a runoff study was conducted to evaluate vegetated buffer strips performance in reducing atrazine, metolachlor, and chlorpyrifos transport as affected by the drainage area to buffer strip area ratio. The simulated runoff water mixed with pesticide–treated soil was dis...
متن کاملAdsorption and desorption of metolachlor and metolachlor metabolites in vegetated filter strip and cultivated soil.
Previous studies have indicated that dissolved-phase metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(methoxy-1-methylethyl) acetamide] transported in surface runoff is retained by vegetative filter strips to a greater degree than either metolachlor oxanilic acid 12-[(2-ethyl-6-methylphenyl) (2-methoxy-1-methylethyl)amino]-2-oxo-acetic acid] (OA) or metolachlor ethanesulfonic acid [2-[(2-eth...
متن کاملInfiltration and adsorption of dissolved atrazine and atrazine metabolites in buffalograss filter strips.
Vegetated filter strips (VFS) potentially reduce the off-site movement of herbicides from adjacent agricultural fields by increasing herbicide mass infiltrated (Minf) and mass adsorbed (Mas) compared with bare field soil. However, there are conflicting reports in the literature concerning the contribution of Mas to the VFS herbicide trapping efficiency (TE). Moreover, no study has evaluated TE ...
متن کاملAtrazine and metolachlor in surface runoff under typical rainfall conditions in southern Louisiana.
Atrazine and metolachlor are commonly detected in surface water bodies in southern Louisiana. These herbicides are frequently applied in combination to corn, and atrazine to sugarcane, in this region. A study was conducted on the runoff of atrazine and metolachlor from 0.21 ha plots planted to corn on Commerce silt loam, a Mississippi River alluvial soil. The study, carried out over a three-yea...
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ژورنال
عنوان ژورنال: Agronomy for Sustainable Development
سال: 2012
ISSN: 1774-0746,1773-0155
DOI: 10.1007/s13593-012-0087-8