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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Rankins, A. Jr.;
Shaw, D. R.;
Boyette, M.;
Kingery, W. L.;
Smith, M. C. |
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| Author Affiliation: | Department of Plant and Soil Science, Mississippi State University, Mississippi State, MS 39762 |
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| Title: | Effectiveness of selected grasses as filter strips for reducing off-site movement of fluometuron and norflurazon |
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| Meeting Info.: | 50th Annual Meeting, Houston, TX, January 20-22, 1997 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 50, January 1997, p. 167. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Heightened concerns over surface water contamination coupled with recent federal conservation legislation has stimulated interest in vegetative filter strips. Recent studies at Mississippi State University have indicated that tall fescue (Festuca arundinacea Schreb.) filter strips can effectively reduce herbicide concentrations in runoff. However, there is a need for an array of choices for filter strips species to broaden the effectiveness of their use due to physiological and morphological limitations of the filter strip species. This field experiment was conducted in 1996 to determine the effectiveness of gant reed (Arundo donax L.), eastern gammagrass (Tripsacum dactyloides L.). big bluestem (Andropogon gerardii Vitman), Alamo switchgrass (Panicum virgatum L.), and tall fescue for reducing fluometuron and norflurazon movement in surface water. Cotton was planted in 4m x 22m soil erosion plots, and fluometuron and norflurazon were each applied PRE at 1.68 kg ai/ha. Treatments included a 0.3m filter strip of each species and an untreated check with no filter strip. Following each runoff event, samples were collected from each plot and stored at 2° C until HPLC analysis. Sampling began on July 12, and continued after each runoff event for 10 weeks. Fluometuron and norflurazon losses in runoff were highest in the initial runoff events. There was at least a 60% reduction in cumulative fluometuron loss when either giant reed, eastern gammagrass, big bluestem, or tall fescue filter strips were present. Cumulative norflurazon loss was reduced by at least 65% when a filter strip was present, regardless of species. Cumulative sediment loss during the sampling period did not exceed 600 kg/ha when a filter strip was included; however, cumulative sediment loss was approximately 900 kg/ha when no filter was present. These results suggest that giant reed, eastern gammagrass, big bluestem, and tall fescue can effectively reduce fluometuron and norflurazon losses in runoff, and all grasses evaluated can be effective for filtering and depositing sediment from surface runoff." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rankins, A. Jr., D. R. Shaw, M. Boyette, W. L. Kingery, and M. C. Smith. 1997. Effectiveness of selected grasses as filter strips for reducing off-site movement of fluometuron and norflurazon. South. Weed Sci. Soc. Proc. 50:p. 167. |
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MSU catalog number: SB 611 .S6 v. 50 |
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