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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/2000/72162,%20Cornell,%20Haith,%20runoff.PDF
Last checked: 02/13/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Haith, Douglas A. |
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| Author Affiliation: | Principal Investigator, Cornell University |
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| Monograph Title: | Pesticide Runoff Model for Turfgrass: Development, Testing and Application: 2000 Progress Report to Green Section Research, U.S. Golf Association, 2000. |
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| Publishing Information: | Ithaca, New York: Cornell University, Department of Agricultural & Biological Engineering |
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| # of Pages: | 7 |
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| Collation: | [1], 6 pp. |
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| Abstract/Contents: | "Goals: Adapt a previously developed pesticide runoff model to turfgrass conditions and test the accuracy of model predictions by comparisons with data from field experiments.; Use the model to estimate pesticide runoff probabilities (return periods) for a range of chemicals and locations in the eastern U.S.; Progress: TurfPQ model is a pesticide runoff model developed exclusively for turf. It has a runoff component based on the U.S. Soil Conservation Service Curve Number Equation, as described by Haith and Andre (2000). The chemical model is a mass balance of the pesticide in the turf foliage and thatch. The model was tested using published plot runoff data for 52 runoff events in four states, three soil hydrologic groups, and four different turfgrasses (Bermudagrass, bentgrass, tall fescue and ryegrass). Estimated and observed pesticide runoff (y′ and y, respectively) for each event are compared in Figure 1. Although events generally lie above the line y′=y, most are relatively close to the line. Mean predicted pesticide runoff is 3.2% of application, compared with an observed mean of 2.1%. TurfPQ captured the dynamics of the pesticide runoff events well with R2=0.76. To the best of our knowledge, TurfPQ is the first pesticide runoff model developed exclusively for turf. Other models such as EPIC, GLEAMS and OPUS which have been appled to turf were originally developed for agricultural crops, and are much more data intensive. Although comparisons of accuracy are difficult because TurfPQ is the only model to have been tested with independent data sets for multiple chemicals and sites, it appears that the accuracy of TurfPQ meets or exceeds that of the more complex models." |
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| Language: | English |
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| References: | 10 |
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| See Also: | See also related summary article, "Pesticide runoff model for turfgrass: Development, testing, and application", 2000 Turfgrass and Environmental Research Summary [USGA], 2000, p. 60, R=72162. R=72162 |
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| Note: | Tables
Graphs
"November 1, 2000"
"2000 Executive Summary"
"2000 Progress Report to Green Section Research, U.S. Golf Association"
Also appears as pp. 1173-179 in the USGA Turfgrass Research Committee Reporting Binders for 2000. |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 215276 |
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Last checked: 02/13/2013
Requires: PDF Reader |
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