| |
| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1996/Environmental/46991,%20OK%20State,%20Baird.PDF
Last checked: 11/05/2013
Requires: PDF Reader |
|---|
| Publication Type:
| Report |
|---|
| Material Type: | Manuscript |
|---|
| Monographic Author(s): | Baird, J. H.; Cole, J. T.; Huhnke, R. L.; Basta, N. T.; Payton, M. E.; Johnson, G. V.; Storm, D. E.; Smolen, M. D. |
|---|
| Author Affiliation: | Baird: Turfgrass Science; Cole: Environmental Sciences Graduate Assistant; Huhnke: Agricultural Engineering; Basta: Soil Chemistry; Payton: Statistics; Johnson: Soil Fertility; Storm: Water Resources Engineering; and Smolen: Water Quality |
|---|
| Monograph Title: | Evaluation of Best Management Practices to Protect Surface Water Quality from Pesticides and Fertilizer Applied to Bermudagrass Fairways: [1996 Annual Research Report], 1996. |
|---|
| Publishing Information: | [Stillwater, Oklahoma]: Oklahoma Agricultural Experiment Station, Oklahoma State University |
|---|
| # of Pages: | 52 |
|---|
| Collation: | 15, [1], 36 pp. |
|---|
| Abstract/Contents: | "This project represents a team effort of scientists in turfgrass science, soil fertility and chemistry, engineering, water quality, and statistics aimed at developing effective and practical management practices to protect surface water from runoff of pesticides and fertilizer applied to golf course bermudagrass fairways and other turf areas. In 1995, research was conducted to evaluate the influence of buffer-strip length, height, and aerification on pesticide and nutrient runoff from bermudagrass turf. A manuscript describing the research was submitted to the Journal of Environmental Quality in September 1996. In 1996, two experiments were conducted to further examine the effects of buffer-strip mowing height and buffer-strip length on pesticide and nutrient runoff from bermudagrass (Cynodon dactylon L. Pers.) turf on a Kirkland silt loam (fine, mixed, thermic Udertic Paleustolls) on a 6% slope. In the mowing height experiment, treatments evaluated were buffer-strips (6-ft width x 16-ft length) mowed at 0.5, 1.5, and 3.0 in. In addition, a buffer-strip mowed at 1.5 in was used as an untreated control to determine antecedent nutrient levels. In the length experiment, treatments evaluated were buffer-strips (6-ft width) measuring 0, 4, 8, and 16 ft in length and mowed at 1.5 in. In both experiments, the area receiving pesticides and fertilizer (6-ft width x 16-ft length) was located upslope from the buffer and was mowed at 0.5 in. Urea (applied in mowing height experiment), sulfur-coated urea (SCU) (applied in the buffer-strip length experiment), triple superphospate, chlorpyrifos [granular (applied in the mowing height experiment) or wettable powder (applied in the length experiment)], and the dimethylamine salts of 2,4-D, mecoprop, and dicamba were applied at recommended rates to each experiment. A portable rainfall simulator was used to apply a precipitation rate of 2.5 in/h for 75 min within 24 h after chemical applications. Chlorpyrifos recoveries in the 1996 runoff samples were much lower than found in 1995; consequently, chlorpyrifos data were not presented and the runoff samples will be reanalyzed using an enzyme-linked immunosorbant assay (ELISA) specific for detection of the insecticide. In the mowing height experiment, the 3.0-in buffer was most effective in delaying time to start of runoff and decreasing total runoff volume. Pesticide and nutrient losses to surface runoff were as great as 11% and 10%, respectively, from the 1.5-in mowing height treatment. Overall, there appeared to be no advantage in mowing the buffer-strip either 0.5- or 1.5-in in terms of reducing pesticide and nutrient runoff. Although not statistically significant, the 3.0-in buffer-strip mowing height was most effective in reducing pesticide nutrient runoff in July compared to the other treatments. However, in August, pesticide and nutrient recoveries in runoff water from the 3.0-in buffer-strip treatment were as great as the other treatments. The positive effect of the 3.0-in buffer was most likely overcome by higher soil moisture conditions and subsequent surface runoff of water in August compared to July. Pesticide and nutrient loss to surface runoff was less than 7% in the buffer-strip length experiment. The differences in surface runoff losses between the two experiments were most likely due to differences in soil moisture caused by experiment location; the buffer-strip length study was positioned on the drier upslope from the mowing height study. Overall, data from this experiment reaffirmed that buffer-strips are effective in reducing pesticide and nutrient runoff. In addition, these data may be very useful for extrapolating effective buffer-strip lengths for testing on larger scale watersheds. Reduction in loss of nitrogen in surface runoff occurred from SCU applied in the buffer-strip length study compared to urea applied in the buffer-strip mowing height study; however, these results may have been caused by differences in soil moisture between experiment locations. Similar to 1995, results of the 1996 experiments confirm that use of buffer-strips, use of pesticides and fertilizers with lower water solubilites, and avoidance of pesticide and nutrient application when soil is saturated help reduce chemical loss of surface runoff from turf." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | See also related summary article "Evaluation of best management practices to protect surface water from pesticides and fertilizer applied to bermudagrass fairways" 1996 Turfgrass and Environemtanl Research Summary, 1996, pp. 58-59, R=46991. R=46991 |
|---|
| Note: | Also appears as pp. 00002-00053 in the USGA Turfgrass Research Committee Reporting Binders for 1996.
"1 November 1995-31 October 1996"
Includes "Appendix"; pp. 15-36
Figures
Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 232091 |
| Fastlink to access this record outside TGIF: https://tic.lib.msu.edu/tgif/flink?recno=232091 |
| If there are problems with this record, send us feedback about record 232091. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://archive.lib.msu.edu/tic/rpr/1996/Environmental/46991,%20OK%20State,%20Baird.PDF
Last checked: 11/05/2013
Requires: PDF Reader |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
