Full TGIF Record # 1965
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Author(s):Hiltibran, Robert C.; Turgeon, A. J.
Author Affiliation:Hiltibran: Biochemist, Illinois Natural History Survey; Turgeon: Prof., Dep. of Hort., Univ. of Illinois, Urbana, IL
Title:Turfgrass response to some herbicides and metals in irrigation water
Section:Turf, ornamentals, aquatics, and horticultural crops
Other records with the "Turf, ornamentals, aquatics, and horticultural crops" Section
Meeting Info.:Milwaukee, Wisconsin: December 9-11, 1975
Source:Proceedings: North CentralWeed Control Conference. Vol. 30, 1975, p. 174.
# of Pages:1
Publishing Information:[Urbana, Illinois: Department of Agronomy, University of Illinois]
Keywords:TIC Keywords: Simazine; Poa annua; Irrigation; Agrostis stolonifera
Abstract/Contents:"One inch of irrigation water containing two aquatic herbicides or metal ions was applied to 4 ft by 6 ft areas in triplicate to estimate the effects of these agents on pennacross [Penncross] creeping bentgrass, Agrostis palustris, and bluegrass, Poa annua. During 1973 and 1975 the rates of simazine and dichlobenil were 0.5 and 2 ppmw, respectively. However, these rates may not represent their general use patterns when introduced into the aquatic environment. Therefore, in 1975 simazine at a rate of 0.5 ppmw was applied in the initial weekly application on June 27 and on 7 succeeding weeks the rate of application of simazine was determined from a dissipation curve of simazine from natural water. Also, simazine at a rate of 0.5 ppmw simazine was applied to a small pond, and 1 inch of water from the pond was applied to a small pond, and 1 inch of water from the pond was applied to test areas for 8 weeks. Water ws collected for estimation of the simazine content. Similarly, the weekly rates of application of dichlobenil were determined from the dichlobenil dissipation curves published by Frank and Comes (Weeds 15:210-213, 1967). The initial dichlobenil rate obtained after the application of 4 lb/A of dichlobenil in the water was 0.18 ppmw. Simazine in the simulated pond water caused severe damage to the bentgrass, but there was less damage to the bentgrass after application of pond water containing simazine. Simazine did not cause damage in the bluegrass treated areas. Dichlobenil did not cause any damage to the turfgrasses. The following metals, as chloride salts, were applied in 1 inch of simulated irrigation water: cadmium 10 ppmw; calcium 204 ppmw; chromium 103 ppmw; copper 49 ppmw; iron 210 ppmw; lead 55 ppmw; magnesium 53 ppmw; manganese 18 ppmw; nickel 10 ppmw; and zinc 220 ppmw. The rates were based on the metal content of dried sludge. Zinc was the only metal to affect both turfgrasses, and nickel affected only the bentgrass. the other metals did not cause damage to the turfgrasses."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hiltibran, R. C., and A. J. Turgeon. 1975. Turfgrass response to some herbicides and metals in irrigation water. Res. Rep. North Cent. Weed Control Conf. 30:p. 174.
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