Author:
Braverman Michael P.,Locascio Salvadore J.,Dusky Joan A.,Hornsby Arthur G.
Abstract
Laboratory and greenhouse studies were conducted to determine the mobility and bioactivity of thiobencarb on a Pahokee muck, Everglades muck, and Immokalee sand. On all soils > 93% of thiobencarb remained in the upper 1 cm after leaching during unsaturated flow. During saturated flow the retardation factor (RT) of thiobencarb on an Immokalee sand was 68, 20, 2, and 1 with 0, 25, 50, and 75% by volume methanol in 0.01 N CaCl2, respectively. There was a significant log-linear relationship (r2= 0.97) between the Freundlich adsorption values (Kf) estimated from RTvalues and the percentage by volume methanol of the leachate. In general, thiobencarb in combination with overhead irrigation reduced lettuce vigor and plant dry weight on an Immokalee sand more than with subsurface irrigation.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference33 articles.
1. The Leaching of Monuron from Lakeland Sand Soil. Part I. The Effect of Amount, Intensity, and Frequency of Simulated Rainfall
2. Effects of Environment upon Herbicides Applied Preemergence
3. Rao P.S.C. and Jessup R. E. 1983. Sorption and movement of pesticides and other toxic substances in soils. Pages 183–201 in Nelson D. W. , Tanji K. K. , and Elrick D. E. , eds. Chemical Mobility and Reactivity in Soil Systems. Am. Soc. Agron. and Soil Sci. Soc. Spec. Publ. No. 11.
4. Influence of organic cosolvents on leaching of hydrophobic organic chemicals through soils
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