1. 4.6 by 250 mm Absorbosphere. Alltech Associates, Inc., 2051 Waukegan Road, Deerfield, IL 60015.
2. Degradation of pendimethalin in the soil;Zimdahl;Weed Sci.,1984
3. Spectrflow 400 Solvent Delivery System, Model 430 Gradient former, and Kratos Model 783 Absorbance Detector. Applied Biosystems Inc., San Jose, CA 95134.
4. Abbreviations: CV, coefficient of variation; DAII, days after initial irrigation; DNA, dinitroaniline; DLR, dislodgeable residue; HAT, hours after treatment; WDG, water-dispersible granule.
5. Photochemical Decomposition of Trifluralin