Heptachlor and dieldrin disappearance from a field soil measured by annual residue determinations.
D004026:Dieldrin / Q000032:analysis*; D006533:Heptachlor / Q000032:analysis*; D007700:Kinetics; D010573:Pesticide Residues / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*; D013997:Time Factors
D010573:Pesticide Residues; D012989:Soil Pollutants; D006533:Heptachlor; D004026:Dieldrin