Insecticide residues in soils on 16 farms in southwestern Ontario--1964, 1966, and 1969.
D002849:Chromatography, Gas; D005638:Fruit / Q000032:analysis; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides / Q000032:analysis; D009864:Ontario; D009943:Organophosphorus Compounds; D010573:Pesticide Residues / Q000032:analysis*; D010947:Plants, Toxic; D012987:Soil / Q000032:analysis*; D014026:Nicotiana / Q000032:analysis; D014675:Vegetables / Q000032:analysis
D006843:Hydrocarbons, Chlorinated; D007306:Insecticides; D009943:Organophosphorus Compounds; D010573:Pesticide Residues; D012987:Soil