title: Persistence of DDT in orchard soils.
mesh_terms: D001577:Benzophenones / Q000032:analysis; D002713:Chlorine / Q000032:analysis; D003634:DDT / Q000032:analysis*; D003633:Dichlorodiphenyl Dichloroethylene / Q000032:analysis; D003632:Dichlorodiphenyldichloroethane / Q000032:analysis; D000431:Ethanol / Q000032:analysis; D007306:Insecticides / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis; D012987:Soil / Q000032:analysis*; D013997:Time Factors
chemical_list: D001577:Benzophenones; D007306:Insecticides; D010573:Pesticide Residues; D012987:Soil; D000431:Ethanol; D003633:Dichlorodiphenyl Dichloroethylene; D002713:Chlorine; D003634:DDT; D003632:Dichlorodiphenyldichloroethane