Dimethyldithiocarbamate and diethyldithiocarbamate were converted in soil to dimethylamine and diethylamine, respectively. The accumulation of the amines was increased if the soil also received glycerol, but their formation was not the result of a microbiological reaction. Glyphosate (N-(phosphonomethyl)glycine) was destroyed in soil, but it did not disappear if the soil was autoclaved. Glyphosate disappearance was inhibited in the presence of glycerol. Mylone (tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione) was lost at similar rates from autoclaved and nonsterile soil, and no new secondary amine accumulation was detected. Traces of a nitrosamine appeared in soil treated with dimethyldithiocarbamate but not in samples receiving diethyldithiocarbamate, Glyphosate, or Mylone.
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