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Behavior of atrazine in soils of tropical zone. Degradation, mobility and uptake of atrazine residues from soils in a crop rotation system (maize/beans)


, : Behavior of atrazine in soils of tropical zone. Degradation, mobility and uptake of atrazine residues from soils in a crop rotation system (maize/beans). Journal of Environmental Science and Health Part B, Pesticides, Food Contaminants, and Agricultural Wastes 31(2): 203-224

Movement and degradation of 14C-atrazine was studied in undisturbed soil columns (0.50 m length x 0.10 m diameter) of gley humic and deep red latosol from a maize crop region of Sao Paulo state, Brazil. Atrazine residues were largely confined to the 0-20 cm layers over a 12 month period. Atrazine degraded to the dealkylated metabolites deisopropylatrazine and deethylatrazine, but the major metabolite was hydroxyatrazine, mainly in the gley humic soil.

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