SIMAZINE AND LINURON RESIDUES IN PEACH ORCHARD SOIL AFTER REPEATED ANNUAL APPLICATIONS

Abstract
The persistence and downward movement of simazine and linuron residues in uncultivated orchard soil after 7 consecutive annual applications was studied. On oat bioassay was used to determine residue levels. The breakdown rate of linuron resulted in a carryover of 30-40% of the annual treatment rate. Less than 10% of the simazine applied annually remained in the year following application.

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