Fig. 6. Dissolved- and particle-phase loads of metribuzin in runoff following the application of Lexone DF (a.i. metribuzin, 6.81 g per 162 m² plot). Asterisks represent a significant difference (p = 0.01) in pesticide load between mulch treatments for that runoff event. Numbers in parentheses represent days between application and runoff. Error bars represent the standard deviation of the means.

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