Effects of tillage and application rate on atrazine transport to subsurface drainage: Evaluation of RZWQM using a six-year field study.

Highlights: [•] RZWQM assessed for atrazine transport in subsurface drainage. [•] RZWQM adequately predicted atrazine concentrations in drainage. [•] Six years of data show atrazine concentrations greater under no-till than till. [•] Atrazine in drainage sensitive to macropore flow and storm timing/intensity. [•] Atrazine in drainage also sensitive to its application rate and tillage. [Copyright &y& Elsevier]