Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe

• DOI: 10.1016/j.ejrh.2024.101734
• Publication Date: 2024-03-20T23:56:37Z
• Authors: M. Holbak; J. Vuaille; E. Diamantopoulos; M.E. Styczen; C.T. Petersen; B.W. Strobel; P. Abrahamsen
• Keywords: Pesticide application; Pesticide degradation

Artificially drained agricultural land in northwest Europe. The use of application timing as a mitigation tool for pesticide leaching to drains was investigated by simulating fate after every day pesticide-specific window, using the agro-hydrological model DAISY. simulations were carried out six combinations pesticide-crop-seasons three synthetically generated climate series and 800 soil profiles. simulated drain concentrations transformed normalized hypothetical adjacent stream. Each then characterized maximum hourly concentration stream, expressed toxic unit (mTU), occurring within 300 days application. result showed that if applied consistently year at best day, leaching, terms 90th percentile mTU, could be reduced up 62% compared random If restricted vary five-day period, mTU 21%. Thus, our study shows there is significant potential reducing tailoring weather conditions.