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Reduction of herbicide contamination in flowing waters
Author(s) -
Frede HansGeorg,
Fischer Peter,
Bach Martin
Publication year - 1998
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.1998.3581610407
Subject(s) - environmental science , contamination , surface runoff , pesticide , nonpoint source pollution , pesticide application , watershed , pollution , environmental engineering , glyphosate , hydrology (agriculture) , agronomy , ecology , biology , engineering , geotechnical engineering , machine learning , computer science
A brief survey of potential pathways of herbicide transport in flowing waters is given. For a small watershed in Hesse (central Germany) during 4 spraying periods (spring and autumn 1995 and 1996) all point and non‐point sources were measured. It was proved that faulty spray practice occurred in 60% of 260 applications. However this source caused no evident herbicide contamination in running waters. More than 90% of the total herbicide load has been detected as point sources originating from the 40 farms connected to a sewage plant. Compared to these point sources, the pesticide pollution originating from runoff and subsurface drainage was not significant. An example is given describing how advisory measures in pesticide handling can reduce the loads by 80%.