Reducing herbicide movement to water - A summary of two studies carried out on propyzamide

摘要

The potential loss of propyzamide in water from field drains and from surface runoff was studied at two sites in the UK. The study showed that in both sites the total amount of propyzamide lost from the field was less than 3% of the applied dose. In surface water the total amount of propyzamide lost from fields and the concentration in the water was reduced by the installation of a 6 m buffer strip. For drain flow one replicated study indicated that compared to ploughing and a 20 cm depth tine and disc cultivation, minimum cultivation to 10 cm reduced the amount and concentration of propyzamide by approximately 50%.