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The effects of application speed, boom height and spray characteristics on drift reduction potentials were measured using a drift test bench ISO/FDIS 22369-3 under controlled indoor conditions using a fully automated spray track. The results were compared with those from other drift assessment means. Tests confirmed the already known effects of nozzle type, spray pressure and boom height on drift potential with drift reduction potential values ranging from -127.7% up to 93.7%. A good correlation between drift reduction potentials from the test bench (DRPB) and the wind tunnel measurements (DRPW) was found which was less the case for the field experiments (DRPF). In addition, a good correlation between V75 and DRPB was found with an R² of 0.93. By presenting spray deposition curves on the test bench as a function of time between passing of the spray and uncovering the collectors, the effect of speed on drift potential was assessed which was in contrast with the field drift measurements probably because of the limited wake effects. This approach should be further investigated with real sprayers and with an adapted methodology (actuator position, test bench length).

Originele taal-2Engels
TitelAspects of Applied Biology : International Advances in Pesticide Application
EditorsP G Andersen, P Balsari, P I Carpenter, S E Cooper, C R Glass, B Magri, P C H Miller, C Mountford-Smith, T H Robinson, D Stock, W A Taylor, J van de Zande
Volume122
UitgeverijAssociation of Applied Biologists
Publicatiedatum2014
Pagina's293-301
ISBN van geprinte versie0265-1491
StatusGepubliceerd - 2014
EventInternational Advances in Pesticide Application - Oxford, Verenigd Koninkrijk
Duur: 8-jan-201410-jan-2014
http://www.aab.org.uk

ID: 2202825