Interception of spray drift by border structures. Part 1: wind tunnel experiments.
This research investigated the drift-intercepting potential of structures surrounding the field borders, like artificial screens and crops, which are not yet a part of the drift mitigation measures for field crop sprayers in Belgium. Drift-interception experiments were performed in the wind tunnel of the International Centre for Eremology (Ghent University, Belgium) with various interception structures: Artificial screens with heights of 0.5, 0.75 and 1 m and screen open areas of 16, 36 and 63%; a row of plastic Christmas trees with heights of 0.5 and 0.75 m; and a potato canopy. The interception structure was positioned at 1 m from the field border. From the results it was found that type of border structure has a pronounced effect on the drift interception, while the height of the border structure had no significant effect.
De Schampheleire
M
M
Ghent University, Laboratory of Crop Protection Chemistry Coupure Links 653, BE-9000 Gent, Belgium. Mieke.Deschampheleire@UGent.be
Nuyttens
D
D
Dekeyser
D
D
Verboven
P
P
Cornelis
W
W
Gabriels
D
D
Spanoghe
P
P
D000336:Aerosols; D000383:Agriculture / Q000295:instrumentation* / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods; D004787:Environmental Pollution / Q000032:analysis*; D010316:Particle Size; D010575:Pesticides / Q000032:analysis*; D014919:Wind
D000336:Aerosols; D010575:Pesticides