Precision spraying; Spray retention; Drop impact; Fluoremetry; High-speed imaging; Barley
Abstract :
[en] Laboratory studies were conducted to validate the effectiveness of the use of high-speed imaging method to replace chemical nalysis by fluoremetrie. Measurements were performed with a high-speed camera coupled with a retro-LED lighting. Size and velocity of the drop were extracted by image analysis. Drop impact types were determined by the operator. Drops were produced with a flat-fan nozzle mounted on a movable ramp. Two surfactants (Break-Thru® S240 and Li700 ®) were sprayed on BBCH 12 barley leaves to highlight the effect of the reduction of surface tension. Relative volume proportions were computed within of an energy scale divided into 11 classes based on the Weber number. results are compared to the results of the chemical analysis by spectrofluerometry.
Boukhalfa, Hassina dite Hafida ; Université de Liège - ULiège /Université Mohamed Khidar Biskra - Algérie > Sciences et technologie de l'environnement > unité de mécanique et construction > Doct. sc. agro. & ingé. biol.
Massinon, Mathieu ; Université de Liège - ULiège > Sciences et technologie de l'environnement > Mécanique et construction
Lebeau, Frédéric ; Université de Liège - ULiège > Sciences et technologie de l'environnement > Mécanique et construction
Language :
English
Title :
High-speed imaging use to predict spray retention on barley leaves
Publication date :
21 May 2013
Event name :
65th International Symposium on Crop Protection
Event organizer :
Faculty of Bioscience Engineering
Event place :
Ghent, Belgium
Event date :
21 mai 2013
Audience :
International
Journal title :
Communications in Agricultural and Applied Biological Sciences