Assessment of spray drift potential reduction for hollow-cone nozzles: Part 1. Classification using indirect methods
MetadataShow full item record
Spray drift is one of the main pollution sources identified when pesticides are sprayed on crops. In this work, in order to simplify the evaluation of hollow-cone nozzles according to their drift potential reduction, several models commonly used were tested by three indirect methods: phase Doppler particle analyser (PDPA) and two different wind tunnels. The main aim of this study is then to classify for the first time these hollow-cone nozzle models all of them used in tree crop spraying (3D crops). A comparison between these indirect methods to assess their suitability and to provide guidelines for a spray drift classification of hollow-cone nozzles was carried out. The results show that, in general terms, all methods allow hollow-cone nozzle classifications according to their drift potential reduction (DPR) with a similar trend. Among all the parameters determined with the PDPA, the V100 parameter performed best in differentiating the tested nozzles among drift reduction classes. In the wind tunnel, similar values were obtained for both sedimenting and airborne drift depositions. The V100 parameter displayed a high correlation (up to R2 = 0.948) with the drift potential tested with the wind tunnel. It is concluded that in general, the evaluated indirect methods provide equivalent classification results. Additional studies with a greater variety of nozzle types are required to achieve a proposal of harmonized methodology for testing hollow-cone nozzles.
Is part ofScience of the Total Environment, 2019, vol. 692, p. 1322-1333
European research projects
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Gregorio López, Eduard; Torrent Martí, Xavier; Planas de Martí, Santiago; Rosell Polo, Joan Ramon (Elsevier B.V., 2019-06-11)Pesticide spray drift poses health hazards to humans and causes a significant impact on the environment. In this work the capacity of an ad hoc light detection and ranging (LiDAR) system to differentiate spray nozzles ...
Gregorio López, Eduard; Torrent Martí, Xavier; Solanelles Batlle, Francesc; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Masip Vilalta, Joan; Ribes Dasi, Manuel; Planas de Martí, Santiago; Rosell Polo, Joan Ramon (Association of Applied Biologists, 2016)Lidar technology is becoming a promising alternative for spray drift measurement to the labour and time-expensive methodologies based on the ISO 22866 standard. This paper presents last advancements in an eye-safe lidar ...
Determination of spray drift and buffer zones in 3D crops using the ISO standard and new LiDAR methodologies Torrent Martí, Xavier; Gregorio López, Eduard; Rosell Polo, Joan Ramon; Arnó Satorra, Jaume; Peris Giner, Miquel; van de Zande, Jan C.; Planas de Martí, Santiago (Elsevier, 2020-01-15)Spray drift generated in the application of plant protection products in tree crops (3D crops) is a major source of environmental contamination, with repercussions for human health and the environment. Spray drift contamination ...