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CLO-DVL have optimised a method using mineral chelates for quantitative evaluation of spray deposits. This method was used to assess spray distributions with two novel spraying techniques. Deposition tests were performed with a manually pulled trolley and a motorised vehicle both equipped with vertical spray booms, with water-sensitive paper and mainly with the manganese and molybdenum chelates as tracers. Filter papers were attached to the tomato and pepper plants at several heights to obtain an indication of the spray distribution in the crop. Particular attention was paid to the effect on the spray distribution of the vertical nozzle distance (35 cm vs 50 cm) and the spray distance to the crop. The tests demonstrated that a nozzle spacing of 35 cm delivers a much better spray distribution than one of 50 cm. The optimal spray distance for flat fan nozzles with a spray angle of 80° and a nozzle spacing of 35 cm is about 30 cm.

Originele taal-2Engels
TitelInternational Advances in Pesticide Application
EditorsR P Bateman, S E Cooper, J V Cross, C R Glass, T H Robinson, D Stock, W A Taylor, P Walklate, E W Thornhill
Aantal pagina's6
Plaats productieWarwick, UK
UitgeverijAssociation of Applied Biologists
StatusGepubliceerd - 2004
EventInternational Advances in Pesticide Application (2004) - University of London, Verenigd Koninkrijk
Duur: 5-jan-20047-jan-2004

ID: 241540