Experimental study of factors influencing the risk of drift from field sprayers, Part 2: Spray application technique.

David Nuyttens, Mieke De Schampheleire, Walter Steurbaut, Katrijn Baetens, Pieter Verboven, Bart Nicolaï, Herman Ramon, Bart Sonck

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureC1: Artikels in proceedings van wetenschappelijke congressen, die niet inbegrepen zijn in A1, A2, A3 of P1

Uittreksel

Recently, spray drift and its effects have become an important aspect of risk assessment in the registration process of pesticides in Belgium.  In this regulation, drift reducing spray application techniques can be used to reduce buffer zones.  The purpose of this research is to measure and compare the amount of drift sediment for different spray application techniques under field conditions.  A drift prediction equation for the reference spraying was used to compare other spraying techniques with the reference spraying, under different weather conditions.  Drift measurements were performed for several combinations of nozzle type (flat fan, low-drift, air injection) and size (ISO 02, 03, 04 and 06), spray pressure (2, 3 and 4 bar), driving speed (4, 6, 8 and 10 km.h-1) and spray boom height (0.3, 0.5 and 0.75 m). Nozzle type as well as spray pressure, driving speed and spray boom height, have an important effect on the amount of spray drift. Larger nozzle sizes, lower spray pressures and driving speeds and lower spray boom heights generally reduce spray drift. Concerning nozzle types, air injection nozzles have the highest drift reduction potential followed by the low-drift nozzles and the standard flat fan nozzles

TaalEngels
TitelInternational Advances in Pesticide Application
EditorsL S Alexander, S E Cooper, J Cross, C R Glass, B Magri, T H Robinson, D Stock, B Taylor, P Walklate, J van de Zande
Aantal pagina's8
Volume77
Plaats productieWarwick, UK
UitgeverijAssociation of Applied Biologists
Datum2006
Uitgave2
Pagina's331-339
StatusGepubliceerd - 2006
EvenementInternational Advances in Pesticide Application (2006) - Cambridge, Verenigd Koninkrijk
Duur: 10-jan-200612-jan-2006

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