Temporal and spatial variability of spray drift around a sprayed field

In a series of field experiments in the Netherlands, spray drift is evaluated for various crop types (i.e. potato, sugarbeet, cereals, flower bulbs and maize) and bare soil surface for different spray application techniques. Crop type had an effect on spray drift depending on the distance from field boundary and the spray application technique. This leads to further manipulation of the basic drift curves to account for crop type in the evaluation procedure for crop protection products. The effects of: boom movement, wind direction alongside the field and starting and stopping at the headlands were also evaluated by using spray drift deposit measurements. Spray drift deposition on surface water can be evaluated not only as a fixed value related to the drift vs. distance curve but also as a variable amount based on aforementioned sources of variation. A GIS approach for a polder area is presented, showing the development of a tool that can potentially be used for spray drift evaluation in the EU Water Framework Directive.

Bibliographic Details

Main Authors:	van de Zande, J.C., Holterman, H.J., Michielsen, J.G.P., Stallinga, H.
Format:	Article in monograph or in proceedings biblioteca
Language:	English
Published:	Association of Applied Biologists
Subjects:	Life Science,
Online Access:	https://research.wur.nl/en/publications/temporal-and-spatial-variability-of-spray-drift-around-a-sprayed-
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