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Spray Deposit Distribution from Agricultural Boom Sprayers in Dynamic Conditions
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 011054, 2001 ASAE Annual Meeting. (doi: 10.13031/2013.7335) @2001
Authors: Andreas Herbst & Pamela Wolf
Keywords: Boom sprayer, spray boom movement, spray deposit distribution
One of the most important requirements on agricultural boom sprayers is to produce
a uniform distribution of the applied pesticide on the target area. This is commonly tested on a
patternator. Since it is not possible to consider the influence of boom movements with such a
test, a new test procedure has been developed by the Federal Biological Research Centre
Braunschweig (BBA). The travel of the sprayer on a typical field track is simulated by a servo-hydraulic
test bench and the dynamic spray deposit distribution below the moving boom is
measured using a special system on-line in well defined conditions. Several types of sprayers
were tested and a range of 5 to 22% was found for coefficient of variation of spray deposit
distribution at the boom tip. Alternatively, other approaches have been examined for
determining dynamic spray deposit distribution on the basis of dynamic spray boom behavior
identification and simulation of static spray distribution.