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FIELD EVALUATION OF RESPONSE TIMES FOR A VARIABLE RATE (PRESSURE–BASED AND INJECTION) LIQUID CHEMICAL APPLICATORS
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Applied Engineering in Agriculture. Vol. 19(3): 273–282 . (doi: 10.13031/2013.13659) @2003
Authors: E. A. Anglund, P. D. Ayers
Keywords: GPS, Sprayer, Variable rate application, Lag time
This study investigated the field performance of a ground sprayer for applying chemicals at constant and variable
application rates with both pressure–based and injection sprayer control technology. Evaluation of the variable rate chemical
application system was performed by assessing the field application accuracy through instrumentation of the system to
monitor sprayer chemical flow, sprayer field location, and sprayer speed. The data collected provided information for
determining the sprayer application rate for each constant and variable rate application.