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#' Deposition from spray drift expressed as percent of the applied dose as
#' published by the JKI
#'
#' Deposition from spray drift expressed as percent of the applied dose as
#' published by the German Julius-Kühn Institute (JKI).
#'
#' The data were extracted from the spreadsheet cited below using the R code
#' given in the file `data_generation/drift_data_JKI.R` installed with this
#' package. The file itself is not included in the package, as its licence is
#' not clear.
#'
#' Additional spray drift values were taken from the publication by Rautmann
#' et al. (2001). Specifically, these are the values for early vines, and
#' the values for a 3 m buffer which are incomplete in the spreadsheet.
#'
#' Note that for vegetables, ornamentals and small fruit, the values for
#' field crops are used for crops < 50 cm, and the vales for late vines are
#' used for crops > 50 cm. In the JKI spreadsheet, it is indicated that
#' these values are used for spray applications with handheld/knapsack
#' equipment (tragbare Spritz- und Sprühgerate).
#'
#' Values for non-professional use listed in the JKI spreadsheet were not
#' included.
#'
#' @name drift_data_JKI
#' @docType data
#' @format A list currently containing matrices with spray drift percentage
#' data for field crops (Ackerbau), and Pome/stone fruit, early and late
#' (Obstbau frueh, spaet).
#' @source JKI (2010) Spreadsheet 'Tabelle der Abdrifteckwerte.xls', retrieved
#' from
#' http://www.jki.bund.de/no_cache/de/startseite/institute/anwendungstechnik/abdrift-eckwerte.html
#' on 2015-06-11, not present any more 2024-01-31
#'
#' Rautmann, D., Streloke, M and Winkler, R (2001) New basic drift values in
#' the authorization procedure for plant protection products Mitt. Biol.
#' Bundesanst. Land- Forstwirtsch. 383, 133-141
#' @keywords datasets
#' @examples
#' drift_data_JKI
"drift_data_JKI"
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