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Calculate the drift percentages according to the Rautmann formula

Source: R/PEC_sw_drift.R
drift_percentages_rautmann_formula.Rd

Calculate the drift percentages according to the Rautmann formula

Usage

drift_percentages_rautmann_formula(
  distances,
  applications = 1,
  crop_group_focus = c("arable", "hops", "vines, late", "vines, early", "fruit, late",
    "fruit, early", "aerial")
)

Arguments

distances

The distances in m for which to get PEC values

applications

Number of applications for selection of drift percentile

crop_group_focus

One of the crop groups as used in drift_parameters_focus

See also

drift_parameters_focus, PEC_sw_drift

Examples

# Compare JKI data with Rautmann formula
# One application on field crops, for 1 m, 3 m and 5 m distance
drift_data_JKI[[1]][as.character(c(1, 3, 5)), "Ackerbau"]
#>    1    3    5 
#> 2.77 0.95 0.57 
drift_percentages_rautmann_formula(c(1, 3, 5))
#> [1] 2.7593000 0.9424748 0.5719342

# One application to early or late fruit crops
drift_data_JKI[[1]][as.character(c(3, 5, 20, 50)), "Obstbau frueh"]
#>     3     5    20    50 
#> 29.20 19.89  2.77  0.30 
drift_percentages_rautmann_formula(c(3, 5, 20, 50), crop_group = "fruit, early")
#> [1] 29.1973659 19.8844422  2.7618138  0.3012008
drift_data_JKI[[1]][as.character(c(3, 5, 20, 50)), "Obstbau spaet"]
#>     3     5    20    50 
#> 15.73  8.41  1.09  0.22 
drift_percentages_rautmann_formula(c(3, 5, 20, 50), crop_group = "fruit, late")
#> [1] 15.7246994  8.4108487  1.0813887  0.2155992