Description Usage Arguments Author(s) References Examples
TRV measured in m^3*ha^-1.
1 | TRV_lidar_function(height_canopy, width_canopy, row_spacing)
|
height_canopy |
use Height_canopy_function, measured in meters. |
width_canopy |
use Width_canopy_function, measured in meters. |
row_spacing |
row spacing measured in meters. |
Monica Fernanda Rinaldi
Byers, R.E., 1987. Tree-row-volume Spraying Rate Calculator for Apples. HortScience 22, 506-507.
Gil, E., Escola, A., Rosell, J.R., Planas, S., Val, L., 2007. Variable rate application of plant protection products in vineyard using ultrasonic sensors. Crop Prot. 26, 1287-1297.
Gil, E., Escola, A., 2009. Design of a Decision Support Method to Determinate Volume Rate for Vineyard Spraying. ASABE. 25, 145-151.
1 2 3 4 5 6 7 8 9 10 11 12 | ## Should be DIRECTLY executable !! ----
## Here need use: Height_canopy_function and Width_canopy_function or values measured manually.
height_canopy <- 1.995 ## the value is the result of Height_canopy_function.
width_canopy <- 0.426 ## the value is the result of Width_canopy_function.
row_spacing = 2.9 ## measured in meters.
## The function is currently defined as
TRV_lidar_function <- function(height_canopy,width_canopy,row_spacing){
TRV <-height_canopy * width_canopy * 10000 / row_spacing
return(TRV)
}
TRV <- TRV_lidar_function(height_canopy,width_canopy,row_spacing)
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