Calculating Band Area As Percentage Of Field Area - Micron Spraydome Series Instruction Manual

36
5.2

Calculating Band Area as Percentage of Field Area

With a band sprayer it is important to distinguish between the volume applied under
the shield as 'band area' (treated area) and the area of the field 'Field Area' see
below.
FIELD AREA
BAND AREA
The 'band area' (treated area) can be considered as a percentage of the 'field area'.
The percentage relationship is the same for a single band width to one row width
where the rows are regularly spaced, or the average band width to the average row
width where rows are irregular.
ROW WIDTH
or average
row width
BAND WIDTH
or average
band width
(treated width)
Example: If spraying two bands each 0.4 m wide using two Undavina 400 units
between trees planted at 2.0 m distance then only 40% of the area is treated
(2 x 0.4 / 2.0 x 100 = 40%)
Using the example above and spraying rate of 40 litres per hectare. Reduce the
application rate (40 l/ha) by the same ration as the band width to row width (40%) to
calculate the actual application rate per hectare.
40 l / 0.4 (or 40%) = 16 litres of spray mix per field hectare.
Micron Sprayers Ltd. Spraydome/Undavina and Spraymiser
Calibration
a+b
a b