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6.3.
Calculate Required Flow Rate from the Sprayer
The required flow rate (in litres per minute) can be calculated using the following
formula:
Flow Rate (l/min) = Volume Application Rate (l/ha) x Speed (km/hr) xTrack Spacing (m)
Volume application rate is chosen so as to apply the recommended dose of active
ingredient (see FAO guidelines or manufacturer's label).
Example: if required volume application rate = 0.5 litres per ha (l/ha)
Vehicle speed
Track spacing
Then required flow rate from sprayer
The tables below give examples of combinations of flow rates and vehicle speeds
needed to apply volume application rates of 0.5 and 1.0 litre per hectare.
Fig. 7 – Incremental Spraying Technique
MICRON AU8115MS VEHICLE MOUNTED SPRAYER
600
= 10 kilometres per hour (km/hr)
= 50 metres (m)
= 0.5 x 10 x 50 = 0.42 litres/ min
600
= 420 ml/min
13
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