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Spraying should be done in conjunction with an agronomist
/ spray manager / someone skilled in the art of spraying.
The best setup might vary significantly from crop to crop,
season to season etc.
SPRAYWISE
It’s highly recommended that all operators of this sprayer
and spray program managers should be fully conversant
with the information supplied in the
Nufarm SprayWise
Horticultural Application Handbook
(refer photo)
before undertaking spray operations.
The book includes chapters discussing re;
• Droplet Size
• Nozzle Types
• Dilute Spraying
• Concentrate Spraying
• Coverage & Assessment
• Selecting Nozzles
• Drift
• Weather
• Adjuvants
• Formulations & Mixing Order
• Cleaning
• Calibration
• Record Keeping
• And more
This book is supplied with every Smart Sprayer, and is
available from Croplands dealers, under the part number:
SPRAYWISEHK at a very reasonable price.
CALIBRATION
Applying the correct amount of chemical to a crop is only
possible if
the sprayer is calibrated, operated and
maintained correctly.
The variables of spray application (distance, time, working
width, liquid and chemical volumes) must be measured and
controlled accurately to ensure chemicals are applied at
the correct rate.
Proper calibration involves setting up the sprayer (nozzle
selection, pressure, speed), calculating chemical and
water rates and measuring the performance of the sprayer
itself. Only then can you be totally confident in applying
chemical correctly.
Fully Automatic Spray Controller (Fusion)
The Fusion fully automatic spray controller maintains the
application rate (as set by the operator) when operated in
the Auto position.
The controller monitors speed of travel (speed sensor)
and flow rate (flow meter) and automatically adjusts flow
rate (via a servo valve) to maintain correct application
rate irrespective of speed variations within the limits of the
nozzles used.
IMPORTANT:
• It should be remembered that the spray controller does
not eliminate the necessity to measure and check the
accuracy of nozzle spray patterns and outputs. These
must be checked regularly to ensure correct and uniform
application rates because nozzles wear with use.
SECTION 7
SPRAYING INFORMATION
