
Yara N-Sensor V3.10
Operation Manual
The main menu bar changes and a moving green indicator appears. Calculated appli-
cation rates are continuously sent to the sprayer controller and all relevant data is
logged to the log-file that is linked to the selected task. The main menu bar displays the
following options:
Uniform:
Pressing the
Uniform
button changes the application rate to the maximum
rate that was set in the
Agronomic calibration
menu. In this case, the application
rate is flashing and the “uniform” icon is displayed to remind that the rates are not
based on the N-Sensor reading.
+/-:
This button changes the menu to allow for manual application rate changes in
steps of +10% and –10%. If rates are manually changed, the change factor is dis-
played below the indicator bar.
Marker:
If this button is pressed the menu changes to the marker menu, which allows
to set and delete three markers independently from each other. If markers are set,
the respective area will be marked in the log data output and in the map printout,
respectively. This option may be helpful to identify specific areas within the field
during potato haulm killing.
Usually, the system should be activated at the beginning of the field and should con-
tinue to operate throughout the whole field. The
Stop
button is only pressed to pause
operation within the field, i. e. in order to refill the sprayer. In the headlands, the N-
Sensor keeps running. The sprayer is operated as without the N-Sensor connected,
i. e. it is turned on and off in the headlands as usual.
When the field is completed, press the
Stop
button to deactivate the system.
You may now continue with another task on another field as described in
section 4 or remove the data card and process the log-file(s).
5.4.3 Background
The dosing algorithms in the
MLHD PHK
module were developed and tested by Plant
Research International, part of Wageningen University and Research Centre, in the pe-
riod between 1999 and 2004 (see ‘An innovative dosing system for potato haulm killing
herbicides’ in XII International conference on weed biology, Dijon, 31-8 - 2-9 2004 :
Last revised: 28.01.2009 14:39
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