The GeoNave system with ISO 31 spraying licenses allows configuring up to 20 parameter structures called Spraying Works. Each work is related to a spraying nozzle model, and informs the system of nozzle flow and pressure data, as well as information on target rates that will be used in the application when this work is selected.
Initially the system suggests in the first 11 list positions the data of most used nozzle models for operations with boom spraying implement, as shown in the following images. The remaining 9 positions are initially empty.
Selecting a spraying work, Simple list screen presents in its footer an information board with spraying work parameters.
Pressing the edit button 
, Double List screen appears as shown in the image below, allowing the user to configure each of the spraying works parameters individually.
Work Name
Work name is usually inserted with text that identifies the used nozzle model. For example: Fungicide nozzle; Blue Cone nozzle; etc.
Nozzle Flow
Nozzle flow nominal value, normally set by nozzle manufacturer for different pressures. The flow rate for the operation used pressure must be entered in this parameter.
Nozzle Pressure
Nozzle pressure nominal value, normally set by nozzle manufacturer. The approximate pressure to be used in the operation must be entered in this parameter.
Target Rate 1
Represents the application target rate value selectable on the navigation screen by pressing fixed spraying rate button 1 
.
Target Rate 2
Represents the application target rate value selectable on the navigation screen by pressing fixed spraying rate button 2 
.
Rate Type
Rate Type that will be used in spraying operation – Fixed or Variable. If it is configured as a Fixed rate, the two target rate values 1 and 2 will be selectable by the user on navigation screen. If rate type is Variable, the spraying work edit menu will include two new lines: Input Maps and Map Parameter, as shown in the following image.
Input Maps
Selecting Input Maps item and pressing the edit button , File List of variable rate Shapefile maps present in the internal memory for user selection will be displayed, as shown in the image below.
Selecting a map and pressing view button 
, the list of Shapefile map parameters is loaded so that the user can select the item corresponding to the rate of each map polygon. The image below shows the Input Map Parameters list.
When selecting the parameter and pressing the forward button 
, after data loading, the map screen will be displayed with areas in different colors, representing each application rate range in L/ha, as shown in the following image.
If it is not the correct map, the user must press the return button 
and select another map. If the map is the desired one, the confirm button 
must be pressed, loading the map in the spraying work.
