Delivery system and liquid control 10 GreenSeeker setup
Select a nozzle
It is usually best to match nozzles to the lower mid-range of the typical rates shown on the
application graph. Ultimately, it is up to the grower or crop consultant to determine the minimum
or maximum rates and nozzles which are most appropriate.
If most of your NDVI readings (in the area of the field, not in the NRS) are around 0.53, and your
review the application graph shows at 0.53 NDVI you should be applying 15GPA, then you should
choose a nozzle that will have the ability to change rates above and below this NDVI reading.
You might choose a nozzle that puts out 12.5GPA at its lowest pressure (such as 20psi) and 21GPA at
its highest pressure (such as 60psi). Since the penalty to under-fertilize (harm yield) is usually greater
than to over-fertilize (waste fertilizer), it may be best to choose a strategy similar to the one shown
here. You will need to modify your values to fit your circumstances and meet the local field and
delivery system conditions.
248 FM-1000 Integrated Display User Guide Version 9.25, Revision B
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