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Rate Increment
—This input is dependent on your controller and N-product; it can vary per application.
Algorithm implication: The Rate Increment will define the step size for the variable rate prescribed by the N
Algorithm. The system will not change the application rate unless OptRx prescribes a new target that is greater than
the Rate Increment. If your system is frequently changing target rates and the flow controller has a hard time
responding appropriately, increase this setting.
Economic Optimal Rate
—This input is dependent on the crop per field.
Algorithm implication: Economic Optimum N Rate (ENOR) as prescribed by regional agronomists or universities.
This value will equal the total amount of nitrogen that is recommended for the crop over its entire life cycle. This will
be a user defined value.
N Credits
—This input should be reviewed and set for each application.
Algorithm implication: The amount of N credits from previous year’s crops or manure applications. This will be a user
defined value.
Pre-Topdress Fertilizer
—This input should be reviewed and set for each application.
Algorithm implication: The amount of fertilizer that has already been applied. This includes pre-plant fertilizer,
planting fertilizer and post-planting fertilizer that has been applied before topdressing. This will be a user defined
value.
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NOTE!: The exact values for these inputs are up to the grower, ideally after consulting with an agronomist. Ag Leader
Technology does not provide agronomic advice.
Europe Settings
Planned Rate
—This input should be reviewed and set for each application.
Algorithm implication: The planned rate will be the average rate that the OptRx N-algorithm will prescribe,
considering that the reference strip reflects the field average and that the Minimum and Maximum Rate have an
equal offset from the Planned Rate. The Planned Rate should be set to the intended flat rate to apply if the OptRx N-
Algorithm was not used.
Minimum Rate
—This input should be reviewed and set for each application.
Algorithm implication: For the Planned Rate to reflect the average OptRx rate prescription, the difference between
the Minimum Rate and Planned Rate should be the same as the difference between the Maximum Rate and Planned
Rate. The Minimum Rate is the lowest amount of nitrogen operator wants applied. If OptRx prescribes a lower rate
system will default to the Minimum Rate.
Maximum Rate
—This input should be reviewed and set for each application.
Algorithm implication: For the Planned Rate to reflect the average OptRx rate prescription, the difference between
the Maximum Rate and Planned Rate should be the same as the difference between the Minimum Rate and Planned
Rate. The Maximum Rate should be set to the highest amount of nitrogen operator wants applied. If OptRx prescribes
a higher rate system will default to the Maximum Rate.
Rate Increment
—This input is dependent on your controller and N-product; it can vary per application.
Algorithm implication: The Rate Increment will define the step size for the variable rate prescribed by the N
Algorithm. The system will not change the application rate unless OptRx prescribes a new target that is greater than
the Rate Increment. If your system is frequently changing target rates and the flow controller has a hard time
responding appropriately, increase this setting.
Managed Rate
—This input is dependent on the crop; it should not be changed during the season.
Algorithm implication: The Managed Rate reflects the total amount of nitrogen the crop will uptake throughout a
single season. A higher Managed Rate will increase the algorithms aggressiveness, the target rate will show more
variation.
Europe Settings
