4.2. CropSpec prescription types
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4.2. CropSpec prescription types
CropSpec prescriptions can control the fertilizer application rate
according to the readings gathered by the sensors. There are four
types of CropSpec prescriptions available:
Note: There are also three prescription types that are specific to
Japan. Refer to Configuring Japanese wheat prescription types, page
34.
4.2.1. On/Off
On/Off prescription type provides elementary rate control that can
start or stop the fertilizer application. However, this prescription type
can also be used to assign maximum and minimum values for the
application rate.
4.2.2. Two Point
Two Point prescription type uses two average CropSpec readings
(from parts of the field where crop health is good and from parts of
the field where crop health is poor) to define the application rate
between the two levels of biomass.
4.2.3. One Point plus Slope
One Point plus Slope prescription type uses an application rate that
corresponds with the average CropSpec value for the field to vary the
applied rate as the CropSpec value increases and decreases. Enter a +/-
slope value so that as the CropSpec reading moves above or below
the average CropSpec reading, the application rate will adjust
according to the slope value.
4.2.4. Target Rate
This prescription type is the same as One Point plus Slope, except
that the application rate is linked to the live average CropSpec
reading rather than a pre-entered, fixed average. As the current
CropSpec reading changes, the application rate is adjusted.
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