Creating a variable rate prescription map for Seeding

Guidelines for creating a Variable rate prescription map in the CultiWise application.

Terézia Orviská

Last Update setahun yang lalu

This guide explains how to create a Variable Rate Prescription Map for Seeding in the CultiWise application. It covers the steps to request, edit, and download the prescription map. By assigning different dose rates to specific field zones, this method optimizes seed distribution, increases efficiency, and enhances overall crop performance.

Note: This prescription map is generated using yield data from the past 6–8 years, reflecting long-term productivity trends.


Requesting a variable rate prescription map for Seeding

To request a seeding prescription map, click on 'CREATE PRESCRIPTION' and select 'Seeding'.

A pop-up window will appear where you can enter the required information. You can request a seeding prescription map for multiple fields at once.

Field Selection
  • Select the fields within a specific farm. You can choose multiple fields from the same farm.

Select no. of zones

Choose the number of zones for classification:
  • 3 zonesClassification based on yield potential values, divided into three categories: <95, 95–105, >105.

  • 5 zonesClassification into zones with intervals of 5. More than five zones may be present depending on field variability and yield potential.
Select machine type
  • Specify the type of machine that will be used for application.

Notes
  • Provide additional details in the Notes field, including:
    • Crop type
    • Hybrid
    • Standard seeding rate
    • Any additional requirements or considerations

Warning:

  • Prescription maps are most effective for fields larger than 5 hectares. For smaller fields, the data may be less reliable.
  • If high-resolution data is required for smaller fields, consider using Planet data (a paid feature) for better accuracy.

Note: Standard delivery time is 1-2 days due to manual intervention.


Viewing the seeding prescription map

Once processing is complete, the prescription map will be available in the field view on the left panel.

Actions available for the layer

Visibility
  • Toggle the visibility of uploaded yield potential maps by clicking the circular icon next to the layer name.
  • Selecting or deselecting this icon enables or disables the display of the corresponding map.

Layer details

  • Click the arrow icon next to the layer name to view a detailed information containing table with zone classifications and dose rates.
Editing layers
  • Rename a layer by clicking on its name and entering a new one.
  • Click the pencil icon next to the layer name to open the Edit Layer window, where you can modify dose rates for specific zones.

Delete layer

  • If needed, you can delete a layer by clicking the delete icon.

Order of layers

  • Reorder layers using the three-line (hamburger) icon next to each layer. Drag and drop to adjust the layer's position and visibility priority.

Prescription map information

The variable rate seeding map divides the field into 3–10 zones based on productivity trends from the past 6–8 years. Each zone is assigned a predefined seeding rate.

Rate Change 
  • You can adjust dose rates for each zone manually.
  • Click the pencil icon next to the layer name and navigate to the 'Rate Change' section in the Edit Layer window.


Modifying rates
Standard Rate 

This field is displayed at the top of the section, showing the default rate used for broadcast application in kg/ha

  • Here, you can enter the dose rate you typically use for broadcast application. This value serves as a reference for calculating savings.


Table with dose rates

For each zone table display:

  • Yield Potential [%] for the zone
  • Rate [kg/ha] set for the zone
  • Area [ha] of zone
  • Volume [kg] of used product

You can manually adjust the Rate [kg/ha] for each zone by modifying the corresponding values in the input fields.
  • Custom rates automatically update volume savings calculations compared to the Standard Rate.
Monitoring Prescription data and Savings

At the bottom of the section, you can view:

  • Total Prescriptions: The overall amount of product applied.
  • Volume Savings (%): Showing the potential reduction in input usage compared to the standard rate.

Saving Changes
  • After making adjustments, click the 'SAVE' button to apply changes.
Note: If needed, after saving changes, users can use the Revert Changes button to restore the map to its original state.

Exporting a Prescription Map

Once the prescription map has been created, it can be exported for use with compatible machinery and software. 

  • To export the prescription map, click 'EXPORT AS .SHP' below the map legend.
  • This will generate a shapefile compatible with agricultural machinery and software.

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