Used in combination with other tools such as QGIS and Avenza, exports from Overyield can simplify data collection for on-farm research.

You can download these other tools here.

• QGIS download

  • Primarily used to convert OY layers into other formats.
  • Within an R&D context, can also be used to randomly extract points or rows for data collection.

• Avenza download

  • Native iOS or Android app.
  • Used to collect data in the field.
  • Accepts Overyield-generated layers (note: must be in KML format.)

  Note - there are likely many other strategies for collecting crop data for perennial and tree-based agriculture systems, but these are some of the ways we’ve collected data in our work.

Example of Overyield exports uploaded to Avenza, where data can be collected on a tree-by-tree, field-by-field, plot-by-plot, or layer-by-layer basis.

Step 1: Creating and Uploading Geo-Referenced PDF’s to Avenza

Our team often uses Geo-PDF’s as the basemaps used in Avenza.

• You can watch our video walkthrough — Creating Geo Referenced PDfs — to learn how to create these basemaps.

Once created as a Georeferenced PDF, the basemap can be imported to Avenza.

To import a new map:

1. Click the + icon in the top right corner.
2. Click Import Map to select the GeoPDF saved to a storage location on your device or in the cloud.

Step 2: Preparing Overyield Exports

• Our team uses QGIS to convert SHP exports from Overyield into KML format.
• Beyond conversion into KML format, QGIS is also a helpful tool to process layers for research purposes (e.g. merging layers with similar experimental treatments applied to them, randomly extracting a subset of the data for data collection).
• The following video walks through some of these use cases:

https://www.loom.com/share/0e32ad077c314342965bd1a861491cb5

Step 3: Importing Layers to your Avenza Basemap and Collecting Data

Once your processed layers are stored to the cloud or on your phone as KML files, you can bring them into Avenza for data collection on the farm.

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