Using Field Analyzer to Compare Yield and Application Maps
Learn how to review yield data, compare field layers, and use data analysis to guide better input decisions.
View the Yield Map
Open your field in Field Analyzer and select the Harvest map. From there, choose the Yield layer to review overall yield performance across the field. The color display helps you quickly spot areas of stronger and weaker yield, and the field summary shows totals at the bottom.
Compare Two Maps
Use the Compare button when you want to look at two layers side by side. A common example is comparing yield with an application map, such as a side-dress fertilizer pass and its as-applied rate. This side-by-side view helps you see where field performance and input placement line up.
Use Data Analysis
The Data Analysis button is where the real insight comes in. It summarizes the two selected maps relative to each other so you can look for trends or correlation between management decisions and yield response. In the example from the walkthrough, higher fertilizer rates generally aligned with higher yield, while lower rates aligned with lower yield, which suggested the prescription was matching field potential.
What the Results Mean
This kind of analysis does not prove that fertilizer alone caused the yield differences, because other factors like soil type, yield history, and elevation also affect performance. But it does help you see whether your inputs are being used efficiently and whether your prescription is fitting the field the way you intended. It can also show patterns across soil types or terrain, such as lower ground often yielding better than higher ground.
Other Layers to Review
You can compare more than just yield and fertilizer maps. Soil type maps can be compared with yield to see how performance changes across different soils, and elevation maps can help explain why some parts of the field produce better than others. Since elevation data is often captured during field recording, it can be a useful layer for understanding topography and yield variation.
Exit Compare Mode
When you are finished comparing maps, simply select the X to close the compare view and return to normal field analysis. This makes it easy to move between layers without losing your place in the field record.