So what is a yield map telling you? I was sitting in the combine staring at a August high resolution Mavrx image on a scouting app of a bean field and watching the correlation to what I was seeing right in front of me. I'm using this image for this example because it will correlate to the yield map and I have this map now. More on this image/yield correlation at a later time. So picture this image just without the yield numbers. And honestly a big part of variable rate management doesn't need yield numbers to increase field management. We just need to know that there are yield differences, where those yield differences are happening and what is causing those yield differences. Its easy to see the best and the worst spots on the map. If you were using just this map to base your variable rate decisons on would that be successful? The answer here is maybe. You could rewind this field 7-8 years and the best areas this year would be the worst. So what is happening this year?  Are the highest producing areas the best because of water holding or because of the extra nutrients from being lower producing years ago? The answer here is a little bit of each. Are the toughest areas from nutrient deficiency or salinity? In this case it is salinity. But I would never know these answers from just the yield map if I wasn't in this field multiple times a year. So when you are staring at a yield map we need to dissect what is leading to the good and the bad areas. Use a yield map as a scouting tool and then gather additional information from there. Group yield data with your zone map, EC data, elevation and soil sample data to complete the story of what is going on in your fields. One of these pieces of information may tell the entire story of what is happening. Other times a single piece of information may not solve much at all. That is why multiple layers are critical. If you don't have all these pieces of information use what you have and hit the field.