Yield data is collected from most modern harvesters. This data can be used to analyse a crops individual performance, compare with previous crops and combined with several years of data to generate statistical maps. In this post I show you three individual years yield maps for one paddock: wheat, sorghum and chickpeas. Using this three seasons of data I then ‘stack’ them on top of each other to produce maximum, minimum and mean. These statistics can then be used as a starting point to develop paddock zones to apply variable rate fertiliser or seed.