Ag PhD Episode #1191 for the week of 1-31-21. Brian and Darren Hefty explain what Mulder's Chart is, and how you can use it to make fertilizer decisions for your farm.
Why know this? Well if you are having a a problem with a particular nutrient, it benefits you to know how that nutrient reacts to other nutrients. A deficiency is often not because it is void from the soil but because it is locked up as a result of higher loads of another. This chart is just a tool for the belt and not a guide.