Well, from my perspective, going from your soil test of 2013 your soil pH of 7.8 is tad high and will not allow a whole lot of phosphorus to become available to your plants; perhaps that contributes to it building up in your soil. If your home pH test is accurate then you'll be on the right track, at a level when more major nutrients as well as trace/micronutrients will be available to plants. As for the ironite, I think you're going to get locked into weekly sprays for it to benefit your plants and deficit your pocketbook. But whatever works.... I really wonder if you'd be better off using "Cal-Mag" which would give you a decent amount of N, K, and a smaller amount of P, and being water soluble would more readily benefit your plants.
Shoe
