Its not normally that complicated, but playing with notill COC with an all dry program, and now adding in the ability to fertigate on some farms, it adds up quick.  Then this spring was so windy I didn't get some AMS topdressed, so went to ATS and 32% applied with sprayer and drops.  Used elemental and AMS on fall strips and a little this spring with dry blends.  Part of having so many different programs is trying to find what works best.  With less tillage I think corn needs more sulfur then "normal", I always apply sulfur with Nitrogen, so some fields get 2 apps, some got 5 apps this year.

Plain and simple if you add 50-75 lbs of AMS with your dry up front, and then add 5 gallons of ATS into your sidedress pass you will be sitting good.  If you have some higher pH fields or going for huge yields you can up your dry AMS a little in the spring