What I seen work good this year was 100 lbs of NH3 in fall, with P, K, S and Zinc. Then rest of N in spring with Urea. Usually 150lbs of AMS. Going to try P, K, S and Zinc in fall and some more AMS with all N in spring, for next year. Probably do 200 to 230lbs of AMS total.
I think the AMS is very important.I dont use any starter, dont see the need.