Strip tilling will let you reduce your P & K  fertilizer rates by 1/3 to 1/2 depending on your soils. Confirmed by U of MN in southern MN ridgetill years ago. Go in with reduced P & K in early spring with a coulter type unit. If you can get it in early enough you can put fulll rate (0.8-1.0 lb of N per bu expected yield) along with reduced rate P & K in the spring strip or if stripping closer to planting put down 1/3 of N (0.3 lb N per bu) with the reduced P & K and side dress the rest of N later. I've seen it work nicely.

Banding fertilizer is the way to go to save $$ without hurting yields, just less waste of fertilizer and less N in your family water well..

Be careful with fall strips unless you are on very flat ground. They will erode on about any slope.