What are you using to get Potash and Phosphorus in an Organic Program

[gr8pyrs]

I've started to use a cornmeal and corn gluten meal program for fert and pre-em control.

What are you guys using to get the potash and phosphorus in the turf. Preferably something from a local feed mill or farm supply house.

I am in the process of having the Ag Extension run a soils tests so I'm not sure what I might need yet but just want to be prepared.

Also are there any adverse effects of using dolomitic lime in a program of this type?
I mulch a lot of leaves and have used this in the past to control the acid (as well as fleas). Our soils here are acidic to start and with all the leaves it builds up.

Thanks