If I could add to this, make sure you tell them what you want to grow, and what you are growing it for and they can give you a better recommendationYou should have someone in your area that will do a soil test. Usaully cheaper if you collect the soil samples. The soil test will tell you what your soil needs. Check to see if you have a local Farm Services Agency.
I can't get through to them. If anyone has a contact it would be appreciated.i bet tecomate could answer it best.