ORIGINAL: Rick James
If your ground isn't frozen, you can always disc now and spread lime now to let it really leech in. The best time to lime is always yesterday. Get a soil test done first, you can send it to Mossy Oak, or a local testing facility and find out what kind of fertilizer and lime you need.
They can be very rewarding, and they can be a lot of work and $$$. Check out the wildlife management forum here, as well as the qdma forums. QDMA has probably the best collection of info on this that I have found.
I'll move it because the guys in the WM forum are great.....
That being said, now is the time to start. Like RJ says, it's time to lime even if you can't disc. You want to lime in the fall to plant in the spring and lime in the spring to plant in the fall. It roughly takes 6 months to get the most of your lime so get the lime down as soon as you can. Okay, I'll move it now.