Dirt for a garden
Hello everyone. I am planning to start a vegetable garden this spring in NE Oklahoma. Here's the situation. We have an area that had a playset at one time, it currently has 1/4" river rock in it. The area is 20'w x 50'L x 1'D. So I'm working on getting rid of the river rock, then I guess the plan it to backfill with good top soil, which will be pricey. My question is should I put something in besides dirt, like manure or something. I can get some horse manure mixed with straw, would it be good to put a few inches of that before the dirt? Any guidance would be appreciated.