Top soil (Gardening)

My recommendations is see if you can get your hands on a small load of mud, enough to fill a truck bed. I would place on top and smooth out. Add 1/3 of manure. I try to get my hands on 2 year old manure that had decomposted. I also like to sprinkle some grass trimmings that are about a month old. That will give it some nitrogen. Mix it all together and you should be good to go on a garden. You can get soil samples and place in packets from the LSU to get tested. Think its around $30 per sample. If you do that, I'd get 3 samples from different areas of the bed.