If I were working with that soil, I would give up gardening!
But I have a plan.
It will be more expensive in the beginning but so worth it in the end!
Make a raised bed and buy some soil.
I use 8x8x16" concrete blocks, I buy them off Craig's list for 50 cents to a dollar.
I make my beds either 16' or 32'.
16' is 12 blocks on each side and four blocks on the ends, two rows high = 64 blocks.
32' is 24 blocks on each side and 4 blocks on the ends, two rows high = 104 blocks.
You can make the rows any length but I would keep them 4 blocks wide, any wider and you can't reach across, any narrower and you can't get two rows of larger plants in your beds, like peppers and eggplant.
Also stagger the blocks on first and second row.
Now for the hard part, see if there is a composting place in your area.
Mine is St louis compost, they sell mulch to top soil to garden blends to cow manure compost. I buy the Garden mix. St. Louis Composting, Enriching the Soil - Naturally - Since 1992. 636-861-3344
Another place to try is a material supply co. Kirkwood Material Supply, Inc.
I also add some bagged rice hulls and bagged cotton burr compost to the soil to help in aeration of the soil.
every year I add a little compost to the beds to keep them from compacting. The beds do need a bit more water and a bit more fertilizer than in ground beds. But you can get drip irrigation and be very water conscientious.
But anyway I would fill the beds with bought soil, If you get soil from a composting place, there are no weed seeds and the ph has already been checked, the sides of the beds are great to sit on when you need to weed or plant.
I love mine! DSC01714.jpg DSC01712.jpg