I did amend that soil a lot. We built the frames for new raised beds 2 years ago in fall. Added a few inches of "topsoil", i.e. crappy clay. I added my homemade compost, lots of grass clippings and fall leaves, straw, whatever, ala lasagna garden. That once nasty clay soil was awesome.
I always have added compost to my tomato beds, almost every year. Again last fall I added grass clippings and lots of leaves and some straw. It will shrink a lot by planting time and I'll add more. I just don't think you can ever have enough organic matter. Oh yeah, and I keep it pretty organic. I don't use chemical ferts, only more earth friendly ones, and I don't generally use pesticides.
Karen
