I am looking for suggestions for soil building cover crops. . . .
The idea is to get something to start breaking
up the soil and allow other nutrients to reach deeper.
I think the cover crop process is too slow for such soil. On similar
soil in the Bay Area I had tree-trimming guys dump many truck loads
of chips. Also got all the grass clippings and leaves possible.
Turned adobe into good soil. Fruit trees did very well. To make a
good garden will take years.