Oyster shell in the Garden?
I give my chickens oyster shell - recommended for their digestion aids (no teeth). It is supposedly rich in calcium also. When I planted my Bibb lettuce seeds, I sprinkled some shell over the newly planted beds. My thinking is that it would act like diatomaceous earth, and provide some calcium to the soil.
Perhaps it might aid in preventing blossom end rot, but that is just a wild guess. I did seem to have better success with the lettuce though, and perhaps it deterred the pill and sow bugs because of their sharp edges.
Anyone else use it?