On Tue, 08 Jul 2003 23:32:11 -0400, Noydb
wrote:

Mix 1 tablespoon calcium cloride (road salt) with 1 pint water
and pout that around the base of the plant. Good for preventing
blossom end rot in tomatoes.

---pete---

Are you certain you didn't have Epsom Salts in mind?
------
This tip comes from the book by Dick Raymond,
The Love of Gardening, page 294.
---pete---