BER (blossom end rot) - conflicting information
According to Dr. Carolyn Male, university studies have shown that adding lime, eggshells, Tums, and especially calcium chloride sprays, have no effect at all on BER. The physiological condition - unless the plants are in highly acidic soils - is not affected by our attempts to 'cure' it via chemicals.
The FAQ on the issue from Ohio State Univ. also more or less backs this up:
However various suggestions on GardenWeb and even a FAQ here advocate adding various types of calcium-rich materials to the tomato garden to "treat" it.
THEN AGAIN, this page from a noted school for agriculture, Clemson Univ., states:
So - which do we believe? Carolyn, are you out there?