[MsCowpea]

Tim, you are right overfertilizing does contribute to BER. (see below)

But I was curious , do you add the 2 cups of dolomite as instructed by the Earthbox people per box if growing tomatoes?.


causes of BER
"The following conditions may increase BER: low soil Ca, high N rates, using ammoniacal sources of N, high concentrations of soluble K and Mg in the soil, high salinity, low humidity, inadequate soil moisture, excess soil moisture, damage to root system by nematodes, disease, mechanical means or heavy pruning. " (U of FL BER brochure)