News Feed › Forums › Soil Health › Applying Calcium and/or Calcium Phosphate during flowering › Reply To: Applying Calcium and/or Calcium Phosphate during flowering
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I use chelated calcium foliar sprayed at bloom all the time and it works well. Calcium phosphate is an unavailable mineral rock and won’t be plant available as a foliar unless chemically separated and then chelated to prevent reassociation as a rock.