News Feed Forums Soil Health Applying Calcium and/or Calcium Phosphate during flowering Reply To: Applying Calcium and/or Calcium Phosphate during flowering

  • Andrew Couzens

    Member
    February 22, 2021 at 12:29 pm
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    Using brown rice or apple cider vinegar which contain 5-6% acetic acid, mild but effective. Generally letting it sit for 7 days to allow the most reaction possible. I imagine using concentrated acetic acid might speed up the process or possibly produce a higher concentraiton.