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

  • Tom Zogas

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    February 20, 2021 at 2:38 pm
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    Yes! I’ve been wondering about vinegar extractions! I just started experimenting with it.

    My process has been to cook the material, pulverize it in a blender with apple cider vinegar, and top off the container with more vinegar. Definitely fun to make! I’ve noticed that if I really really cook the materials (>900F maybe), I don’t see nearly as much of a reaction.

    Andrew, do you use the WCA in a foliar spray? Have you ever tested it’s mineral content? Do you think it’s an effective Ca fertilizer?

    Here’s a cool paper about using microbes to solubilize the Ca + P in bones as a way to add value to a waste product.

    Tables from Nigel Palmer’s book, The Regenerative Grower’s Guide to Garden Amendments