From what I have found, Magnesium is present in many places in KNF. To demonstrate with two examples
KNF Food – Mg will be present in the fermented plant juice, and even more so if it is made from certain fruits. Plants known to contain high concentrations of Mg are:
- All leafy greens
- Sweet Potatoes
- Winter Squash
KNF Minerals – Magnesium is present in seawater in amounts of about 1300 ppm. After sodium, it is the most commonly found cation in oceans. Rivers contains approximately 4 ppm of magnesium, marine algae 6000-20,000 ppm, and oysters 1200 ppm
I am sure there are more places where magnesium can be solubilized for plant to uptake in KNF naturally from a well balanced soil with indigenous micro organisms.
Thank you for your answer, so would it be possible to make wca from oyster shells?
yes, but to answer you more completely, this can be asked as another question instead of a comment. makes it easier for other folks to find the same answer :)
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