I know from my gardening experiences that fulvic acids help transport the minerals for plant health. next yr I will make a conscious effort to increase the fulvic acid content in soil. I will use more vermicompost around my cabbages for sauerkraut which may make fulvic acid further available after fermentation.
"Vermicompost contains a great amount (up to 32% per dry weight) of humic substances — humic and fulvic acids, humate"