Humic and Fulvic Acid Summary

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Property	Humic Acid	Fulvic Acid
Fungal food & stimulant	x
Bacterial food & stimulant		x
Chelator for metal trace elements		x
Best for foliar applied nutrients		x
High pH	x
Low pH		x
Product Compatibility (liquid formations)
Urea	x	x
Ammonium sulfate		x
MAP (mono-ammonium phosphate)		x
MKP (mono-potassium phosphate)		x
Potassium sulfate		x
Potassium nitrate		x
Magnesium sulfate		x
Magnesium nitrate		x
Calcium nitrate		x
Zinc sulfate		x
Copper sulfate		x
Iron sulfate		x
Manganese sulfate		x
Soluble Boron	x	x
Soluble kelp powders	x	x
Liquid kelp		x
Lime-Life Organic™, Gyp-Life Organic™, Phos-Life Organic™ etc.	x	x

 

Note: Fulvic acid has very little compatibility problems – the only ones we know of are some extra strong glyphosate formulations.