Has anyone used this company for fulvic/humic acid, or their fish based ferts?
...
Whoever wrote the product descriptions on that web site is very confused about what they are selling.
1. Humic Acid is a category of substances, generally a collection of weak, highly complex carbon acids with varying solubility in water.
2. Fulvic Acid is a sub-category of Humic Acid: it describes those which are less complex, lower in carbon, and consequently water-soluble in both acidic and alkaline conditions.
3. Humic Acid (both soluble and insoluble) are not fertilizers, they are soil conditioners. They provide a source of carbon and more importantly, electrolytic action in soils.
4. For Hydroponics, you would like only the Fulvics unless you enjoy cleaning residue out of your system. For deep water culture, 1 ml per gallon is sufficient. It will serve only as a source of carbon. But wait a minute, isn't the whole point of your hydroponic setup to be soil-less?? With the introduction of carbon you get soil microbes! If that's what you want, its a whole lot cheaper to grow your plants in conventional soil.
5. When a modest amount is used in a soil mix, the feeder roots can detect mineral nutrients at a surprising distance and seek them out. Notice the word "modest". In for most soils, a wetting of the surface (not a soil drench) using a Humic that is low in Fulvic at the rate of 1 Tablespoon per gallon of water at most once per year is plenty. If you have serious carbon-deficient clay soils (my soil) then applying 3 times per year for 5 years will dramatically change the nature of the soil, provided you also cover the soil annually with a thick layer of mulch.
