The benefits and features of humic acids are for the most part, well defined. However, their performance characteristics are highly affected by the source material used and the extraction process used to separate the soluble humic and fulvic acids from the parent material.
It should be noted that unless HAs are soluble, they are inactive in soils and unavailable to plants. So regardless of the stated source material and humic acid content, the key consideration is the percent of soluble humic acids released from the soil conditioner in the soil. Moreover, only a small fraction of water soluble lower molecular weight components in humic substances can be taken up by plants.
Source of Humic Acid
The source material for humic acids is quite important. While a number of sources can be considered as raw material for the manufacture of HA-based supplements for container mixes, only Leonardite containing the highest percentages of humic acid is used in the production of NuHumic Humic Acid Supplement. Leonardite (an oxidized lignite coal) containing up to 85% humic acids is used in the manufacture of NuHumic. It is considered by industry experts to be the premier quality material for humic acid extraction.
Percent Humic Acid Released in Water
A patented humic acid extraction process is used to provide NuHumic with the highest percent of soluble humic acids fractions released from the granular material.
Again, it should be noted that unless HAs are soluble, they are inactive in soils and unavailable to plants. Since specific standards for products containing humic substances are not yet universally established for registration purposes, growers should feel free to investigate and ask questions regarding any product’s source materials and percent of humic acids released in the substrate before making a decision.
NuHumic does not rely on the uncertainties associated with the need for precursors, biochemical reactions and enhanced microbial populations to solubilize its humic acids.