Fulvic acid Biostimulant for plants and soil.
Liquid and dry powder water soluble fulvic acid concentrates
Fulvic Acid Fraction - the portion of humic substances that are soluble in both alkali and acid aqueous solutions.
Hydrophobic Fulvic Acids - are the portions of humic substances that are soluble in both alkali and acidic aqueous solutions that are separated from non-humic aqueous substances in the fulvic acid fraction by selective adsorption onto a nonionic macroporous acrylic ester resin of moderate polarity i.e. DAX-8 resin, at low pH.
The American Association Of Plant Food Chemist Officials (AAPFCO) has approved a method to determine the fulvic acid fraction of plant and soil amendments for the purposes of labeling.
"The analytical procedure developed jointly by the Humic Products Trade Association (HPTA) and the International Humic Substances Society (IHSS) has been approved by AAPFCO as the only officially recognized procedure for the analysis of humic acids and a specific category of fulvic acids. The procedure has been published in the Journal of AOAC International, a peer reviewed scientific journal, and is currently being reviewed by the International Organization for Standardization (ISO) as a possible international analytical standard." Lawrence Mayhew
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