The Basic Humic Acid Products
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چکیده
Over at least twelve years of actual field experience with an ample variety of humic acid formulations (some of them developed many years before) have given us a singular degree of expertise in Latin America and a few other markets. Among other things, we have learned to distinguish between humic acids of high biological value, and humic substances of little biological activity. We have found cases where the difference in biological activity was as much as ten to one, despite the absence of significant differences in the chemical analysis.
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