| http://www.w3.org/ns/prov#value | - Biochars, like humic substances, are effective acid-base buffers, they bind metals, molecules, ions and other biopolymers, they are redox-active, and they stick firmly to clays and minerals.That sounds like biochar, but is quoted from the preface to Humic Substances: Structures, Properties and Uses" (1998) ISBN: 0-85404-704-2The book begins with a quote from Fritz Frimmel:Humic Substances may
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