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  1. Humic substance - Wikipedia

    Humic substances (HS) are relatively recalcitrant colored organic compounds naturally formed during long-term decomposition and transformation of biomass residues. The color of humic …

  2. Humic Acid: The Science of Humus and How it Benefits Soil

    Humic acid is a group of molecules that bind to, and help plant roots receive, water and nutrients. High humic acid levels can dramatically increase yields. Humic acid deficiency can prevent …

  3. What Are Humic Substances and Their Benefits? - Biology Insights

    Humic substances are a diverse group of naturally occurring organic compounds found widely in soil, water, and sediments. These complex materials are formed through the natural processes …

  4. Humic Acid: Overview, Uses, Side Effects, Precautions ... - WebMD

    People sometimes use humic acid to stimulate the immune system, for infections, and many other purposes, but there is no good scientific evidence to support any use.

  5. The Complete Farmer's Guide to Humics, Humic Acid, and Fulvic …

    Humic substances are the organic residues of plant and animal matter that decompose over millennia, forming stable organic compounds known as humus. The major components of …

  6. Humic acid | Soil, Fertilizer, Organic | Britannica

    Its structure is unlike that of proteins or carbohydrates, the two most common organic polymers found in biological material; instead, humic acid can be characterized as a loose assembly of …

  7. HUMIC Definition & Meaning - Merriam-Webster

    The meaning of HUMIC is of, relating to, or derived at least in part from humus.

  8. IHSS | International Humic Substances Society

    What are Humic Substances? Humic substances (HS) are complex and heterogeneous mixtures of polydispersed materials formed in soils, sediments, and natural waters by biochemical and …

  9. Humic substances – Knowledge and References – Taylor & Francis

    Humic substances are a complex and ill-defined composite of organic compounds that are formed during the decay of plant residues. They are influenced by biological and chemical factors …

  10. Humic Substances as a Versatile Intermediary - PMC

    Humic substances are organic ubiquitous components arising in the process of chemical and microbiological oxidation, generally called humification, the second largest process of the …