- Humic substance - Wikipedia
Humic substances (HS) are colored relatively recalcitrant organic compounds naturally formed during long-term decomposition and transformation of biomass residues The color of humic substances varies from bright yellow to light or dark brown leading to black
- 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 farmers and gardeners from growing crops with optimum nutrition
- The Complete Farmers 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 humus are humic acids, fulvic acids, and humin, each playing a vital role in soil chemistry and biology
- What are humic substances | IHSS
Humic substances are complex and heterogeneous mixtures of polydispersed materials formed by biochemical and chemical reactions during the decay and transformation of plant and microbial remains (a process called humification)
- Humic substances: Structure, function and benefits for . . .
Humic substances (HSs), derived from degraded plant remains and found ubiquitously in nature, are an important source of organic matter The application of HSs to soil enhances essential nutrient supply and assimilation of atmospheric CO 2 due to increasing biomass yield
- Humic acid | Soil, Fertilizer, Organic | Britannica
Humic acid, one of two classes of natural acidic organic polymer that can be extracted from humus found in soil, sediment, or aquatic environments The process by which humic acid forms in humus is not well understood, but the consensus is that it accumulates gradually as a residue from the
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