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

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 …

Sep 22, 2025 · Humic acid explained—what it is, evidence-backed benefits, smart dosing, timing with meds, and safety tips to choose quality products and avoid risks.

Nov 10, 2025 · Explore the definition, natural origins, and critical dual functions of humic substances in both soil ecology and human health.

Aug 1, 2025 · Humic acids are natural organic compounds found in soil and water, formed from the breakdown of organic matter. These complex molecules play a significant role in ecological systems, …

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 …

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 …

Apr 1, 2023 · 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 …

Humic substances are high-molecular-weight, heterogeneous organic compounds characterized by their dark color, ranging from yellow-brown to black, and their resistance to further microbial degradation.

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