腐植酸 （Humic acid, 缩写：HA），又称 胡敏酸，是一种天然 有机高分子化合物，是 腐殖质 的主要组成部分 [1]。 腐植酸不是一个单一的 酸，而是一个复杂的含有羧基、酚羟基等官能团的混 …

"Humic substances" is an umbrella term covering humic acid, fulvic acid and humin, which differ in solubility. By definition, humic acid (HA) is soluble in water at neutral and alkaline pH, but …

Humic acid is kind of like a cross between humin and fulvic acid. It provides some benefits to improve soil structure and hold water, though not as well as humin. It also helps plants uptake …

May 1, 2016 · Humic acids (HAs) are macromolecules that comprise humic substances (HS), which are organic matter distributed in terrestrial soil, natural water, and sediment. HAs differ …

胡敏酸 [1] 是指土壤中只溶于稀碱而不溶于稀酸的棕至暗褐色的腐殖酸。 含碳和氮的数量稍高于 富啡酸，而氢、氧则相对较低。 胡敏酸即“腐殖酸”。 土壤中只溶于稀碱而不溶于稀酸的棕至暗 …

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 …

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 …

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 …

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 …

Humic acid is a complex organic substance that occurs naturally in soil, peat, and coal. It is formed through the decomposition of plant and animal matter over thousands of years. Humic …