One of the primary functions of Humic Acid is to improve soil health. Soil is the foundation of all terrestrial ecosystems, and healthy soil is essential for plant growth, nutrient cycling, and water retention. Humic acid plays a key role in soil health by promoting the formation of stable soil aggregates, which improve soil structure and porosity. This allows for better air and water movement within the soil, which in turn promotes healthy root growth and nutrient uptake by plants.

Humic Acid also helps to increase the cation exchange capacity (CEC) of soil. CEC refers to the soil's ability to hold onto and release positively charged ions such as calcium, magnesium, and potassium. When soil has a high CEC, it can hold onto these essential nutrients for longer periods of time, making them more available to plants. Humic acid contains many negatively charged functional groups, which can bind to positively charged ions and increase the CEC of soil. This can be especially important in nutrient-poor soils, where plants may struggle to obtain essential nutrients.

Read More- https://cmiblogdailydose.blogspot.com/2023/05/humic-acid-can-improve-health-of-soil.html