How Does Humic Acid Effect Microbial Activity and What is its Role?

The activities of beneficial soil microbes are crucial for the sustainability of any soil and plant growth.

Humic acid stimulates microbial activity by providing the indigenous microbes with a carbon source for food, thus encouraging their growth and activity.

Soil microbes are responsible for solubilizing vital nutrients such as phosphorus that can then be absorbed by the humic acid and in turn made available to the plant.

Additionally, microbes are responsible for the continued development of humus in the soil as it continues to break down not fully decomposed organic matter. This in-situ production of humus continues to naturally add to the humic acid base and its benefits.

As all know humic substance is main fraction of soil organic matter,is results of humification of decaying plants body and leaves,humification is process of bioactivity of microorganism.

Main organism are protozoa, fungi, bacteria, arthropods, and beneficial nematodes,their working are decompose dead leaves and plants,extract nutrients and carbon,provide plants microelement like NPK in the form of plants usable.Thus microorganism is important to the soil fertility.

There is some test report in northeast China showed that more OM content will find more microorganism biomass.

In the present time a lot farming area using chemical fertilizer,they need to be converted into the form of plants usable, during the process they will interrupt the structure of soil organic matter,then the soil organic matter is gradually going less.In return the soil microorganism is relatively decreased ,as their live condition is changed.

Why Use Humic Acid?

Today, there is a recognized and increasing use of humic acids for their beneficial impact on the growth and cultivation of crops (vegetable & non-vegetable), citrus, turf, flowers, and particularly in organically-deficient soils. Humic acid is not a fertilizer as it does not directly provide nutrients to plants, but is a compliment to fertilizer.
Benefits include:
Addition of organic matter to organically-deficient soils
Increase root vitality
Improved nutrient uptake
Increased chlorophyll synthesis
Better seed germination
Increased fertilizer retention
Stimulate beneficial microbial activity
Healthier plants and improved yields