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Humic and fulvic acids are chelators for crops

June 23, 2020

The main organic component of soil, contains humic acids, fulvic acids and humins. Humates come from a variety of sources, such as shale, coal and mudstone.

What is humic acids?

Complex acids that contain groups of ions arranged to enable chelate complexes. Chelate complexes enable humic acids to regulate the bioavailability of metal ions present in a plant’s grow environment. Humic acids are water-soluble in water with a pH higher than two. They are dark brown to black in color.

In crops, chelation makes it possible for nutrients to move within plant bodies more freely, making them more available to the crops. Chelates are characterized by their ability to retain and release specific metal ions.

Humic and fulvic acids are chelators for crops

How to use humic and fulvic acids for crops?

Humic acid comes in a few different forms. You can apply dry humic acid powder to your soil, or you can dissolve it in water and deliver it to your crops through watering. You can also purchase liquid humic acid, dilute it, then deliver it to your crops via watering.

The chelating action of humic acid is sometimes used to produce chelated iron products. Without the addition of a nutrient such as iron, the claim is often made that humic acid has the ability to solubilize micronutrients already in the soil. This is a valid claim,but one has to realize that turfgras roots themselves excrete organic compounds that solubilize micronutrients.

The benefits of humic and fulvic acids in plant growth.

For crops, humic and fulvic acids are chelators. They combine minerals to make them into organic compounds that can be ingested by plants more easily. They also enable the soil to hold more water and can increase the water infiltration of the soil. Additionally, humic and fulvic acids restrict toxins present in the soil, reducing the amount of harmful substances that reach the crop’s roots.