The Different between the humic acid and potassium humate

The humic acid we usually refer to is also called humic acid powder, which is essentially leonardite after such processes as sieving and impurity removal. Potassium humate is made after leonardite is activated by alkali and additives such as potassium hydroxide are added. The differences between humic acid and potassium humate are chiefly as follows.

1. Different  Water Solubility & Usages
Humic acid has a macromolecular structure that is insoluble in water while potassium humate is of a small molecular structure that is soluble in water.
When they are compared, potassium humate has higher water solubility, higher activity and high chelation. So it can be applied to the plants by dripping, irrigation and spraying. If humic acid is used in agriculture, it is usually spread directly to the field.

2. Different Ingredients
As the name suggests, the key ingredient of humic acid product is humic acid.
As for potassium humate, in addition to humic acid content, there is potassium element in it, too. And potassium is essential for plant growth.
It can make the stems strong, improve plants’ resistance against insects, cold weather, droughts and plant lodgings. It can also promote the growth of roots, bulbs as well as fruit. And it enhances the appearance and color of the fruits, too.

3. Different Shapes
Humic acid is usually in the form of powder and balls.
Potassium humate comes in more shapes, such as powder, granules, balls, flakes, etc.