Humic Acid vs Fulvic Acid
Humic acids and Fulvic acids are frequently used as plant nutrient supplements. Normally a humic substance contains many molecules. Some molecules contain aromatic nuclei. Phenolic and carboxylic groups may be attached to them. These contribute to the surface charge of the molecule. Humic acids behave like dibasic acids.
What is Humic Acid?
Humic acid is a component of humic substances. These are soluble in water at greater pH values but not under acidic conditions. The collective name of the acid radical found in a humic matter is the humic acid. Liquid humic acid is a suspension. It can be applied in plant production as a plant growth stimulant and soil conditioner. Potassium humates are isolated from leanardite. Then they are dissolved in water. The outcome is an aqueous suspension that has a high content of humic acids, iron, and potassium; also, a large number of trace elements. Now this is ready for uptake by plants. These are very important in horticulture.
Plant growth depends upon inorganic compounds. Organic matter is useful for plants only if it is broken down into inorganic forms. Humus increases the water-holding capacity of the soil and thus influences soil fertility. Humic acid helps plant tissues get oxygen needed for aerobic respiration. It also can combine with sunlight and photosynthesis. When humic acid is sprayed on to the leaves, the amount of oxygen taken up by the plant changes significantly and that enhances plant growth. Humic acid also can increase productivity of microorganisms. They can also act as hydrogen acceptors in plant root storage tissues. Humic acid, if sprayed on to the leaves, can increase the chlorophyll content in the leaves. Humic acid also can directly influence enzyme synthesis.
What is Fulvic Acid?
Fulvic Acid is a type of Humic Acid compounds. It is the most plant active humic acid compound. Fulvic acid gives many physical, chemical and biological benefits. Fulvic acid helps to dissolve minerals and metals. They dissolve into ionic forms. Fulvic acid turns these metals and minerals into readily absorbable, bio available form. Also, fulvic acid can weather and dissolve silica. Fulvic acid increases the availability of nutrients and makes them more readily absorbable by plants. Fulvic acid can readily complex with minerals and metals. Then they become available to plant roots and thus they are easily absorbed through cell walls. Fulvic acid can help the immobile elements to be easily transported. Fulvic acid can also dissolve vitamins, coenzymes, auxins, hormones and natural antibiotics and make them easily available. Fulvic acids have the capability to react with each other and with the cells and synthesize new mineral compounds. One of the best examples is the transmutation of vegetal silica and magnesium, to form calcium in animal and human. Fulvic acid can store complex vitamins.
What is the difference between Humic and Fulvic Acids?
• Fulvic acids have a lower molecular weight than humic acids.
• Fulvic acids contain higher oxygen content than humic acids.
• Fulvic acids are more plant active forms than humic acids.
• All fulvic acids are humic acids, but not all humic acids are fulvic acids.