Potassium formate (For Foliar Fertilizer)
Innova Potassium Formate (HCOOK) is an innovative potassium source
increasingly used in foliar fertilizer formulations. With its high
solubility, rapid nutrient absorption, and eco-friendly profile, potassium
formate provides an effective alternative to conventional potassium salts
like potassium chloride (KCl) and potassium nitrate (KNO₃).
Why Potassium Formate for Foliar Application?
Potassium plays a critical role in plant physiology, influencing water
regulation, photosynthesis, enzyme activation, and crop stress resistance.
When applied as a foliar spray, potassium formate ensures fast and efficient
nutrient uptake due to its unique molecular structure.
Potassium can adjust the colloidal state of cell protoplasts, increase the
intensity of photosynthesis, and promote the formation of starch and sugar
in crops. It has the effects of improving cold tolerance, drought tolerance,
disease resistance and lodging resistance for certain crops, fruits and
vegetables. Appropriate supply of potassium fertilizer can also promote the
absorption and utilization of nitrogen and phosphorus by crops, and increase
crop yield and fruit setting rate.
When crops and fruit trees are lacking in potassium, they will manifest as physiological exhaustion. Within two or three days, the leaves of the plants will rapidly turn yellow or red, and then wither and fall off. The stems die, commonly known as red leaf stem blight. Therefore, before crops, vegetables and fruit trees are seriously lacking in potassium, effective potassium must be supplemented, and foliar spraying of potassium is the most economical and effective way to supplement potassium.
Potassium fertilizers currently used in the market are generally potassium sulfate, potassium nitrate, potassium chloride and their compound fertilizers. What kind of foliar spraying potassium fertilizer to choose is nothing more than the following criteria:
In order to be clear, we can compare several foliar potassium fertilizers currently commonly used as follows (among them, potassium chloride contains extremely high harmful substance chloride ions, which is basically out of consideration.
Specifications of Innova Potassium Formate
| Item variety | Potassium oxide content (%) | Solubility (g/100g water) | Harmful substance chloride ion content (%) |
|---|---|---|---|
| Potassium formate foliar fertilizer (powder) | >53% | 331 | 0.0006% |
| Potassium formate foliar fertilizer (liquid) | >41% | Miscible with water in any ratio | 0.0004% |
| Potash fertilizer | 62% Excellent | 34.4 | Sodium chloride content ≤1.2% |
| Potash fertilizer | 50% Excellent | 11.1 | ≤1.0% |
| Potassium Nitrate | 46% Excellent | 31.6 | ≤0.2% |