Kali‑T OP contains five forms of potassium. About 70% of the potassium in Kali‑T OP is in the form of potassium hydroxide and potassium carbonate, two forms of potassium that are more easily absorbed by the leaves and the least phytotoxic.

Potassium increases photosynthetic activity and intervenes in water regulation mechanisms. It is an indispensable nutrient for protein formation and the synthesis and transport of sugars. It serves as an activator in cell breathing and in many enzymes. It also facilitates calcium and magnesium assimilation. Potassium optimizes plant resistance in situations of stress. Kali‑T OP reinforces the effects of potassium by including silicates and carbonates. Silicates serve to strengthen cell walls (physical barrier against diseases, drought tolerance) and stimulate the plant’s defense mechanism against abiotic stresses. By increasing the pH on the surface of the leaf, carbonates create an environment less conducive to the establishment of fungal diseases such as speckle, monilia, and iodium.

The nitrogen contained in Kali‑T OP is in ureic form, which provides it with high cuticle penetration capability. This attribute contributes to the optimal foliar absorption of potassium and to other foliar products applied jointly.