Principles of application

Potassium chloride is the most widespread potassium fertilizer. It takes 80-90% of usage in most farms. The same amount of fertilizer is applied before sowing in autumn. Potassium chloride is applied almost on all soils except for alkaline soils. Fertilizer is more suitable for enriching soils with potassium and maintaining potassium at an optimal level.

Potassium chloride to a greater extend is spread on surface with further mixing it with soil. It can be applied while ploughing, pre-sowing cultivation and no-till operations.  At strip tillage, potassium chloride can be applied by mixing it with soil at a certain depth. Potassium is not movable in the soil because it reacts with soil absorption complex, but some part of the fertilizer is able to move in case of sufficient water supply. Eliminated chlorine anion, which is in the soil solution, migrates along the soil profile. That is why chlorine is washed out over several winter months. Potassium chloride applied in spring is not washed out in a short period of time. When the fertilizer enters the soil, it dissolves in the soil solution. Potassium reacts with soil adsorption complex by exchangeable or non-exchangeable adsorption. 

Under condition of sufficient water supply, potassium uniformity and accessibility increase.