Potassium forms a stimulant for flowering and the development of fruits. Potassium deficiency can then cause spills, deformations or defects in the environment.

In addition, potassium intervenes: water balance of the plant, enzymatic activity, photosynthesis and metabolism of N and proteins.

Low levels of phosphorus and potassium in flowering and pollination can lead to a significant reduction in the potential for flowering and a significant decrease in the number of pollinated fruits.