The readily available form of K in soil ranges from

Solution (By Examveda Team)

The readily available form of K in soil ranges from 0.1 - 2.0% of total potassium in the soil. It consists of potassium dissolved in the soil solution and held on the exchange positions of the clay and organic matter.
A readily available form of phosphorus is dissolved in soil water and held on clay particle's exchange sites, which are found on the surface of clay particles.