Behavior of Potassium in Soil: A mini review

Potassium (K) is vital to many plant processes and is available in different forms i.e., freely available K in soil is utilized by plant, whereas fixed K (minerals, zeolites, taranakinte, alunite, aluminosilicates) and structural K (feldspars, micas and minerals) is not available for plant uptake and these both forms are regarded as exchangeable and non exchangeable forms of K. Furthermore, the availability of K to plants also depends upon soil properties i.e., moisture, aeration, temperature, tillage system as well as K dynamics. Therefore, rate of K exchange vary among different soils and ultimately, the uptake of K affect the growth and yield in plants.