FORMS OF SOIL POTASSIUM-A REVIEW

By M. Lalitha, M. Dhakshinamoorthy. 2014

56 citations recorded by the source corpus.

The knowledge about different forms and availability of potassium is must while studying the response of crops to K. Because Potassium supply to crop plants is a complex phenomenon involving relationships among various K fractions in soil. Potassium availability to plants in general is governed by different forms of K viz water soluble K, exchangeable K, fixed K and mineral K. Plants utilize not only the readily available K but also the non-exchangeable and mineral K during the crop growth. The potassium availability to plants is determined by the rate of change in the dynamic equilibrium between different forms of K in the soil which in turn is controlled by the mineral make up, rate of weathering and exchange properties of the soil.

Subfields: Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/bc4ca0427c9dcfffdfa6f9b25dc72ff98bac4cb3