Question

The different pools of potassium in soils are
(A) Soil solution K
(B) Fixed K
(C) Exchangeable K
(D) Lattice K

• A. (A), (B) and (D) only
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D)
• D. (B), (C) and (D) only

Hint:

All four forms—solution, exchangeable, fixed, and lattice—represent different potassium availability levels.

Answer 1

The Correct Option is C

Potassium exists in soils in four pools: soil solution (readily available), exchangeable, fixed, and lattice (mineral form). All contribute to K dynamics in soil.