Question

Phosphorus is immobile in soil because
(A) phosphate ions are held by anion exchange
(B) Phosphate ions are held by ligand exchange
(C) Phosphate ions are adsorbed as sparing soluble phosphates of Fe/Al.Ca
(D) Phosphate ions are leached as completely soluble phosphates of Fe/Al.Ca
Choose the correct answer from the options given below :

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

Hint:

Because phosphorus is highly immobile, plants can only absorb it from the soil within a few millimeters of their root surfaces. Consequently, plants rely on extensive root growth and mycorrhizal fungi networks to access soil phosphorus.

Answer 1

The Correct Option is A