The amendment used for reclamation of alkali soil is

Correct option is B

1. Definition of Alkali Soils:
· Soils with high sodium content, poor drainage, and high pH (>8.5).
2. Role of Gypsum:
· Calcium sulfate (Gypsum) replaces sodium in soil, improving soil structure and permeability.
3. Method of Application:
· Applied at 2-10 tons per hectare based on soil test recommendations.