Which compound is mostly used in Pakistan for the reclamation of saline-sodic & sodic soils_________________?
Correct answer: C. Gypsum
- A. Apatite
- B. Calcite
- C. Gypsum
- D. Dolomite
Explanation
Gypsum supplies soluble calcium, which replaces exchangeable sodium on soil particles; the sodium can then be leached out. Apatite, calcite and dolomite are not the standard amendments for reclaiming sodic soils in Pakistan.
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