Consider the following statements:

1. Sodic soils in Punjab have a sodium content of more than 15% and a pH above 8.5, making them strongly alkaline.

2. Saline soils in southwestern Punjab are primarily due to high rainfall and excessive groundwater recharge.

Select the correct code:

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

Answer (Detailed Solution Below)

Option 1 : 1 only

Detailed Solution

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Statement 1 is correct. Sodic soils are characterized by low electrical conductivity (EC < 4 dS m-1), high pH(>8.2), high Sodium Absorption Ratio (SAR > 13), and high exchangeable sodium percentage. Statement 2 is incorrect. Saline soils in southwestern Punjab result from evaporation enrichment and salt dissolution, not high rainfall.
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