Question

When the soil concentration in water extracted from saturated soil is found to be greater than 18 mmhos/cm, then the soil is said to be:

• A. Highly saline
• B. Medium saline
• C. Slightly saline
• D. Non-saline

Hint:

Soils with \( EC>18 \) mmhos/cm are considered highly saline and require special irrigation management.

Answer 1

The Correct Option is A

Step 1: Understanding Soil Salinity
Soil salinity is measured in terms of electrical conductivity (\(EC\)).
Step 2: Evaluating Salinity Levels
- Slightly saline: \(EC<4\) mmhos/cm - Medium saline: \(4<EC<8\) mmhos/cm - Highly saline: \(EC>18\) mmhos/cm
Step 3: Conclusion
Since the given soil has \(EC>18\) mmhos/cm, it is classified as highly saline.