Question

Which method of irrigation is most suitable for arid and semi-arid horticultural regions?

• A. Flood irrigation
• B. Sprinkler irrigation
• C. Drip irrigation
• D. Basin irrigation

Hint:

Remember: Dry areas = Drip irrigation (maximum water efficiency).

Answer 1

The Correct Option is C

Concept: Efficient water management is crucial in arid and semi-arid regions where water is scarce. Irrigation methods must minimize water loss and maximize efficiency.
Step 1: Understanding water scarcity.
In dry regions, evaporation and water wastage must be minimized.
Step 2: Drip irrigation advantage.
Drip irrigation delivers water directly to the root zone in small quantities, reducing evaporation and runoff losses.
Step 3: Evaluating the options.

• Flood irrigation $\rightarrow$ High water loss (incorrect)
• Sprinkler irrigation $\rightarrow$ Moderate efficiency, some evaporation loss (incorrect)
• Drip irrigation $\rightarrow$ Most efficient, minimal wastage (correct)
• Basin irrigation $\rightarrow$ Not suitable for water-scarce areas (incorrect)

Step 4: Additional insight.
Drip irrigation also improves fertilizer use efficiency (fertigation) and reduces weed growth.
Step 5: Conclusion.
Thus, drip irrigation is most suitable for arid and semi-arid horticultural regions.