Water use efficiency in increasing order:

[a] Surface irrigation

[b] Sprinkler irrigation

[c] Drip irrigation

[d] Pitcher pot irrigation

Choose the correct answer from the options given below:

Correct option is A

Correct option: (a) — [a], [b], [c], [d]
Explanation (increasing water use efficiency = lowest → highest):
· (a) Surface irrigation
· Lowest efficiency due to:
· High conveyance losses
· Evaporation and percolation losses
· (b) Sprinkler irrigation
· More efficient than surface irrigation.
· Reduces runoff and improves uniformity.
· (c) Drip irrigation
· Delivers water directly to the root zone.
· Minimizes evaporation and deep percolation losses.
· (d) Pitcher pot irrigation
· Very high efficiency.
· Slow seepage directly to roots with negligible loss.
· Common in arid regions and kitchen gardens.
➡️ Hence, surface < sprinkler < drip < pitcher pot.
�� Key Points
· Water use efficiency increases as water application becomes more localized.
· Pitcher pot irrigation is among the most water-efficient traditional methods.