Which of the following is/are the advantage/advantages of practising drip irrigation?

1. Reduction in weed
2. Reduction in soil salinity
3. Reduction in soil erosion

Select the correct answer using the code given below.

[UPSC Civil Services Exam – 2016 Prelims]

(a) 1 and 2 only

(b) 3 only

(c) 1 and 3 only

(d) None of the above is an advantage of practising drip irrigation

Answer: (c)

Explanation:

• Drip irrigation is a type of micro-irrigation system that applies small amounts of water and fertilizer uniformly across a specific area.
• Benefits of drip Irrigation:
  • Drip irrigation can be employed in all landscapes;
  • Water losses can be reduced to a minimum;
  • Soil erosion can be reduced to a minimum.
  • Fertilizer and nutrients can be used with high efficiency;
  • As water leaching is reduced, fertilizer/nutrient loss is minimized
  • Weed growth is reduced as water and nutrients are supplied only to the cultivated plant.
• Disadvantages of Drip Irrigation
  • The initial cost is high.
  • May cause clogging if the water is not filtered correctly.
  • Problems in moisture distribution.
  • Increases soil Salinity.

Therefore, option (c) is the correct answer.