← All questionsGS3 · 2021 · Agriculture ·Micro-Irrigation and the Water Crisis
QUESTION 4
GS3
10 marks

How and to what extent would micro-irrigation help in solving India’s water crisis?

WRITE IN
7 min
150 words

What the examiner wants

Explain how drip and sprinkler irrigation save water and judge how far they can solve India's water crisis.

How + To what extentAnswer exactly what the question asks.

Demand-wise check

  1. 1How: water-use efficiency 70–90% vs 30–40% for flood irrigation; fertigation; less groundwater pumping≈30 words
  2. 2Extent: agriculture uses about 80% of freshwater, so savings matter; but coverage is small≈30 words
  3. 3Limits: high cost, small holdings, power-free pumping can still drive over-extraction (rebound), crop choice (paddy, sugarcane)≈30 words
  4. 4Complements: crop diversification, pricing, recharge, PMKSY 'Per Drop More Crop'≈30 words

Open in about 20 words and close in about 20.

Answer plan

ContextMechanismExtent with dataLimitsComplementary measuresConclusion

Where marks usually go

  • Only explaining 'how' without 'to what extent'
  • Ignoring the rebound effect

Draw this

  • Bar: water efficiency of flood vs sprinkler vs drip

Value addition

  • DataAbout 14 million hectares were under micro-irrigation by 2023, against an estimated potential of about 70 million hectares.Ministry of Agriculture / Task Force on Micro Irrigation
  • StudyStudies on drip in Indian states show cases where saved water expanded irrigated area, so total use did not fall (Jevons paradox).IWMI research

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