UPSC Previous Year Question | Mains GS3 | 2021

How and to what extent would micro-irrigation help in solving India’s water crisis ? (Answer in 150 words)

Answer

Introduction

Micro-irrigation delivers water near the root zone through drip or sprinkler systems, improving water productivity rather than merely expanding supply.

Benefits

Potential contribution

  • Drip reduces conveyance and evaporation losses and enables precise fertigation.
  • Sprinklers improve uniformity in uneven terrain and suit millets, pulses, oilseeds and horticulture.
  • Higher water productivity can reduce groundwater stress, energy use and salinity while raising yields.
  • It supports crop diversification and climate resilience where assured irrigation is limited.

Limits

Extent and constraints

  • It cannot solve basin-level scarcity caused by water-intensive cropping, free power or over-allocation.
  • High initial cost, clogging, maintenance, fragmented holdings, poor extension and unreliable electricity limit adoption.
  • Rebound effects may occur if saved water expands irrigated area without groundwater regulation.

Way Forward

Way forward

Combine targeted subsidies with water budgeting, crop planning, quality after-sales service, solar-pump regulation and community groundwater governance.

Keywords

Water productivity; drip; sprinkler; fertigation; groundwater; crop diversification; water budgeting.

Topics: agriculture, drip and sprinkler systems, micro-irrigation, water management