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