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

India uses about 80% of its freshwater in agriculture, much of it wasted through flood irrigation. Micro-irrigation, drip and sprinkler systems that deliver water directly to the root zone, offers a partial but significant solution to the deepening water crisis.

How micro-irrigation helps

• Water saving: raises irrigation efficiency to 70-90% against 30-40% for flood irrigation, saving 30-50% water.
• Higher yields with less input: precise fertigation improves productivity while cutting fertiliser and energy use.
• Groundwater conservation: reduced pumping eases depletion in over-exploited blocks of Punjab, Haryana and Maharashtra.
• Suitability for water-scarce regions: enables cultivation on undulating and sandy terrain and for horticulture.

Extent and limits

• The Per Drop More Crop component of PMKSY and the Micro Irrigation Fund have expanded coverage to several million hectares.
• Yet it addresses efficiency, not overall availability; high upfront cost, small fragmented holdings, and unsuitability for some flooded crops like paddy limit adoption.

Micro-irrigation can substantially ease the crisis if paired with crop diversification away from water-guzzling paddy and sugarcane, rational power and water pricing, rainwater harvesting and watershed management. It is therefore a key instrument for water-use efficiency rather than a standalone cure for overall water scarcity.