Micro-Irrigation in India: Initiatives, Challenges, Way Forward (UPSC Economy)

Micro-irrigation (MI) — sprinkler and drip systems that deliver water directly to the root zone of crops — is the single most scalable reform for reconciling India's growth in farm output with its water scarcity. The Dalwai Committee on Doubling Farmers' Income calculated that MI can deliver 40% water savings, 45% productivity gains and 50% higher income. Yet India's MI coverage is only around 17 mha against a potential of 70 mha. This guide unpacks the initiatives, the barriers and the reform agenda.

What is Micro-Irrigation?

Micro-irrigation systems promote precision farming by making water available to the root zone of crops through controlled emitters, drip lines, and sprinklers.

• Drip irrigation — slow drip of water through emitters near the plant base; 90%+ water use efficiency.
• Sprinkler irrigation — water delivered in a spray pattern across the field; 75-80% efficiency.
• Mini-sprinklers, rain guns, fertigation — variations suited to specific crops and terrains.

Multi-Faceted Benefits of Micro-Irrigation

• Efficient deployment of water, electricity, fertilisers, labour.
• Higher crop productivity — up to 45% according to Dalwai Committee.
• Better quality of produce due to uniform moisture.
• Higher income — 50% increase.
• Reduced incidence of soil salinity and water-logging.
• Enables fertigation — delivers nutrients through water, reducing fertiliser use.
• Lower labour requirement — useful given migration and wage pressures.

Government Initiatives

Pradhan Mantri Krishi Sinchayee Yojana (PMKSY)

• Har Khet Ko Paani: end-to-end solutions in the irrigation supply chain.
• Per Drop More Crop (PDMC): promotion of drip and sprinkler irrigation; central flagship for MI.

Micro-Irrigation Fund (MIF)

• Managed by NABARD.
• Initial corpus: Rs 5,000 crore; doubled to Rs 10,000 crore subsequently.
• States can avail the fund to subsidise farmers beyond the PMKSY subsidy and to extend coverage to more crops/areas.

Other Related Instruments

• Atal Bhujal Yojana — community groundwater management encouraging MI adoption.
• PM KUSUM — solar pumps often paired with micro-irrigation.
• RKVY (Rashtriya Krishi Vikas Yojana) — state flexibility for MI augmentation.

Present Status

• Area under MI: around 17 mha (cumulative, 2024).
• Potential area: 70 mha.
• Coverage highly concentrated in Rajasthan, Andhra Pradesh, Tamil Nadu, Karnataka, Gujarat, Maharashtra, Telangana.
• Used mostly for sugarcane, cotton, horticulture crops; limited in paddy and wheat.

Challenges in Adoption

• Area under MI stuck at 17 mha against 70 mha potential.
• Highly subsidised canal water and electricity — no price incentive to switch.
• High initial capital cost — systems cost Rs 50,000 to Rs 1.5 lakh per hectare.
• Fragmented land holdings — average size 1.08 ha; small parcels make drip/sprinkler less viable economically.
• Lower subsidy for marginal farmers — around 55% subsidy under PMKSY-PDMC; small farmers need higher support.
• Limited role of banks in providing MI loans.
• No after-sale services — clogging in pipes, damaged emitters without maintenance support.
• Frequent power outages disrupt drip/sprinkler systems.
• Dismantling after every crop damages the equipment.
• Concentration in West/South India; low adoption in North and East.
• Limited crop coverage — mainly high-value horticulture, sugarcane, cotton; rice and wheat paddies underrepresented.

Strategies and Way Forward

Implement Dalwai Panel recommendations:

• Increase annual MI coverage to 2.5 mha per year to reach the 70 mha potential by 2045.
• Make MI compulsory across all forms of irrigation — flow, lift, ponds.
• Expand MI to water-guzzling crops like rice, sugarcane; mandatory MI for sugarcane in certain states already exists and should be scaled nationally.

Farmer education:

• Awareness and demonstration programmes.
• Farm schools and FPO-led peer learning.

Mandatory MI for water-guzzling crops:

• Several states have mandated MI for sugarcane; extend to paddy in critical groundwater blocks.

Special credit window:

• Low-interest loans for small and marginal farmers for MI.
• Expansion of MIF with reduced interest spread to states.

Incentivise MI in rainfed belts:

• Pair with rainwater harvesting and micro-storage.

Better after-sale service:

• Mandate manufacturer-led maintenance packages as part of the subsidy conditions.
• Training and certification for local technicians.

Crop-water budget integration:

• Link MI adoption with MSP procurement decisions and cropping-pattern incentives.

Leverage FPOs:

• Aggregate demand, negotiate discounts, manage maintenance.

Smart MI:

• IoT-based soil moisture sensors, AI-powered scheduling. Several AgriTech startups (Fasal, CropIn, Khetibuddy) work in this space.

Latest Developments (2024-26)

• Cumulative MI coverage crossed 17 mha by 2024; growth of roughly 1 mha per year.
• Budget 2025-26 — continued allocation for PMKSY-PDMC; linked to PM Dhan-Dhaanya Krishi Yojana for 100 low-productivity districts.
• PM KUSUM — solarisation target revised to 49,315 MW, with MI promotion bundled into feeder solarisation.
• Atal Bhujal Yojana completion by 2025 in 7 states, mandating MI in priority aquifers.
• Sugarcane MI mandate scaled up in Maharashtra and Karnataka.
• AgriStack and Digital Agriculture Mission integrating farmer records with MI subsidy DBT.
• Micro-Irrigation Fund corpus doubled to Rs 10,000 crore; utilisation pace picking up in 2024-25.
• PMKSY 2021-26 approved with Rs 93,068 crore outlay, of which PDMC is the primary MI allocation.

UPSC Relevance

GS-III Mapping

• Agriculture — irrigation, water-use efficiency, productivity.
• Indian Economy — rural infrastructure, credit, FPOs.
• Environment — groundwater conservation, sustainable agriculture.
• Technology — precision farming, IoT, drip systems.

Prelims Bullets

• Per Drop More Crop (PDMC) — PMKSY component; drip and sprinkler irrigation.
• Micro-Irrigation Fund — managed by NABARD; corpus doubled to Rs 10,000 crore.
• Dalwai Committee — Committee on Doubling Farmers' Income (2016-18).
• MI potential vs coverage: 70 mha potential; ~17 mha covered.
• MI benefits (Dalwai): 40% water savings; 45% productivity gain; 50% income rise.
• Fertigation — delivering fertilisers through irrigation water.
• PM KUSUM: solar pumps and feeder solarisation.
• Atal Bhujal Yojana: 7 states; community aquifer management.

Mains Angles

• "Micro-irrigation is India's water-resilience moonshot. Why has it stalled at a quarter of its potential?" Examine.
• "Free power and cheap water have defeated the case for micro-irrigation. Suggest a policy pivot."