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Micro irrigation is defined as the frequent application of small quantities of water directly above and below the soil surface; usually as discrete drops, continuous drops or tiny streams through emitters placed along a water delivery line.
Need of Micro irrigation
- To make agriculture productive,
- Environmentally sensitive and capable of preserving the social fabric of rural communities
- Help produce more from the available land, water and labor resources without either ecological or social harmony,
- Generate higher farm income
- On-farm and off-farm employment
Government Policy on Micro-irrigation
All governments support micro-irrigation because of its water use efficiency. The government of India had launched a subsidy scheme for micro-irrigation called National Mission on Micro Irrigation (NMMI) in 2006. This is a centrally sponsored scheme which promotes water-use efficiency by adopting drip and sprinkler irrigation. All States and Union Territories and all horticultural as well as agricultural crops are covered under the scheme.
Major, Medium, Minor Irrigation
Irrigation works have been classified as major, medium and minor, depending on their culturable command area.
1. Major Irrigation: Culturable command area (CCA) more than 10,000 hectares.
2. Medium Irrigation: Culturable command area more than 2,000 hectares but less than 10,000 hectares.
3. Minor Irrigation: Culturable command area up to 2,000 hectares.
