Scheduling of canal irrigation
Canal irrigation is the
cheapest and the most favourable source of irrigation in Odisha. In the scheduling
of canal irrigation, the flow of water in canal has to be maintained so that
farmers can get water as per their requirement in an adequate, dependable,
efficient, and equitable fashion. Proper scheduling of canal irrigation matches
the supply with demand and saves about 40-60% water. However, difficulties in
scheduling irrigation occur for the tail-ender farmers due to inequitable
distribution of water caused by the seepage loss or use of more water by
farmers at the starting point that makes farmers at the tail end to get a lower
volume of water compared to farmers at the privileged positions, particularly
at the head of the watercourse. Water allocation on volumetric basis by the
Pani Panchayat is an option for optimum utilization of available canal water
uniformly. Additionally, canal water helps to raise the groundwater table by 0.3–0.4
m annually.