Abstrakt

Conveyance Efficiency Improvement through Canal Lining and Yield Increment By Adopting Drip Irrigation in Command Area

P. B. Jadhav, R. T. Thokal, M.S. Mane, H.N. Bhange and S.R.Kale

Conveyance losses from lined and unlined sections of canal irrigation network were determined under existing situation and the scenarios for different management strategy were developed to utilize saved water for irrigation in Panchnadi Minor Irrigation Project. The overall efficiency and total loss from the lined, unlined section of canal and unlined field channel under existing condition was obtained as 75, 52 and 35 per cent and 0.184, 0.61 and 0.183 Mm3 respectively. These results revealed that management interventions of converting the unlined canal network sections into lined sections can improve conveyance efficiency up to 75% and 0.376 Mm3 of water can be saved from which about 43 ha additional area can be irrigated. The intervention of micro-irrigation systems can lead to 24.42 to 235.54 per cent by adoption of drip irrigation from 10% to 100% and project net benefit was found to increase to Rs.10.41 lakh and Rs.13.17 lakh over 10.03 lakh with 0.99 and 9.8 ha additional area can be brought under irrigation respectively.