Estimation of the economic value of irrigation water in canal and tube well command areas

In recent years, inequality in the distribution of tube wells and non-availability or non-accessibility of canal water during the rabi season leads to a lack of economic value fixation of irrigation water to crops. The main objective of this paper is to calculate the economic value of irrigation water for major crops in the Paliganj distributary of the Sone canal system and the Nalanda corridor site of tube well irrigation, Bihar, India using the Residual Value Method (RVM). Results revealed that the average irrigation water economic value on the basis of applied irrigation through the canal and tube well in the Paliganj distributary for rice, kharif maize, wheat, lentil, khesari, gram, rabi maize, potato, onion, and green gram crops was assessed as 3.73, 22.60, 11.67, 21.50, 27.42, 23.27, 14.75, 98.06, 84.92, and 27.17 Rs./m(3), respectively. In the Nalanda corridor, the average irrigation water economic value of rice, kharif maize, wheat, lentil, gram, pea, mustard, potato, rabi maize, and green gram crops was assessed as 12.54, 24.61, 18.71, 44.15, 39.53, 37.85, 32.35, 96.93, 15.44, and 30.25 Rs./m(3), respectively.