ECONOMIC ANALYSIS OF CONJUNCTIVE USE OF IRRIGATION WATER IN CAUVERY COMMAND AREA OF KARNATAKA
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Date
2018-08-01
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University of Agricultural Sciences, Bangalore
Abstract
This study to analyse the economics of irrigation among the farms across the surface water (SW), groundwater (GW) and conjunctive use (CU) situations was undertaken in Cauvery command area. The primary data was collected from 60 farmers each under three irrigation situations selected using random sampling method. Dummy regression and natural resource economics were used for analysis. The results indicated that the CU farmers realized higher net returns per acre (` 39,270) followed by SW (`
17,608) and GW (` 11,166) and farmers using micro irrigation were obtained higher returns (` 21,446) than those under conventional irrigation system (` 11,124). The annual cost of irrigation per acre was highest for GW (` 10,002) followed by CU (` 5,763) and SW regime (` 933). The cost per acre inch of groundwater was ranging from ` 232 to ` 466. Water use efficiency was lowest in SW situation (` 305/acre inch) compared to farmers under GW (`473/acre inch) and CU (` 751/acre inch). The annual cost of negative externality was higher for farmers using sprinkler irrigation (` 7,627) and least for farmers using conventional method (` 1,682). The share of energy cost in total cost of irrigation was highest under GW regimes with 26 to 38 per cent and lowest under CU regimes with 24 to 33 per cent. Given the economic superiority of conjunctive use of irrigation, it is necessary to incentivize, wherever feasible by capacity building of farmers about cropping pattern, irrigation systems and encourage micro irrigation methods.