Vol. 11, Issue 8 (2022)

Water productivity was studied with Cobb-Douglas production function, the respondents in different irrigation ecosystem faced several problems which were analysed with Garett’s Ranking Technique. The results revealed that in both tank and groundwater irrigation ecosystem the irrigation intensity was highest with 204.79 percent and it was higher over tank irrigation ecosystem by 38.40 percent and over ground water irrigation ecosystem by 44.38 percent. The water availability was also high in tank and groundwater irrigation ecosystem. The water quality was average in all the three irrigation ecosystems and good water quality was dominant in ground water irrigation ecosystem. Ground water irrigation ecosystem had the best water productivity among the three irrigation ecosystems. In all the three ecosystems water productivity responded to inputs and labour which augurs for a good sound irrigation ecosystem. In all the three irrigation ecosystems, the most important problem faced was late or early rainfall. Hence Government should plan for strategies to mitigate the harmful effects of uneven rainfall in the district and Agricultural Extension Department should conduct training programme on the effective usage of inputs to increase productivity in tank and ground water irrigation ecosystems.