Estimating technical and irrigation water productivities in rice production in Tamil Nadu, India

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dc.creatorKuppannan, Palanisami
dc.creatorRamarao, R.C.
dc.creatorSamiappan, S.
dc.creatorMalik, Ravinder Paul Singh
dc.date2017-04
dc.date2017-09-08T09:17:40Z
dc.date2017-09-08T09:17:40Z
dc.date.accessioned2026-06-27T18:30:05Z
dc.descriptionThe overall measure of farm-level technical efficiency is generally used to derive recommendations for the use of individual inputs. In this paper, joint estimation is made of technical and individual input-use (e.g. irrigation water productivity) efficiencies. This indicates that overall technical efficiency is not an indication of the efficiency level of all the individual inputs used. This is because the efficiency of individual inputs may vary and suggests that greater effort should be made to improve such efficiencies in comparison with overall technical efficiency. The model is applied to rice production in four tank-irrigated districts in Tamil Nadu, India, which is one of the most important tank-irrigated areas in India. The average technical efficiency is 62.8%, which indicates that in order to achieve the present level of production, 62.8% of the current level of input resources is sufficient. Average irrigation water productivity is estimated at ~34%, indicating that current output levels could be achieved with 66% less irrigation water. These findings also suggest the need for improvements in crop and water productivity. Thus, the paper makes a contribution in the form of a methodology development for possible adoption in future irrigation water productivity studies.
dc.identifierhttps://hdl.handle.net/10568/83365
dc.identifier.urihttp://hdl.handle.net/123456789/157751
dc.languageen
dc.publisherWiley
dc.rightsOpen Access
dc.sourceKuppannan, Palanisami; Ramarao, R. C.; Samiappan, S.; Malik, Ravinder Paul Singh. 2017. Estimating technical and irrigation water productivities in rice production in Tamil Nadu, India. Irrigation and Drainage, 66(2):163-172. doi: 10.1002/ird.2099
dc.subjectirrigation water
dc.subjectwater productivity
dc.subjecttechnological changes
dc.subjectmeasurement
dc.subjectagricultural production
dc.subjectrice
dc.subjectcrop yield
dc.subjectwater use
dc.subjectwater management
dc.subjecttank irrigation
dc.subjectfarmers
dc.subjectsocioeconomic environment
dc.subjectmodels
dc.subjectstochastic processes
dc.titleEstimating technical and irrigation water productivities in rice production in Tamil Nadu, India
dc.typeJournal Article

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