An Analysis of Impact of Irrigation on Cropping Intensity in Tamil Nadu

K.R.Karunakaran and K. Palanisami
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K.R.Karunakaran: Agricultural Research Station, Virinjipuram, Tamil Nadu, India
K. Palanisami: Tamil Nadu Agricultural University

Indian Economic Review, 1998, vol. 33, issue 2, 207-220

Abstract: Serious efforts are being taken by the Government through the Five Year Plans in Agriculture Development, especially in heavy investment on the major and medium irrigation projects to attain sustainability in Agricultural production. Between the two criteria of land productivity, cropping intensity is greatly influenced by irrigation. Hence, an attempt has been made in this paper to analyse the impact of irrigation particularly different sources of irrigation on cropping intensity with the view to evaluate investment pattern in major and minor irrigation projects and maximising the benefits of the available resources using the secondary data from 1969-70 to 1993-94 in Tamil Nadu.The linear regression models were used in this study and the estimated results revealed definite evidence of close relationship between irrigation development and intensity of cropping at state level. These results are also confirmed by cross section regression analysis with different sources of irrigation. Beside, canal and tank irrigation, dug well irrigation also showed significantly positive impact on the cropping intensity up to 1978-80. After that tubewell and dug-well irrigation had more impact on cropping intensity. Inspite of declining trend in tank irrigated area, its significant positive impact on cropping intensity calls for immediate attention to revive the tank irrigation system. The minor irrigation (tube and dug well) which showed desirable impact on intensity of cropping, need more investment in subsequent plans. More particularly it requires only minimum investment per hectare than major and minor irrigation projects.

Date: 1998
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