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| Mahendran, R.; Chandrasekaran, M.; Gurunathan, S.. |
| Falling groundwater tables and depletion of economically accessible groundwater resources would have major social and economic consequences. The present study has been taken up with the overall objective of evolving optimal crop plans to sustain the use of groundwater resources for irrigation. Perambalur district was purposively selected for the study as it mainly depends on groundwater for its irrigation. Linear programming technique was used to evolve optimal crop plans. The constraints identified were primarily irrigation water, besides land availability during the cultivating seasons and capital. Six typical farms were selected, one each for the open well, wells in tank command area and tubewell-irrigated farms in critical and over-exploited... |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/57750 |
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| Loganathan, R.; Balasubramanian, R.; Mani, K.; Gurunathan, S.. |
| Cotton production in India is at cross roads for the past few years. Till recently it was the hybrid that was at the focus but the era of genetically modified cotton has arrived. There has been lot of hue and cry regarding the commercialization of Bt cotton in India since Genetic Engineering Approval Committee (GEAC) has approved the use of Bt cotton seeds. This study has analysed the economic impact of biotechnologically engineered cotton cultivation in Tamil Nadu and the factors affecting the adoption of Bt cotton varieties. The study is based on a sample size of 76 Bt cotton farmers and 44 non-Bt cotton farmers from Salem and Perambalur districts. The results have indicated that only about one-third of the non-Bt cotton farmers are not aware about Bt... |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/57472 |
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| Gurunathan, S.; Palanisami, Kuppannan. |
| The study has revealed that over-exploitation of groundwater has effected drastic changes in energy input-use and energy output produced across the regions in Coimbatore district and the Tamil Nadu state. Energy equivalent values have been used for various direct sources of energy (human, animal and mechanical power), indirect sources (fertilizers, pesticides, manures), commercial, non-commercial, renewable and non-renewable energy sources to analyse the economics of energy usage in the agricultural production process in the two different groundwater development regions of the Coimbatore district. Energy inputs usage has been found very high in groundwater less-exploited area of Perur in paddy and cotton crops. For the coconut crop, Palladam block has... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/47359 |
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| Sivasakthi Devi, T.; Ramasamy, C.; Gurunathan, S.. |
| Effluents discharged by several industries, particularly the textile dyeing industry, have led to severe pollution of surface and groundwater sources and soils, which have ultimately affected the livelihood of the poor. Environmental problems in the agricultural sector caused by dyeing industrial pollution in Karur district have been discussed in this study. Averting Expenditure Approach and Contingent Valuation technique have been employed for this purpose. The farm income and distance between farm and polluted river have been found significant in deciding the value of polluted lands. The pollution averting expenditure incurred by the farmers increases with increase in the intensity of pollution. It is mainly the farm income that determines the pollution... |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/96934 |
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