Assessing the economic impact of a low-cost water-saving irrigation technology in Indian Punjab: the tensiometer
| Autor: | R. S. Sidhu, Baljinder Kaur, Naresh Devineni, Kamal Vatta, Garima Taneja, Charlotte MacAlister, Upmanu Lall, P. S. Birthal |
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| Rok vydání: | 2018 |
| Předmět: |
Consumption (economics)
Irrigation 010504 meteorology & atmospheric sciences 0208 environmental biotechnology Flooding (psychology) Irrigation scheduling 02 engineering and technology Management Monitoring Policy and Law 01 natural sciences Variable cost Agricultural economics 020801 environmental engineering Tensiometer (soil science) Environmental science Economic impact analysis Electric power 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Water International. 43:305-321 |
| ISSN: | 1941-1707 0250-8060 |
| Popis: | This article assesses the impact of the tensiometer on the consumption of groundwater and electric power in paddy cultivation in Indian Punjab, and its subsequent economic benefits. We find that compared to the continuous flooding method, the tensiometer-based application of irrigation reduces water and power consumption by 13%, cutting variable costs by 7% without any yield penalty. If 30% of the paddy area is irrigated following tensiometer-based schedules, then the state could save a total of 0.67 million ha m of water and 1516 million kWh of electric power in 2010–2025, with aggregate economic benefits of US$ 459 million. |
| Databáze: | OpenAIRE |
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