Rainwater conservation and recycling by optimal size on-farm reservoir

Balram Panigrahi, Sudhindra N Panda and Bimal Chandra Mal

Resources, Conservation & Recycling, 2007, vol. 50, issue 4, 459-474

Abstract: Hydrologic and economic analysis of the on-farm reservoir (OFR) was carried out in rainfed rice–mustard cropping systems in Eastern India followed by 2 years of field experiments in 1999 and 2000. The average contribution (average of 2 years) of direct rainfall and surface runoff from the diked crop fields contributed, respectively, about 79.5 and 20.5% to the total OFR inflow. The average contribution of evaporation loss, seepage and percolation loss and supplemental irrigation from the OFR contributed, respectively, about 10.0, 31.2 and 58.8% to the total OFR outflow. There was an average increase of rice yield of 44.0% over the rainfed rice because of application of 8.4cm supplemental irrigation from the OFR. Thus, with an application of 4.5cm supplemental irrigation from the OFR, 15.40% increase of mustard yield was recorded in 1999. Economic analysis indicated average net profit of Rs. 700 (US$ 1=Rupees (Rs.) 44.75 in Indian currency) from a farm area of 800m2. Average values of benefit–cost ratio, internal rate of return and pay back period of the OFR irrigation system were evaluated as 1.17, 14.8%, and 16 years, respectively. The study reveals that the OFR irrigation in small landholders is economically feasible system for rainwater harvesting and providing supplemental irrigation in rainfed farming system.

Keywords: Economic analysis; On-farm reservoir; Rainfed farming; Rainwater harvesting; Supplemental irrigation (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:50:y:2007:i:4:p:459-474

DOI: 10.1016/j.resconrec.2006.08.002

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