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An Appraisal of Water and Power Budgeting Systems for Sustainable Irrigation at Ubombo

Author Affiliations

  • 1Department of Agricultural Engineering and Land Planning, Sokoine University of Agriculture, P. O Box 3003, Morogoro, TANZANIA
  • 2 Ubombo Sugar Limited, P.O Box 23, Big Bend, SWAZILAND

Res. J. Engineering Sci., Volume 3, Issue (4), Pages 1-9, April,26 (2014)


An analysis is given of the water and power budgeting systems used at Ubombo Sugar estate for sustainable irrigation water supply. A desk review of the approaches used to establish water and power budgets was carried and a new model was developed parallel to existing budgets to establish discrepancies. The development process constituted a broad set of parameters such as meteorological data, crop data and planted area, harvesting programs, irrigation systems, pumps and motor specifications, pumping hours, cost per kilowatt hour and actual flow rates. Water and power budgets were found not satisfactory with regards to satisfying crop water demand. Actual water inflows and pumping were determined by capacities of structures used for conveyance and losses were incurred during periods of low demand due to continuous flow type of delivery system. Electricity budgets were often based on historical power records which affected overall water supply as 70% of the estate is under pressurized irrigation. The new model developed from first principles of water and power demand demonstrated that existing budgeting systems limited the use of the resources particularly electricity and caused severe losses on irrigation water. Inaccurate supply-demand indices also affected decision making on bulk water management. Consequently, a new and improved budgeting model needs to be developed and adopted for sustainable irrigation water supply and sugarcane yields.


  1. Marlow R.L., Water Management; Engineering handbook, Washington DC (2002)
  2. Hess T., Knox J., Weatherhead K., Stephens W. and Kay M., Management of Irrigation for the Sugar Industry. Cranfield University, United Kingdom (2009)
  3. M. Ignatius, M. Imtiyaz and J.L.G. Kumar, Response of Cabbage (Brassica Oleracea) Under Variable Irrigation and Lateral Spacing, Res. J. Engineering Sci., 10),1-9 (2013)
  4. Shah S.M. and Mistry N.J. Evaluation of Groundwater Quality and its Sustainability for an Agriculture use in District Vadodara, Gujarat, India, Res. J. Engineering Sci., 2(11), 1-5(2013)
  5. Venkateswara R. S. Sastry P.G. and Ghorpsde V.G. Reservoir Sedimentation and Concerns of Stakeholders. Res. J. Engineering Sci., 3(2), 29-32 (2014)
  6. Aheeyar M.M.M., Innovative Strategy in Participatory Water Management: A Case of Bulk Water Allocation in Sri Lanka ; Hector Kobbekaduwa Agrarian Research and Training Institute Colombo, Sri Lanka (2010)
  7. Baillie C.P., Strategies for Maximising Sugarcane Yield with Limited Water in the Bundaberg District, Department of Agricultural Engineering, University of Southern Queensland (2009)
  8. Asian Development Bank. Participatory Irrigation Management, Learning Lessons, IndependentEvaluation Department(2012)
  9. Netafim, Sugarcane Irrigation, South Africa (2012)
  10. Environmental Protection Agency, Irrigation techniques and management practises(2009)
  11. Himanshu S.K., Kumar S. Kumar D. and Mokhtar A., Effects of Lateral Spacing and Irrigation Scheduling Cabbage (Brassica Oleracea) in a Semi Arid Region of India. Res. J. Engineering Sci.,1(5), 1-6 (2012)
  12. Van Waveren E. and Nhlengetfwa J.V., Agro-climatic characterization of Swaziland. FAO/UNDP/GOS Land Use Planning for Rational Utilization of Land and Water Resources Project SWA/89/001. Field Doc. 1. Mbabane (1992)
  13. Savva A.P. and Frenken K., Irrigation Manual for Planning, Development, Monitoring and Evaluation of irrigated Agriculture with Farmer Participation. Food and Agriculture Organization of the United Nations FAO Sub-Regional Office for East and Southern Africa, Harare (2002)
  14. Dash S., Khatua K.K., Naik B. and Mohanty P.K., Energy Loss for a Highly Meandering Open Channel Flow, Res. J. Enengineering Sci., 2(4), 22-27 (2013)
  15. Swaziland Sugar Association, Management of Irrigation for the Sugar Industry(2009)