Your search found 14 records
1 Groenfeldt, D.; Moragoda, R.; Ekanayake, R. 1987. Farmers' management participation in two irrigation systems. Paper presented at the 43rd Annual Meeting of the Sri Lanka Association for the Advancement of Science, Colombo, Sri Lanka, 9 December 1987. 9p.
(Location: IWMI-HQ Call no: IIMI 631.7.3 G744 GRO Record No: H003033)
(0.61 MB)
2 Sivasubramaniam, S. 1985. Irrigation development in major settlement projects. Paper presented at the Seminar on Land Settlement Experiences in Sri Lanka 1978-1985, 28 August-30 September 1985. 19p.
(Location: IWMI-HQ Call no: P 913 Record No: H03997)
(Location: IWMI-HQ Call no: 631.7.8 G744 SRI Record No: H04386)
Main report and five appendices. Appendix I- Policy studies briefing document; II- Irrigation water requirements; III- Basic data; IV- Not available; V- Economic aspects of water use
4 Berthery, D.; Sally, H.; Arumugam, J. 1989. Mathematical modeling of irrigation canal systems. Part I - Presentation of the "Mistral-Simutra" software package; Part II - Application of "Mistral - Simutra" to the Kalankuttiya branch canal (Mahaweli System H) Sri Lanka. Digana Village, Sri lanka: International Irrigation Management Institute (IIMI). v, 72p. (IIMI Working Paper 009)
(Location: IWMI HQ Call no: IWMI Record No: H05407)
(2.17MB)
5 Moragoda, R.; Groenfeldt, D. 1989. Organizational aspects of irrigation management in Kalankuttiya block, Mahaweli system H, Sri Lanka during the 1986 dry season. Digana Village, Sri Lanka: International Irrigation Management Institute (IIMI). iii, 30p. (IIMI Working Paper 011)
(Location: IWMI HQ Call no: IWMI Record No: H004330)
Field research on water flows and agricultural production in the Kalankuttiya Block of Mahaweli System H was initiated by IIMI staff in mid-1985 during Yala (dry season). The primary focus was to understand the effects of irrigation management practices on crop diversification from rice to "other food crops" (OFCs) such as chili, lentil, soybean, and onion. Faced with immanent self-sufficiency in rice production, but continuing large-scale imports of non-rice food crops, the government is trying to promote the cultivation of OFCs, which require intermittent irrigation, in schemes designed primarily for rice cultivation and more or less continuous water flows.
6 Moragoda, R.; Groenfeldt, D. 1990. Organizational aspects of improved irrigation management: Kalankuttiya Block, Mahaweli system H, Sri Lanka. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). vii, 27p. (IIMI Working Paper 019)
(Location: IWMI HQ Call no: IIMI WP No.19 Record No: H006343)
This report documents part of an operational experiment in Kalankuttiya Block of Mahaweli System H during the 1987 yala (dry season). The experiment or "action research" was conducted by the International Irrigation Management Insti tute (IIMI) in cooperation with the Mahaweli Economic Agency of the Mahaweli Authority of Sri Lanka. The experiment was the outgrowth of studies which focused on constraints to non-rice crops during the dry season. Careful monitoring of irrigation and cropping patterns in selected areas of the system, conducted from yala 1985, had documented three important constraints to di versified crops: 1) inadequate water control at the secondary and tertiary levels of the system, 2) lack of organization for water sharing from the secondary level downward, and 3) poor conununication between farmers and agency staff regarding water delivery schedules
(Location: IWMI-HQ Call no: IIMI 631.7.2 G744 IIM Record No: H013319)
(8.87 MB)
(Location: IWMI HQ Call no: PER Record No: H013372)
(1.39 MB)
This paper discusses the usefulness and limitations of using the concept of Relative Water Supply (RWS) for evaluating the performance of irrigation systems, with special reference to systems irrigating rice. It then describes and demonstrates the use of a modification of RWS called Cumulative Relative Water Supply (CRWS), which can be used in conjunction with RWS. The advantage of CRWS is that it provides a measure of the cumulated RWS throughout a season, both in absolute terms at any given time, and in terms of the overall seasonal trend. It allows comparison of performance of an irrigation system or subsystem both to the target, and to other systems or subsystems. It can therefore be used both as an analytical tool by researchers, and as an operational tool by managers. The use of CRWS in conjunction with RWS is illustrated with examples from Sri Lanka.
9 Somasiri, S. 1981. Land, water and crop management under irrigation in the dry zone of Sri Lanka: Agrotechnical information. Unpublished research report prepared for the Mahaweli Research Committee. 62p.
(Location: IWMI-HQ Call no: P 4897 Record No: H022661)
10 Athukorale, K.; Weerakoon, P. 1998. Women's participation in irrigated agriculture and farmer organisations: implications for the future. Paper 130 of Session 11. In International Irrigation Management Institute (IIMI). National Water Conference on Status and Future Directions of Water Research in Sri Lanka, BMICH, Colombo, Sri Lanka, 4-6 November 1998. Session 10: Watershed management; Session 11: Social and traditional aspects of water management. Research papers presented. 19p.
(Location: IWMI HQ Call no: IWMI 333.91 G744 INT Record No: H023522)
(1.11 MB)
11 IIMI. 1989. Study on irrigation systems rehabilitation and improved operations and management: Final report for ADB Regional Technical Assistance 5273. Digana Village, Sri Lanka: International Irrigation Management Institute (IIMI) 3 vols.
(Location: IWMI-HQ Call no: IIMI 631.7.7 G000 IIM Record No: H005430)
(20.03 MB)
Vol. 1 - Activity A: Rehabilitation and improvement for management; Vol 2 - Activity B: Dry season irrigation management for rice based systems; Vol. 3 - Activity C: Financing the cost of irrigation.
12 Panabokke, C. R. 1989. Irrigation management for crop diversification in Sri Lanka: a synthesis in current research. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). xv, 54p. (IIMI Country Paper Sri Lanka 3)
(Location: IWMI HQ Call no: IIMI 631.7.3 G744 PAN Record No: H005714)
The need to understand the technical and socioeconomic constraints in irrigation management for diversified cropping underlies this study. The main constraints identified include the unreliability and inequality of supply at the secondary and tertiary levels of the irrigation system, the lack of organization and management for sharing water below the secondary level, and the poor communication between agency staff and farmers in water delivery scheduling. Intervention studies have shown that flow measurements combined with regularly scheduled rotations and regular meetings between agency staff and farmers can enhance the management capacity of both. Because of the greater economic risks faced by farmers in growing non-rice crops as compared to rice, an assured market and a competitive price are indispensable for promoting diversified cropping.
(Location: IWMI-HQ Call no: 631.7.8 G744 SRI Record No: H046005)
(0.37 MB)
Main report and five appendices. Appendix I- Policy studies briefing document; II- Irrigation water requirements; III- Basic data; IV- Not available; V- Economic aspects of water use
(Location: IWMI-HQ Call no: 631.7.8 G744 SRI Record No: H046006)
(0.36 MB)
Main report and five appendices. Appendix I- Policy studies briefing document; II- Irrigation water requirements; III- Basic data; IV- Not available; V- Economic aspects of water use
Powered by DB/Text
WebPublisher, from