Your search found 846 records
(Location: IWMI-HQ Call no: 631.7.6.3 G584 HAM Record No: H079)
2 Levine, G.; Hart, H. C. 1981. Mobilizing local resources for irrigation. New York, NY, USA: Agricultural Development Council. 16 p. (Agricultural Development Council report no. 22)
(Location: IWMI-HQ Call no: 631.7.3 G572 LEV Record No: H060)
Summary of a seminar held in Colombo, Sri Lanka, 11th-15th August 1980
3 Chawdhuri, S. D.; Gisselquist, D. 1984. Command area development for minor irrigation: Integration of organizational, economic, agronomic, engineering and institutional components. Dhaka, Bangladesh: Soil and Irrigation Division. Bangladesh Agricultural Research Council. iv, 64p.
(Location: IWMI-HQ Call no: 631.7.6 G584 CHA Record No: H062)
4 Karim, Z.; Nelson, L. J.; Idris, M.; Baxter, J. C.; Khan, C. M. A.; Oad, R. N.; Podmore, T. H.; Hossain, M. I.; Haider, M. I.; Karim, K. B.; Laitos, W. R. 1983. Diagnostic analysis of five deep tubewell irrigation systems in Joydebpur, Bangladesh. Fort Collins, CO, USA: University Services Centre. Colorado State University. xiii, 209p. (Water management synthesis report no.15)
(Location: IWMI-HQ Call no: 631.7.6.3 G584 KAR Record No: H064)
(Location: IWMI-HQ Call no: 631.7.2 G732 PHI Record No: H054)
(Location: IWMI-HQ Call no: 631.7 G212 AND Record No: H0145)
Volume 1: Main report. Volume 2: Annexes. Annex A - Donor activities relating to irrigated agriculture; Annex B - Irrigated perimeters in Niger: Existing and under way; Annex C - Agronomic aspects of irrigated agriculture in Niger; Annex D - The economics of irrigated agriculture development and performance in Niger; Annex E - Vegetable marketing in Niger; Annex F -Institutional and social issues related to irrigated agriculture in Niger; Annex G - Environmental review of irrigation in Niger; Annex H - Program and project possibilities; Annex I - Terms of reference for vegetable marketing study; Annex J - Impact of irrigated agriculture on public health in Niger with special reference to Schistosomiasis; Annex K - Assessment of the engineering aspects of irrigation in Niger.
(Location: IWMI-HQ Call no: 631.7.4 G648 IND Record No: H0129)
(Location: IWMI-HQ Call no: 631.7.4 G635 IND Record No: H0130)
9 Adams, W. M.; Grove, A. T. (Eds.) 1983. Irrigation in tropical Africa: problems and problem solving. Cambridge: African Studies Centre. iv, 148p. (Cambridge African Monograph 3)
(Location: IWMI-HQ Call no: 631.7.8 G100 ADA Record No: H0151)
10 Haider, M.; Skold, M. 1983. Planning irrigation improvements in Egypt: Act of policies and prices on farm income and resource use. Cairo, Egypt: Egypt Water Use and Management Project. vii, 80p. (EWUP project technical report no.43)
(Location: IWMI-HQ Call no: 631.7.8 G232 HAI Record No: H0154)
The most profitable use of resources on a typical Egyptian farm is analyzed in view of resource, institutional and government policies. The linear programming model of a farm management decision problem is based on an average sized farm found in a survey of 50 farms in Kafr El Shiekh. By solution of the model one can observe the interdependencies. Further, changes in the method of irrigation or in the government's system of water supply are evaluated with the model. Four sets of policy alternatives are examined. The base run reflects existing policies, a second option includes only administered prices. Additionally, a free market alternative is tested and finally, a free market coupled with a system to charge farmers for the delivery of water. Results show that existing policies do not greatly distort the optimal mix of enterprises but it is likely that farmers would have incentive to achieve higher crop yields under different price policies. As yields associated with higher commodity prices are achieved, farmer's incentive and ability to adopt improved water management practices would be enhanced.
11 de Datta, S. K.; Krupp, H. K.; Alverez, E. I.; Modgal, S. C. 1973. Water management practices in flooded tropical rice. In International Rice Research Institute, Water management in Philippine irrigation systems: Research and operations (pp. 1-18). Los Banos, Laguna, Philippines: International Rice Research Institute.
(Location: IWMI-HQ Call no: 631.7.6 G732 INT Record No: H06)
Experiments conducted for several cropping seasons on the montmorillonitic Maahas clay soil at the IRRI farm demonstrate that continual flooding is not essential for high grain yield but flooded rice can tolerate at least 15cmif the improved varieties are grown. Tall varieties like H-4 has less adaptability under wide range of water management conditions than semidwarfs like IR8. With adequate water supply, 5 to 7 cm of water is desirable on most soils for best weed and insect control with granular chemicals, forhigh nutrient availability, and for minimum losses of nutrients from fertilizer and soil. If rainfall does not provide supplemental water, irrigation intervalslonger than 8 days reduce grain yield under a rotational irrigation system. Varieties like IR5 that have a long growth duration were least sensitive to moisture stress imposed by long irrigation intervals. This is because IR5 will generally recover from high moisture stress for a short period or low moisture stress for a long period. An experiment with IR20 indicates that the furrow irrigation of nonpuddled soil does not provide more efficient water use in rice compared with rice grown on puddled lowland soil.
(Location: IWMI-HQ Call no: 631.7.1 G232 ELS Record No: H040)
(1.13 MB)
The EWUP conducted an irrigation research and development program from 1978 to 1984 in the Abu Raya area served by the Daqalt Canal in an effort to improve irrigation water management. Using an interdisciplinary effort, the program included the design, construction and operation of the Daqalt Canal system to deliver water to all farms in sufficient quantity at appropriate times to meet all water needs; to deliver water at an adequate and equitable flow rate and head and to minimize surface losses to drains. The original system was designed, constructed and operated under certain physical and operational assumptions that would minimize use of water while maximizing crop yields for all individual users. The report describes the physical characteristics of the existing system including water supply, canal structures, canal and mesqa surveys, soil conditions, crop patterns, water table levels, on-farm irrigation and water delivery requirements. The socio-economic characteristics of the existing system were also evaluated to assist in developing an equitable water user management program. The Daqalt Canal does not meet its original objectives due to water shortages, inadequate and inequitable flow rates and heads, and large surface losses to drains. These problems are caused by ineffective physical structures operation, conflicts existing with irrigation timing preferences, and poor canal maintenance. As such, the performance of the system falls short of that desired due to incorrect assumptions and improper management, and the entire water delivery system requires renovation within the context of the larger irrigation system. It is recommended that a complete hydraulic model of the existing Daqalt system should be developed under the constraint of available water levels in the Mit Yazid Canal, and the design re-evaluated in light of this model. The renovation process should continue, and water users themselves amalgamated into the design and operation of the water management plan.
13 Indian Institute of Management. 1983. Farmers participation in tank irrigation management: Implementation phase - Social survey. Bangalore, India: The Institute. v, 32 p.; 248 p.
(Location: IWMI-HQ Call no: 631.7.6.2 G635 IND Record No: H0165)
Vol 1 - Report; Vol 2 - Annexures - includes farmers participation in tank irrigation management in the Indiramma, Chickalingadahalli, Yadarlahalli and Mookanpalaya tanks.
14 Maurya, P. R.; Sachan, R. S. 1984. Large and small-scale irrigation systems in Nigeria: A comparative study. In M. J. Blackie, Ed., African Regional Symposium on Small Holder Irrigation, 5-7 September 1984 (pp. 273-286). London: Hydraulics Research Ltd.
(Location: IWMI-HQ Call no: 631.7.3 G100 BLA Record No: H0191)
15 Makato, C. J. A. 1984. Small holder rice irrigation schemes in Malawi: The role of the farmer in irrigated rice. In M. J. Blackie, Ed., African Regional Symposium on Small Holder Irrigation, 5-7 September 1984 (pp. 287-306). London: Hydraulics Research Ltd.
(Location: IWMI-HQ Call no: 631.7.3 G100 BLA Record No: H0190)
16 Padhi, G. N.; Suryavanshi, A. R. 1982. Evaluation of water distribution method of left Salawa distributary of upper Ganga Canal System. In Indian Water Resources Society, Workshop on Water Distribution Practices, July 2-3, 1982: Proceedings (pp. 23-34). Roorkee: Indian Water Resources Society.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 IND Record No: H0176)
17 Briggs, J. 1983. The use of repertory grid analysis in the study of farmers' choice of crops. In W. M. Adams and A. T. Grove, Eds., Irrigation in tropical Africa: Problems and problem solving (pp. 109-120). Cambridge: African Studies Centre.
(Location: IWMI-HQ Call no: 631.7.8 G100 ADA Record No: H0185)
18 Elumalai, G. 1982. Performance and appropriateness of the present irrigation systems to improve productivity. In Indian Water Resources Society, Workshop on Water Distribution Practices, July 2-3, 1982: Proceedings. Roorkee:Indian Water Resources Society. pp.69-80.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 IND Record No: H0172)
19 Ratnam, N. 1980. Methodology for watershed management: A study on the identification of watersheds and planning for agricultural development in rural areas. Bangalore, India: Indian Institute of Management. Centre for Agriculture and Rural Development. xii, 274 p.
(Location: IWMI-HQ Call no: 631.7.8 G232 RAT Record No: H0167)
20 Banda, M. 1984. A consideration of the consolidation stage: Siatwiinda pilot irrigation scheme experiences in Gwembe Valley, Zambia. In M. J. Blackie, Ed., African Regional Symposium on Small Holder Irrigation, 5-7 September 1984 (pp. 391-400). London: Hydraulics Research Ltd.
(Location: IWMI-HQ Call no: 631.7.3 G100 BLA Record No: H0204)
The economic history of most riverine and swampy communities does seem to suggest that perennial crop production is very much entrenched in their social economic fabric. But its potential has largely been underestimated. Thus,the introduction of irrigation technology tends to be seen as a new way of crop production. As such, intervention measures initially tend to be designed as pilot projects, so as to generate enough experience and knowledge before their widespread diffusion. However, experience with most community-oriented pilot projects seem to show that if the interventions are not based on the intended beneficiaries' own past experiences, the introduction of new technology tends to exacerbate the production risk of the participants. From the experiences in Gwembe Valley, Zambia, it is argued that irrigation interventions in the small holder farming sector have to be geared to the strengthening of the existing production virtues, as well as the weakening and elimination of the risks.
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