Your search found 102 records
(Location: IWMI-HQ Call no: IIMI 631.7.1 G752 DRO Record No: H024938)
2 Taddesse, G.; McCornick, Peter G.; Peden, D. 2004. Economic importance and environmental challenges of the Awash River Basin to Ethiopia. In Proceedings of Water Rights and Related Water Supply Issues, Water Management Conference, United States Committee on Irrigation and Drainage, Salt Lake City, Utah, USA, 13-16 October 2004. pp.257-268.
(Location: IWMI-HQ Call no: IWMI 333.91 G136 TAD Record No: H038822)
3 Namara, Regassa E.; Horowitz, L.; Nyamadi, B.; Barry, Boubacar. 2011. Irrigation development in Ghana: past experiences, emerging opportunities, and future directions. Accra, Ghana: International Food Policy Research Institute (IFPRI), Ghana Strategy Support Program (GSSP). 43p. (GSSP Working Paper 0027)
(Location: IWMI HQ Call no: e-copy only Record No: H043830)
(0.77 MB) (796 KB)
(Location: IWMI HQ Call no: IWMI Record No: H044123)
(1.08MB)
Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains can be made by raising the frontier of the traditional systems and increasing the efficiency of the modern systems. Among the production constraints studied were land preparation, soil fertility, weed control, pests and diseases, soil erosion, input access and moisture deficiency. The most significant constraints on the irrigated systems were input access and moisture deficiency.
(Location: IWMI HQ Call no: IWMI Record No: H044862)
(0.45 MB)
(Location: IWMI HQ Call no: IWMI Record No: H044866)
(2.48 MB)
7 Das, Anup K.; Lenka, S.; Mohan, Kadiri; Kuppannan, Palanisami. 2012. Irrigation scenario and prospects of micro-irrigation in Orissa [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.152-169.
(Location: IWMI HQ Call no: IWMI Record No: H044871)
(2.44 MB)
8 Chandrasekaran, M.; Kumar, D. S. 2012. Micro-irrigation: economics and outreach in Tamil Nadu [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.73-93.
(Location: IWMI HQ Call no: IWMI Record No: H044867)
9 Devi, P. I.; Shanmughasundaram; Prema, A. 2012. Micro-irrigation: economics and outreach in Kerala. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.73-93.
(Location: IWMI HQ Call no: IWMI Record No: H044868)
10 Narayanamoorthy, A. 2012. Drip method of irrigation in Maharashtra: status, economics and outreach. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.120-139.
(Location: IWMI HQ Call no: IWMI Record No: H044869)
11 Maheta, H. Y.; Bharodia, C. R.; Khunt, K. A. 2012. Micro-irrigation: economics and outreach in Gujarat State [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.140-151.
(Location: IWMI HQ Call no: IWMI Record No: H044870)
12 Singh, N. P.; Srivastava, S. K. 2012. Micro-irrigation: economics and outreach in Uttar Pradesh [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.170-184.
(Location: IWMI HQ Call no: IWMI Record No: H044872)
13 Singh, D. R.; Kumar, S.; Sivaramane, N. 2012. Micro-irrigation: economics and outreach in Rajasthan [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.185-211.
(Location: IWMI HQ Call no: IWMI Record No: H044873)
14 Aggarwal, R.; Singh, K. G. 2012. Micro-irrigation: economics and outreach in Punjab. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.212-225.
(Location: IWMI HQ Call no: IWMI Record No: H044874)
15 Ahuja, U.; Singh, R.; Joshi, P. K.; Nanwani, N. 2012. Micro-irrigation: economics and outreach in Haryana. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.226-241.
(Location: IWMI HQ Call no: IWMI Record No: H044875)
16 Kumar, V.; Thakur, S.; Lal, H. 2012. Micro-irrigation: economics and outreach in Himachal Pradesh [India]. In Palanisami, Kuppannan; Raman, S.; Mohan, Kadiri (Eds.). Micro-irrigation: economics and outreach. New Delhi, India: Macmillan. pp.242-257.
(Location: IWMI HQ Call no: IWMI Record No: H044876)
(Location: IWMI HQ Call no: IWMI Record No: H045170)
(3.65 MB)
18 Brahmachari, M.; Dave, S. 2012. Whose water is it anyway?: evolving rights over canal water - the case of Guhai Irrigation System in Gujarat [India]. IWMI-Tata Water Policy Research Highlight, 19. 9p.
(Location: IWMI HQ Call no: e-copy only Record No: H045280)
(321.9KB)
(Location: IWMI HQ Call no: PER Record No: H045473)
(1.51 MB) (1.51MB)
This paper provides the methodology and results of a cross-scale diagnostic performance assessment program of the irrigation water management in the old lands of the Nile Delta of Egypt. The analysis was done at three levels; main canal level, branch canals level and on-farm level of the Meet Yazid command (82,740 ha) for the year 2008–2009 to highlight areas for improvement. At the main canal level the annual average percentage of irrigation water returning to drains and groundwater was 53% of the total water supplied. Since Meet Yazid lies at tail end of the delta, and there is groundwater salinity, opportunities for reuse are increasingly limited moving north to Lake Burullus. This would indicate opportunities for real water savings. The results of monthly relative water supply of the main canal indicated mismatch between demand and supply especially during the winter months, and when supply is low farmers do reuse drainage or groundwater. Also, the assessment of the three branch canals showed non-uniformity of water distribution and mismatch between demand and supply even when comparing improved and non-improved canals. At the on-farm level in paddy fields, the amount of irrigation flows to drains and saline sinks varied from 0.46 to 0.71 of inflow. In spite of these values of non-uniformity and low depleted fraction, the relative evapotranspiration (ratio of actual to potential) evaporation was uniformly high, indicating most crops of most farmers were not water stressed, which is also confirmed by the high yield values. The average values of productivity per unit water depleted by ETact were 1.04 and 1.05 kg/m 3 for rice and wheat fields, respectively, with yields of rice and wheat at 8 and 6 t per ha respectively. On farm and tertiary improvements alone will not yield real water savings, as excess water in the main canal and drains will continue to flow out of the system. Rather the focus should first be on supplies to the main canal, accompanied by more precise on farm and water delivery practices at branch and tertiary levels, and ensuring that environmental flows are met. There is an added advantage of focusing on this tail end region of Egypt that this response would lessen vulnerability to reuse of polluted and saline water.
(Location: IWMI HQ Call no: e-copy only Record No: H045495)
(301.6KB)
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