Your search found 131 records
(Location: IWMI-HQ Call no: 631.7.2 G232 LIT Record No: H037)
Twenty-one cylinder infiltration tests were conducted during irrigation of wheat on the shrinking/swelling vertisol soils of Kafr El-Sheikh, Egypt. Infiltration rates decreased rapidly from 720 mm/ hr for the first minute to 7.2 mm/hr at 2 hours elapsed time, with 1/3 of the tests showing soil sealing. In the majority of tests a well-defined two phase cumulative infiltration curve was determined. Significant correlations of antecedent soil moisture content in the 0-100 mm and 0-200 mm soil depth at the phase change, and average infiltration rate during the first phase were found. The first phase of infiltration was considered to represent flow of water through the soil macropores in the drier upper layer and water through the soil macropores. The second phase represented vertical flow into the wetter lower soil layers and filling of the finite storage space above the high water table. The analysis indicated a design application depth for wheat of not less than 120 mm for the first irrigation and 55 mm for subsequent irrigations under prevailing Abu Raya irrigation practices. Good water distribution across the field was facilitated by low long-term infiltration rates and high water table conditions. With the low second phase infiltration rates, water ponded in field depressions for prolonged periods could be detrimental to crops and requires provision for surface drainage. Precision land levelling would reduce this hazard.
2 Chaudhary, M. A.; Ashraf, M. M. 1981. An economic analysis of level and structure of irrigation water charges. Islamabad, Pakistan: Pakistan Institute of Development Economics. xii, 286p.
(Location: IWMI-HQ Call no: 631.7.4 G730 CHA Record No: H0718)
3 Rayej, M.; Wallender, W. W. 1987. Furrow model with specified space intervals. Journal of Irrigation and Drainage Engineering, 113(4):536-548.
(Location: IWMI-HQ Call no: PER Record No: H03674)
4 Pillsbury, A. 1966. Drainage studies in the San Joaquin valley of California. A paper presented at the meeting of the California Irrigation Institute Fresno, California, 25 January 1966. 9p.
(Location: IWMI-HQ Call no: P 201 Record No: H04195)
(Location: IWMI-HQ Call no: 631.7.6 G635 LOU Record No: H05603)
6 Ah Koon, P. D.; Gregory, P. J.; Bell, J. P. 1990. Influence of drip irrigation emission rate on distribution and drainage of water beneath a sugar cane and a fallow plot. Agricultural Water Management, 17(1-3):267-282.
(Location: IWMI-HQ Call no: PER Record No: H06219)
7 Booth, D. B. 1990. Stream-channel incision following drainage-basin urbanization. Water Resources Bulletin, 26(3):407-417.
(Location: IWMI-HQ Call no: PER Record No: H06451)
8 Merriam, J. L.; Burt, C. M. 1990. Alleviation on surface and subsurface drainage disposal problems by improved delivery schedule. Paper presented at the USCID Meeting, 14-16 September 1988, San Diego, California.
(Location: IWMI-HQ Call no: P 138 Record No: H06503)
9 Hsu, R.; Liu, C. 1990. Use of parameter estimation in determining soil hydraulic properties from unsaturated transient flow. Water Resources Management, 4(1):1-19.
(Location: IWMI-HQ Call no: PER Record No: H06526)
10 Arar, A. 1971. Irrigation and drainage in relation to salinity and waterlogging. In Salinity Seminar Baghdad: Report of Regional Seminar on Methods of Amelioration of Saline and Waterlogged Soils, Baghdad, Iraq, 5-14 December 1970. Rome, Italy: FAO. pp.86-111.
(Location: IWMI-HQ Call no: 631.7.2 G000 SAL Record No: H06580)
11 Dedrick, A. R. 1989. Surface-drained level-basin systems. In Rydzewski, J. R.; Ward, C. F. (Eds.) Irrigation theory and practice. Proceedings of the International Conference, University of Southampton, 12-15 September. London: Pentech Press. pp.566-575.
(Location: IWMI-HQ Call no: 631.7 G000 RYD Record No: H07544)
The management of surface-drained level basins, where a portion of the initially applied water is drained out from the inlet end of the irrigated basin, is reviewed. Design procedures regarding basin and channel layout, and land leveling are presented. Drainage is made possible by properly configuring of an earthen water supply channel relative to the basin surface. The proportion of drainable water from furrows (ratio of the volume drained from a furrow to the volume stored in the furrow at time of irrigation cutoff) ranged from 25% to 45% depending on the furrow length. Such drainage quantities would result in increased potential application efficiency. The utilization of the surface-drained level basin systems for rice production in rotation with other field crops is discussed.
12 Singh, O. P.; Maraviya, R. B. 1990. Design criteria for sub-surface drainage systems in monsoon type of climatic conditions. In Tyagi, N. K.; Joshi, P. K.; Gupta, R. K.; Singh. N. T. (Eds.) Management of irrigation system: Papers from the National Symposium on Management of Irrigation System, Karnal, India February 24-27 1988. Karnal, India: Central Soil Salinity Research Institute. pp.169-176.
(Location: IWMI-HQ Call no: 631.7 G635 TYA Record No: H08207)
13 Armstrong, A. S. B.; Pearce, G. R.; El-Quosy, D. E. D. 1991. Measuring the effects on Nile delta soil of irrigation with drainage water. In Woolridge, R. (Ed.) Techniques for environmentally sound water resources development: Papers presented to the African Regional Symposium held in Alexandria, Egypt, 17-19 February 1991. London, UK: Pentech Press. pp.34-49.
(Location: IWMI-HQ Call no: 333.91 G000 WOO Record No: H08243)
14 Murashko, A. I. 1990. Vertical drainage in the humid zone. ICID Bulletin, 39(1):26-38.
(Location: IWMI-HQ Call no: PER Record No: H08650)
15 Quosy, D. E. D. E. 1990. Drainage water monitoring in the Nile Delta. In ICID, Fourteenth International Congress on Irrigation and Drainage, Rio de Janeiro, Brazil: Transactions. New Delhi, India: ICID. Vol.1B - Q42 (R24-R44):595-611.
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H08744)
(Location: IWMI-HQ Call no: PER Record No: H09046)
17 Fipps, G.; Skaggs, R. W. 1991. Simple methods for predicting flow to drains. Journal of Irrigation and Drainage Engineering, 117(6):881-896.
(Location: IWMI-HQ Call no: PER Record No: H09486)
(Location: IWMI-HQ Call no: PER Record No: H09970)
19 Day, R. W. 1992. Irrigation, drainage and landscaping for expansive soil. Journal of Irrigation and Drainage Engineering, 118(2):285-290.
(Location: IWMI-HQ Call no: PER Record No: H010167)
20 Islam, M. N.; Ghani, M. A.; Islam, M. J.; Mondal, M. K.; Islam, M. N.; Bhuiyan, S. I. 1991. Scope of reuse of drainage water in the Ganges-Kobadak Irrigation Project 1. In Workshop on Applied Research for Increasing Irrigation Effectiveness and Crop Production, BARC, Farmgate, Dhaka, 8-9 October 1991. 15p.
(Location: IWMI-HQ Call no: 631.7.2 G000 WOR Record No: H010182)
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