Your search found 3 records
1 Litwiller, K. E.; El-Kady, M.; Gates, T. K.; Hanson, E. G.. 1984. The relation between irrigation water management and high water tables in Egypt. Cairo, Egypt: Egypt Water Use and Management Project. x, 83p. (EWUP technical report no.61)
Evapotranspiration ; Irrigation practices ; Percolation ; Water management ; Canals ; Drainage ; Maintenance / Egypt
(Location: IWMI-HQ Call no: 631.7.1 G232 LIT Record No: H0157)
(1.27 MB)
High water table levels presenting hazards to crop growth were measured at field sites in upper, middle, and lower Egypt. Water table contribution to evapotranspiration was significant at each site. A water balance model of the water table aquifer was used to predict the effect of various interventions on water table levels. Desirable lower water table levels could not be maintained through on-farm irrigation efficiency improvement including lining of on-farm channels while using surface irrigation methods. Branch, distributary, and private canal lining would have negligible effect on water table levels. Corresponding increases in required water deliveries would be expected.
2 Hanson, E. G.; El-Kady, M.; Litwiller, K. E.; Early, A. C. 1984. Impact of turnout size and condition on water management on farms. Cairo: Egypt Water Use and Management Project. vi, 29p. (EWUP technical report no.71)
(Location: IWMI-HQ Call no: 631.7.6.2 G232 HAN Record No: H033)
The following report describes the legal irrigation throughout turnouts to mesgas and reviews the design assumptions, legal implications and current utility of the existing methods in Egypt. The legal limitations currently imposed upon the turnouts, based on specific site measurements, are presented, together with the responses from the Ministry of Irrigation and farmers to the inadequacies of the current turnouts. Data collected from the field sites indicates the necessity of increasing the size of turnouts in accordance with irrigation demands for the season and crops grown throughout Egypt. The recommended larger capacity turnouts with adjustable gates includes the design modification requirements of modified inlet shapes and provision for trash guards. These larger gated turnouts will require an irrigation technician to assume the responsibility of the current gatekeeper function and to interface with the farmers regarding their irrigating scheduling. In addition to recommendations regarding closer management between the irrigation technician and the farmers, it is suggested that training centers be established to assist in the development of water distribution management methods between the irrigation engineers and the water user associations.
3 Sammis, T. W.; Weeks, D. L.; Hanson, E. G.. 1979. Influence of irrigation methods on salt accumulation in row crops. Transactions of the ASAE, 22(4):791-796.
Irrigation practices ; Crops ; Plant growth ; Soil salinity ; Sprinkler irrigation ; Subsurface irrigation ; Drip irrigation ; Furrow irrigation ; Soil water ; Water potential / USA / New Mexico
(Location: IWMI-HQ Call no: P 471 Record No: H022185)
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