Your search found 31 records
1 Ochs, W. J.; Willardson, L. S.; Camp, R. Jr.; Donnan, W.; Winger, R. J. Jr.; Johnston, W. R. 1983. Drainage requirements and systems. In Jensen, M. E. (Ed.), Design and operation of farm irrigation systems. St. Joseph, MI, USA: ASAE. pp.235-277. (ASAE monograph no. 3)
Soil water relations ; Subsurface drainage ; Seepage ; Water table
(Location: IWMI-HQ Call no: 631.7.1 G000 JEN Record No: H03204)
2 Willardson, L. S.; Oosterhuis, D. M.; Johnson, D. A. 1987. Sprinkler selection for line-source irrigation systems. Irrigation Science, 8:65-76.
Sprinkler irrigation ; Computer techniques ; Computer software
(Location: IWMI-HQ Call no: P 1184 Record No: H05038)
3 Latif, M.; Willardson, L. S.. 1990. Modeling soil profiles salt distribution for conjunctive use irrigation. In ICID, Fourteenth International Congress on Irrigation and Drainage, Rio de Janeiro, Brazil: Transactions. New Delhi, India: ICID. Vol.1B - Q42 (R24-R44):647-662.
Conjunctive use ; Soil properties ; Groundwater development
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H08746)
4 Soares, A. A.; Willardson, L. S.; Keller, J. 1991. Surface slope effects on sprinkler uniformity. Journal of Irrigation and Drainage Engineering, 117(6):870-880.
Sprinkler irrigation ; Water distribution ; Computer techniques
(Location: IWMI-HQ Call no: PER Record No: H09485)
5 Kandil, H. M.; Willardson, L. S.. 1992. Relating crop-yield response to water table fluctuations. Journal of Irrigation and Drainage Engineering, 118(1):113-121.
Crop yield ; Plant growth ; Water table
(Location: IWMI-HQ Call no: PER Record No: H09914)
6 Roy, K. C.; Willardson, L. S.; Clyde, C. G. 1992. Improved irrigation management using unconfined aquifer pumping. ICID Bulletin, 41(1):1-16.
Groundwater extraction ; Aquifers ; Water use ; Pumping
(Location: IWMI-HQ Call no: PER Record No: H011227)
7 Roy, K. C.; Willardson, L. S.; Clyde, C. G. 1992. Water management benefits from pumping shallow unconfined groundwater. ICID Bulletin, 41(1):17-26.
Water management ; Pumping ; Groundwater extraction ; Shallow tube wells / Bangladesh
(Location: IWMI-HQ Call no: PER Record No: H011228)
8 Willardson, L. S.. 1985. Basin-wide impacts of irrigation efficiency. Journal of Irrigation and Drainage Engineering, 111(3):241-246.
Irrigation efficiency ; Water quality ; Basin irrigation
(Location: IWMI-HQ Call no: P 2327 Record No: H011135)
9 Bondurant, J. A.; Willardson, L. S.. Recirculating farm irrigation systems. US. Department of Agriculture. Agricultural Research Service. pp.243-256.
Irrigation systems ; Water supply / USA / Idaho
(Location: IWMI-HQ Call no: P 2330 Record No: H011138)
10 Willardson, L. S.. 1972. Attainable irrigation efficiencies. Journal of the Irrigation and Drainage Division. Proceedings of the American Society of Civil Engineers, 98(IR2):239-246.
Irrigation efficiency ; Water distribution / USA
(Location: IWMI-HQ Call no: P 2331 Record No: H011139)
11 Taylor, W. R.; Willardson, L. S.. 1972. Target grade control for trenching machines. Reprint from the Proceedings of the National Drainage Symposium, 1972. pp.47-49.
Subsurface drainage ; Salinity ; Irrigation equipment / USA
(Location: IWMI-HQ Call no: P 2402 Record No: H011281)
12 Willardson, L. S.; Meek, B. D.; Huber, M. J. 1972. A flow path ground water sampler. Reprinted from the Soil Science Society of America Proceedings. 36(6):965-966.
Groundwater ; Flow channels ; Water quality / USA
(Location: IWMI-HQ Call no: P 2402 Record No: H011282)
A sampling system is described that enables collection of water samples from different flow paths in the groundwater system around a tile drain. The sampler can be installed as a regular part of a tile drainage system.
13 Willardson, L. S.; Ertsgaard, B. L.; Ehlig, C. F.; MacKenzie, A. J. 1974. High rate sprinkling of a low intake soil. Transactions of the ASAE, 17(2):280-281.
Sprinkler irrigation ; Irrigation equipment ; Soil moisture / USA
(Location: IWMI-HQ Call no: P 2402 Record No: H011283)
14 Samani, Z. A.; Walker, W. R.; Jeppson, R. W.; Willardson, L. S.. 1985. Numerical solution for unsteady two-dimensional infiltration in irrigation furrows. Transactions of the ASAE, 28(4):1186-1190.
Infiltration ; Furrow irrigation ; Mathematical models ; Simulation
(Location: IWMI-HQ Call no: P 2402 Record No: H011284)
15 Samani, Z. A.; Walker, W. R.; Willardson, L. S. 1985. Infiltration under surge flow irrigation. Transactions of the ASAE, 28(5):1539-1542.
Infiltration ; Gravity flow ; Computer techniques ; Simulation
(Location: IWMI-HQ Call no: P 2402 Record No: H011285)
16 Kitani, K.; Willardson, L. S.. 1984. Hydraulic ram use for sprinkle irrigation. Transactions of the ASAE, 27(6):1788-1791.
Sprinkler irrigation ; Hydraulic structures ; Irrigation equipment ; Design
(Location: IWMI-HQ Call no: P 2402 Record No: H011286)
17 Willardson, L. S.. 1992. An algorithm for conjunctive use of saline groundwater. In Symposium on Land Drainage for Salinity Control in Arid and Semi-arid Regions, Cairo, Egypt, 25 February - 2 March 1990. Vol.3: Presented papers. Session III - Session IV - Session V. Cairo, Egypt: Ministry of Public Works and Water Resources. pp.209-218.
Conjunctive use ; Water reuse ; Groundwater ; Salinity ; Water table
(Location: IWMI-HQ Call no: 631.7.2 G000 SYM Record No: H011344)
18 Willardson, L. S.. 1993. Advances in drainage research. In Tyagi, N. K.; Kamra, S. K.; Minhas, P. S.; Singh, N. T. (Eds.), Irrigation in saline environment: Key management issues - Proceedings Scientific Meeting-cum-Workshop on 'Sustainable Irrigation in Saline Environment', Karnal, India, 17-19 February 1993. pp.85-89.
Research ; Drainage ; Environmental effects
(Location: IWMI-HQ Call no: 631.7.2 G635 TYA Record No: H012795)
19 Willardson, L. S.; Anderson, B. H. 1993. Local water, local control. Civil Engineering, 63(7):46-49.
Water management ; Pricing ; Water rates ; Economic aspects ; Performance evaluation ; Irrigation systems / USA / Colorado
(Location: IWMI-HQ Call no: P 3627 Record No: H012637)
20 Qureshi, Z. A.; Willardson, L. S.. 1994. Reducing risk of crop failure by using micro-catchment water harvesting in arid areas. ICID Bulletin, 43(1):13-22.
Water harvesting ; Crop yield ; Arid zones ; Soil moisture / Pakistan / Balochistan
(Location: IWMI-HQ Call no: PER Record No: H015638)
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