Your search found 87 records
1 Abbo, S. H. 1983. Theoretical and practical approach for the modelling of soil expansion and its interaction with structures built on expansive clay soils. In Sudan, Ministry of Irrigation, Proceedings of the Seminar on Expansive Clay Soil Problems in the Sudan, Wad Medani, 29th-31st January 1983 (pp 71-80). Wad Medani, Sudan: Ministry of Irrigation.
(Location: IWMI-PAK Call no: 631.7.2 G146 SUD Record No: H072)
(Location: IWMI-HQ Call no: 631.7.8 G584 PRO Record No: H0462)
(Location: IWMI-HQ Call no: 631.43 G000 MAR Record No: H01811)
(Location: IWMI-HQ Call no: PER Record No: H02830)
Solute distribution around a trickle source for three-dimensional steady state flow is studied in terms of an approximate analytic model. Ion and water uptake by the root system are taken into account. Moisture flow and ion concentration profiles are assumed to have hemispherical symmetry. The distributions are nearly constant near the source, with a sudden increase or decrease closer to the wetting front, depending on the ion balance. A simple criterion for the highest allowed concentration is developed. The calculated profiles are compared with the results of field measurements on potassium and nitrate ions.
5 Tanaka, I. 1976. Agro-ecological roles of irrigation in rice culture. In Japan. Ministry of Agriculture and Forestry, Tropical Agriculture Research Center, Symposium on Water Management in Rice Fields, August 1975. Ibaraki, Japan: The Ministry. pp.161-172. (Tropical agriculture research series no. 9)
(Location: IWMI-HQ Call no: 631.7 G570 JAP Record No: H02964)
6 IRRI. 1987. Physical measurements in flooded rice soils: The Japanese methodologies. Los Ba¤os, Laguna, Philippines: IRRI. 65p.
(Location: IWMI-HQ Call no: 631.7.2 G696 IRR Record No: H03175)
7 Ryan, J.; Musharrafieh, G.; Barsumian, A. 1980. Soil fertility characterization at the Agricultural Research and Education Center of the American University of Beirut. Beirut, Lebanon: American University of Beirut, Faculty of Agricultural and Food Sciences. 47 p. (Publication no. 64)
(Location: IWMI-HQ Call no: 631.7.2 G710 RYA Record No: H03389)
8 Honeycutt, C. W.; Heil, R. D. 1984. Consideration of various soil properties for the irrigation management of vertisols. Cairo, Egypt: Egypt Water Use and Management Project. 33p. (EWUP technical report no.73)
(Location: IWMI-HQ Call no: 631.7.2 G232 HON Record No: H02397)
(Location: IWMI-HQ Call no: PER Record No: H06225)
(0.54 MB)
10 Thirunavukkarasu, S. 1990. Percolation ponds. In Percolation ponds: Pre-workshop volume. Madras, India: Centre for Water Resources. pp.51-69.
(Location: IWMI-HQ Call no: 631.7.2 G635 PER Record No: H08675)
11 Katalin, K. H. 1990. Nitrogen migration in soils and water. In ICID, Fourteenth International Congress on Irrigation and Drainage, Rio de Janeiro, Brazil: Transactions. New Delhi, India: ICID. Vol.1A - Q42 (R1-R23):123-136.
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H08718)
12 Favrot, JC.; Bouzigues, R.; Longueval, C.; Chossat, JC.; Bourgeat, F. 1990. Structure du sol, drainage et environment role de la structure du sol sur le fonctionnement hydraulique et la qualit, des eaux d'un r,seau de drainage. [Soil structure, drainage and environment: Soil structure on hydraulic behavior and water quality of a drainage network]. In ICID, Fourteenth International Congress on Irrigation and Drainage, Rio de Janeiro, Brazil: Transactions. New Delhi, India: ICID. Vol.1B - Q42 (R24-R44):367-379.
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H08731)
(Location: IWMI-HQ Call no: PER Record No: H08829)
14 Proptopapas, A. L.; Bras, R. L. 1991. The one dimensional approximation for infiltration in heterogeneous soils. Water Resources Research, 27(6):1019-1027.
(Location: IWMI-HQ Call no: PER Record No: H08830)
15 Protopapas, A. L.; Bras, R. L. 1991. Analytical solutions for unsteady multidimensional infiltration in heterogeneous soils. Water Resources Research, 27(6):1029-1034.
(Location: IWMI-HQ Call no: PER Record No: H08831)
16 Philip, J. R. 1991. Hillslope infiltration: Divergent and convergent slopes. Water Resources Research, 27(6):1035-1040.
(Location: IWMI-HQ Call no: PER Record No: H08832)
17 Singh, H.; Bajwa, M. S. 1991. Effect of sodic irrigation and gypsum on the reclamation of sodic soils and growth of rice and wheat plants. Agricultural Water Management, 20(2):163-171.
(Location: IWMI-HQ Call no: PER Record No: H09044)
(Location: IWMI-HQ Call no: PER Record No: H09046)
19 Cauley, P. M. 1991. The soils of system "B": Some guidelines of their suitability, use and management of other crops. Pimburettawa, Sri Lanka: Development Alternatives Inc. 42p. + annexes. (MARD/MDS projects)
(Location: IWMI-HQ Call no: 631.4 G744 CAU Record No: H09465)
20 Loague, K. 1992. Using soil texture to estimate saturated hydraulic conductivity and the impact on rainfall-runoff simulations. Water Resources Bulletin, 28(4):687-693.
(Location: IWMI-HQ Call no: PER Record No: H011989)
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