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1 Chang, M. H.; Mirbahar, M. B.; Marri, M. K. 1993. Comparative effect of organic, inorganic and biological reclamation of saline sodic soils under tile drainage system. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.IV. - Drainage and water table control. pp.1-7.
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIMI Record No: H012894)
To reclaim saline-sodic soils, gypsum as inorganic, press mud as organic and kallar grass as biological material were compared in different combinations. Watertable was controlled by the installation of tile drainage. Gypsum at 50% requirement of soil, irrespective of its combination, proved more successful in reclamation of saline-sodic soils having ECe, pH, SAR and ESP values of 13.3, 8.8, 33.0 and 33.6 respectively with increase in yield of rice and berseem crops. Press mud and kallar grass also helped to lower the sodicity problem.
2 Mirbahar, M. B.; Marri, M. K.; Chang, M. H. 1993. Collaborative tile drainage system-key to solve waterlogging and salinity problems. In Government of Pakistan-USAID Irrigation Systems Management Research Project; IIMI, Proceedings: Irrigation Systems Management Research Symposium, Lahore, 11-13 April 1993. Vol.IV. - Drainage and water table control. pp.9-25.
(Location: IWMI-HQ Call no: IIMI 631.7.8 G730 IIMI Record No: H012895)
The widespread problem of waterlogging and salinity in irrigated areas of Pakistan has been averted by the implementation of the Salinity Control and Reclamation Projects (SCARPs). Although these projects have attained some degree of success, serious problems in their operation and maintenance occur due to the isolated approach in implementing and operating SCARPs. Farmers are not involved in the various stages of the projects, from planning to implementation. The Drainage and Reclamation Institute of Pakistan (DRIP) initiated a concept of collaborative drainage and cost sharing with farmers. DRIP has designed and constructed nine tile drainage units on farmer fields, where the farmers shared 30% to 60% of the capital cost and full operational and maintenance costs. DRIP conducts research to evolve technologies for watertable control, soil salinity, reuse of drainage effluent, farm output in tile drainage units. This paper discusses the results from the performance study of three tile drainage units completed with cost sharing and collaboration of farmers. Hydrologic, crop, and soil salinity monitoring indicate desired watertable control, a fivefold increase in yield of wheat, 30% in mango, and up to 200% in cropped area. On the basis of these encouraging results and the increasing interest of many farmers, a project proposal for 6,000 hectares under collaborative drainage was prepared by DRIP and submitted for consideration with the Planning and Development Department, Government of Sindh.
3 Mirbahar, M. B.; Sipraw, A. M. 2000. On-farm tile drainage with farmers participation: Past experience and future strategies. In Water and Power Development Authority (WAPDA); Mehran University of Engineering and Technology (MUET); International Waterlogging and Salinity Research Institute (IWASRI); International Irrigation Management Institute (IIMI). Proceedings, National Seminar on Drainage in Pakistan, Jamshoro, Pakistan, 16-18 August 2000. [Vol. 1] Lahore, Pakistan: Water and Power Development Authority (WAPDA); Sindh, Pakistan: Mehran University of Engineering and Technology (MUET); Lahore, Pakistan: International Waterlogging and Salinity Research Institute (IWASRI); Lahore, Pakistan: International Irrigation Management Institute (IIMI). pp.1-14.
Drainage ; Farmer participation ; Waterlogging ; Salinity ; Water table ; Tube wells ; Performance evaluation ; Operations ; Maintenance costs ; Effluents ; Water quality ; Irrigation water ; Economic aspects / Pakistan / Indus
(Location: IWMI-HQ Call no: IIMI 631.62 G730 IIM Record No: H027109)
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