Your search found 11 records
1 Lee, T. S.; Najim, M. M. M.; Aminul, M. H. 2004. Estimating evapotranspiration of irrigated rice at the west coast of the Peninsular of Malaysia. Journal of Applied Irrigation Science, 39(1):103-117.
(Location: IWMI-HQ Call no: PER Record No: H034715)
2 Najim, M. M. M.; Lee, T. S.; Haque, M. A. 2005. Felcra paddy estate management decision support system: Part 1 – Design and development. Journal of Applied Irrigation Science, 40(2):231-245.
(Location: IWMI-HQ Call no: PER Record No: H038261)
3 Najim, M. M. M.; Lee, T. S.; Haque, M. A. 2005. Felcra paddy estate management decision support system: Part 2 – Capabilities and output. Journal of Applied Irrigation Science, 40(2):247-258.
Irrigation programs ; Decision support tools ; Models ; Irrigation canals ; Flow control ; Tillage ; Paddy fields ; Rice / Malaysia
(Location: IWMI-HQ Call no: PER Record No: H038262)
4 Haque, M. A.; Najim, M. M. M.; Lee, T. S. 2005. Evaluation of water use in a rice double cropping system in Malaysia. Tropical Agricultural Research, 17:104-113.
Rice ; Paddy fields ; Irrigated farming ; Irrigation programs ; Performance indexes ; Water use ; Drainage ; Models / Malaysia / Terengganu / Besut Irrigation Scheme
(Location: IWMI-HQ Call no: P 7597 Record No: H039197)
5 Jayakody, Priyantha; Raschid-Sally, Liqa; Abayawardana, Sarath; Najim, M. M. M.. 2006. Urban growth and wastewater agriculture: a study from Sri Lanka. In Fisher, J. (Ed.). Sustainable development of water resources, water supply and environmental sanitation: proceedings of the 32nd WEDC International Conference, Bandaranaike Memorial International Conference Hall, Colombo, Sri Lanka, 13 - 17 November 2006. Preprints. Leicestershire, UK: Water, Engineering and Development Centre (WEDC). pp.105-111.
Wastewater ; Water reuse ; Irrigated farming ; Rice ; Paddy fields ; Domestic water ; Urbanization ; Effluents ; Sewage ; Health hazards ; Surveys / Sri Lanka / Kurunegala / Kandy / Malwathu Oya / Anuradhapura / Kelani River
(Location: IWMI-HQ Call no: IWMI 631.7.5 G744 JAY, 333.91 G000 WAT Record No: H039718)
http://wedc.lboro.ac.uk/resources/conference/32/Jayakody.pdf
https://vlibrary.iwmi.org/pdf/H039718.pdf
https://vlibrary.iwmi.org/pdf/H039718.pdf
(0.40 MB) (408KB)
6 Rajapakshe, I. H.; Najim, M. M. M.. 2007. Water and nutrient balance in paddy field irrigated by wastewater during off (Yala) season in Kurunegala, Sri Lanka. Journal of Applied Irrigation Science, 42(1):77-91.
Rice ; Paddy fields ; Water quality ; Nitrogen ; Phosphorus ; Potassium ; Wastewater irrigation ; Irrigation canals ; Water balance / Sri Lanka / Kurunegala
(Location: IWMI HQ Call no: PER Record No: H040449)
7 Jayakody, Priyantha; Molle, Francois; Najim, M. M. M.. 2005. Deviation of planned water demand from actual on farm water usage and suggestions for improvements: A case study from Uda Walawe Irrigation Scheme, Sri Lanka. In Galagedara, L. W. (Ed.). Water resources research in Sri Lanka: Symposium Proceedings of the Water Professional’s Day 2005. Peradeniya, Sri Lanka: PGIA. pp.1-14.
Irrigation programs ; Irrigation requirements ; Water requirements ; Water use ; Water demand ; Irrigation canals ; Flumes ; Water allocation ; Planning ; Irrigation scheduling ; Rice ; Bananas ; Irrigation management / Sri Lanka / Uda Walawe Irrigation Scheme
(Location: IWMI HQ Call no: IWMI 631.7 G744 GAL Record No: H040701)
8 Umagiliyage, A. H. L.; Najim, M. M. M.; Hewavitharana, P. 2005. Hydraulic calibration of canal reaches and structures through simulation. In Galagedara, L. W. (Ed.). Water resources research in Sri Lanka: Symposium Proceedings of the Water Professional’s Day 2005. Peradeniya, Sri Lanka: PGIA. pp.15-26.
Irrigation canals ; Simulation models ; Calibration ; Hydraulics ; Flow control ; Weirs ; Gates / Sri Lanka / Ippologama
(Location: IWMI HQ Call no: IWMI 631.7 G744 GAL Record No: H040702)
9 Abeyrathne, B. G. A.; Najim, M. M. M.; Jayatissa, D. N. 2005. Development of a simple sprinkler system designing and pump selection expert system (SSSDPS Expert) In Galagedara, L. W. (Ed.). Water resources research in Sri Lanka: Symposium Proceedings of the Water Professional’s Day 2005. Peradeniya, Sri Lanka: PGIA. pp.39-51.
Sprinkler irrigation ; Pumps ; Design ; Decision support tools ; Models ; Expert systems / Sri Lanka
(Location: IWMI HQ Call no: IWMI 631.7 G744 DAY Record No: H040704)
10 Najim, M. M. M.; Abeywardana, S. C.; Jayakody, K. P. K.; Rambanda, M. 2006. Calibration of a venturi fertilizer injector for efficient micro irrigation. In Dayawansa, N. D. K. (Ed.). Water resources research in Sri Lanka: symposium proceedings of the Water Professional’s Day 2006, Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka, 1 October 2006. Peradeniya, Sri Lanka: University of Peradeniya. Postgraduate Institute of Agriculture (PGIA). pp.15-24.
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040721)
11 Udagedara, U. S. C.; Najim, M. M. M.. 2010. Potential to increase the area under paddy cultivation with domestic and municipal wastewater irrigation in Kurunegala District. In Evans, Alexandra; Jinapala, K. (Eds). Proceedings of the National Conference on Water, Food Security and Climate Change in Sri Lanka, BMICH, Colombo, Sri Lanka, 9-11 June 2009. Vol. 2. Water quality, environment and climate change. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.157-165.
(Location: IWMI HQ Call no: IWMI 631.7 G744 EVA Record No: H042868)
Use of domestic wastewater for agriculture was a traditional practice in Sri Lanka where leafy vegetables and medicinal plants were cultivated in backyards. The use of domestic and municipal wastewater could be an environmentally sound means of wastewater disposal and could reduce environmental pollution if utilized for paddy irrigation. This practice could also help to increase the economic productivity of the water and land. Therefore a study was conducted in selected Divisional Secretariat Divisions in Kurunegala District in order to explore the potential for land to be brought under paddy cultivation with the utilization of municipal and domestic wastewater. The quantity of wastewater generated was estimated based on the population and water consumption data. Data on the extent of paddy land under minor irrigation and rain-fed agriculture, potential cultivable land extent (known as asweddumized area), land area cultivated in maha (wet) and yala (dry) seasons, and the areas harvested were collected from the District Agriculture Department. It is noted that not all the available lands were cultivated and harvested in both the maha and yala seasons. The area of land that is not used for any crop production is higher in the yala season than in the maha season. In addition, only a part of the land area is harvested from the total area sown. Major reasons for crop failure are inadequate rainfall and shortage of supplementary irrigation water. The difference between the cultivable (asweddumized) extent and harvested extent shows the land that can potentially be brought under irrigation using municipal and domestic wastewater. The amount of land that can be so irrigated is much higher closer to the city where the storm water and other forms of wastewater are drained through common canal systems. Depending on the quantity and quality, and the availability of fresh irrigation water, municipal wastewater can be either diluted with irrigation water to meet the total irrigation water requirement, or can be used without any dilution. In addition to the increment of the land area under cultivation, there is a possibility of increasing the cropping intensity.
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