Your search found 3 records
1 Yapa, P. A. J.. 1992. Water hyacinth - The silent purifier of nature's water bodies. Vidurava, 14(2):1-3.
Aquatic weeds ; Water quality ; Water pollution ; Pollution control / Sri Lanka
(Location: IWMI-HQ Call no: P 5165 Record No: H024545)
2 Gamage, N. S.; Yapa, P. A. J.. 2001. Use of water hyacinth [Eichhornia crassipes (MART) solms] in treatment systems for textile mill effluents: A case study. Journal of the National Science Foundation of Sri Lanka, 29(1-2):15-28.
Wastewater ; Effluents ; Water pollution / Sri Lanka / Veyangoda
(Location: IWMI-HQ Call no: P 6562 Record No: H033025)
https://vlibrary.iwmi.org/pdf/H_33025.pdf
3 Keerthisena, R. S. K.; Mapa, R. B.; Yapa, P. A. J.. 2001. Soil water dynamics in alley cropping systems in the dry zone of Sri Lanka. Tropical Agricultural Research, 13:123-133.
Cropping systems ; Soil water ; Soil properties / Sri Lanka
(Location: IWMI-HQ Call no: P 7670 Record No: H039424)
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