Wijesundara, W.M.G.D.Nandasena, K.A.Jayakody, A.N.2014-11-122014-11-122013Tropical Agricultural Research, 24(3):p.279-288https://dl.nsf.gov.lk/handle/1/12454Environmental SciencesAgricultureTank cascade systemWater qualityHeavy metalsCadmiumPlant nutritionSeasonal variationSpatial variationIrrigation waterSeasonal and spatial variations of N, P, K and Cd concentrations in water of the Mahakanumulla cascade in the dry zone of Sri LankaA