Sivapalan, P.2015-08-052015-08-051992Tea Bulletin, 12(1/2):p.3-7https://dl.nsf.gov.lk/handle/1/19827Environmental SciencesKotmale reservoirSoil erosionManual weed controlEutrophicationSoil fertilityPhosphatesEutrophication of the Kotmale reservoirArticle