Sivapalan, P.2015-08-052015-08-051992Tea Bulletin, 12(1/2):p.3-7https://dl-tri.nsf.gov.lk/handle/1/1586Environmental SciencesKotmale reservoirSoil erosionManual weed controlEutrophicationSoil fertilityPhosphatesEutrophication of the Kotmale reservoirArticle