Wimaladasa, G.D.Sinclair, A.H.2015-06-192015-06-191988Sri Lanka Journal of Tea Science57(2)pp.73-82https://dl.nsf.gov.lk/handle/1/19500AgriculturePotassium concentrationSoil nutrientRyegrassSoil solutionNitrificationAssessment of soil potassium and its uptake by ryegrassArticle