2014-04-222014-04-221991https://dl-rri.nsf.gov.lk/handle/1/2161164PotassiumMagnesiumNutritionMineral compositionHevea brasiliensisGrowthYieldEffects of potassium and magnesium nutrition on growth yield and mineral composition of Hevea brasiliensisThesisMPhil4843University of Peradeniya