Weerahewa, J.Keerthisinghe, G.2014-12-162014-12-161987-88Journal of the Soil Science Society of Sri Lanka, 5:p.70-79https://dl.nsf.gov.lk/handle/1/16237AgricultureAlfisolsSoil propertiesDry matter productionOryza sativaPotassium-magnesium interactions affecting nutrient uptake by rice seedlingsArticle