Wanniarachchi, S.D.R.Jayawickrama, H.D.2014-12-162014-12-162004Journal of the Soil Science Society of Sri Lanka, 16:p.55-61https://dl.nsf.gov.lk/handle/1/16295AgricultureOrganic manure applicationSweet potato yieldSoil nutrient levelsAlluvial soilEffect of continuous application of organic manure on sweet potato yield and nutrient build up of an alluvial soilArticle