Handawela, J.2014-12-162014-12-161987-88Journal of the Soil Science Society of Sri Lanka, 5:p.54-69https://dl.nsf.gov.lk/handle/1/16236AgricultureSoil fertilitySoil salinityFertilizersSoil analysisOrganic manureFarmingFertilizer management in alfisols of Sri LankaArticle