De Silva, S.H.S.A.Chandrapala, A.G.Jayalath, H.A.P.2021-09-242021-09-242005ASDA - Annals of the Sri Lanka Dept. of Agriculture, 7:p.87-94https://dl.nsf.gov.lk/handle/1/25360AgricultureOrganic manure evaluationSoil propertiesPlant growthCrop yieldRice nutrientsCattle manureCompostNPKPoultry manureStrawCrop rotationEvaluation of different organic manures on soil properties, growth and yield of rice and maize under rice/maize crop rotationArticle