Wijewardena, J.D.H.2014-12-162014-12-162001Journal of the Soil Science Society of Sri Lanka, 13:p.23-27https://dl.nsf.gov.lk/handle/1/16325AgricultureVegetable crops cultivationPoultry manure applicationPlant nutrientsSulphur applicationEffect of sulphur and poultry manure application to vagetable cropsArticle