Walewela, N.Weerasooriya, R.Nanayakkara, N.Jayarathne, L.Indrarathna, S.P.Bandara, A.2016-05-062016-05-062011Proceedings of the 10th International Conference of the East and Southeast Asia Federation of Soil Science Societies: Soil, A Precious Natural Resource: Agricultural Ecosystems, Environmental Health and Climate Change:p.233-234https://dl-ifs.nsf.gov.lk/handle/1/1255Soil ScienceConference Paper