De Silva, M.S.D.L.Jayasekera, A.P.D.A.Seneviratne, G.Prematunge, E.W.T.P.Wijesekera, S.N.Tea Research Institute; TRI, Sri Lanka2016-04-182016-04-182013Proceedings of the 226th Experiments and Extension Forum, 1st February 2013, TRI, Talawakelle, 226:p.20-31https://dl-tri.nsf.gov.lk/handle/1/1916Organic fertilizerBiofilmed biofertilizerSoil fertilityOrganic carboncation exchange capacitySynthertic fertilizer