Kodikara, K.M.S.Ramanayake, R.M.R.K.Somachandra, K.P.Yatagama, S.M.K.G.Udawatte, C.P.2021-09-012021-09-012015Annals of the Sri Lanka Department of Agriculture, 17:p.10-13https://dl-doa.nsf.gov.lk/handle/1/3350SoilPhosphorus FertilizerSoilUp Country Intermediate ZonePhosphorus availabilityAn appropriate extraction method to determine plant available phosphorus in agricultural soils of the up country intermediate zone of Sri LankaArticle