Vidhana Arachchi, L.P.Nor, Y.M.2014-07-012014-07-011996The Annual General Meeting of the Institute of Biology, SriLanka. Colombo, 1996https://dl-cri.nsf.gov.lk//handle/1/4084enSoilsEstimation efficiency of oil palm seedlings (Elaeis guineensis)in palm oil sludge/urea amended soilOther