Liyanage, L.V.K.Jayasundara, H.P.S.2014-06-032014-06-031987Paper presented at the workshop on N-fixation and soil fertilityat the Postgraduate Institute of Agriculture, Sri Lanka. Colombo,1987:p...https://dl-cri.nsf.gov.lk//handle/1/3255Cultural PracticesSoil improvementSoil fertilityPotential for use of nitrogen fixing trees in coconut plantations