Jayasinghe, C.K.Parker, C.A.Kulasooriya, A.2013-05-082013-05-081986Journal of the Rubber Research Institute of Sri Lanka66pp.1-8https://dl-rri.nsf.gov.lk/handle/1/1697AgricultureRhizobiaPueraria phaseoloidesBradyrhizobiumCowpeaCover cropsLegumesMicroorganismsNative root-nodule bacterial populations in rubber growing soils and forest soilsA