Liyanage, I.2012-07-312012-07-311985Bulletin of the Rubber Research Institute of Sri Lanka20pp.11-15https://dl.nsf.gov.lk/handle/1/9179AgricultureSoil organic matterSoil fertilitySoil floraSoil faunaPlant diseasesBiological controlThe living soil - its control for better plant growthArticle