Jayawardena, S.D.G.2007-11-131997-04-012007-11-131982http://hdl.handle.net/10625/14581Text1 digital file (182 p. : ill.)Application/pdfenRICEAGRICULTURAL PRODUCTIVITYSRI LANKACULTIVATION PRACTICESCULTIVATION SYSTEMSSOIL FERTILITYGENETIC IMPROVEMENTRESEARCH RESULTSStudies on potential productivity of rice in the low country wet zone of Sri LankaThesis