TY - GEN AU - Weerakkodi , W. A. P. TI - ආරක්ෂිත භෝග වගාව SN - 9559838601 U1 - 635.0485 PY - 2003/// CY - Peradeniya PB - Author KW - SRI LANKA KW - FLOR CULTURE KW - AGRICULTURE   KW - CROP CULTURE ER -