Browsing by Author "Punyasiri, N."
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Item Chemical control of illuk (Imperata cylindrica (L) Beauv.)(Tea Research Institute. Thalawakele, 1982) Sandanam, S.; Punyasiri, N.; Perera, K.L.S.D.; Gamage, A.K.Item Use of oxyfluorfen as a pre-emergent weedkiller in young tea (Camellia sinensis (L) ) O. Kuntze)(Tea Research Institute. Talawakele, 1985) Sandanam, S.; Punyasiri, N.; Gamage, A.K.