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Browsing by Author Sangakkara, U.R.

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Showing results 1 to 17 of 17

Issue Date	Title	Author(s)
2012	Competitive performance of purple nutsedge (Cyperus rotundus L.) and onion (Allium cepa L.) as affected by different sources of Nitrogen	Geretharan, T.; Sangakkara, U.R.; Arulnandhy, V.
2008	Direct shoot organogenesis from nodal and leaf explants of Munronia pinnata (Wall.) Theob:a valuable medicinal plant	Gunathilake, P.M.P.C.; Abayagunawardhana, N.; Wimalasiri, S.; Sangakkara, U.R.; Eeswara, J.P.
1992	Effect of mulching, potassium fertilizer and clones in minimizing drought effects in young tea	Ekanayake, P.B.; Sangakkara, U.R.; Mapa, R.B.
2011	Effect of purple nutsedge(Cyperus rotundus) population densities on onion(Allium cepa) as influenced by Nitrogen in the Eastern Province of Sri Lanka	Geretharan, T.; Sangakkara, U.R.; Arulnandhy, V.
1999	Effective weed -free period of common beans in two different agro -ecological zones of Sri Lanka	Premalal, K.P.S.B.; Sangakkara, U.R.; Van Damme, P.; Bulcke, R.
1995	Effects of plant density, nitrogen and gypsum on yield parameters of groundnut (Arachis hypogea L.) in regosols of Batticaloa district	Sivanesarajah, K.; Sangakkara, U.R.; Sandanam, S.
2007	Growth of nursery plants in tea as affected by type of cutting and planting media	Weerasinghe, K.W.L.K.; Wijeratne, M.A.; Sangakkara, U.R.
2011	Impact of green manure on productivity patterns of homegardens and fields in a tropical dry climate	Egodawatta, W.C.P.; Sangakkara, U.R.; Wijesinghe, D.B.; Stamp, P.
2013	Impact of rice straw mulch on growth, yield components and yield of direct seeded lowland rice (Oryza sativa L)	Devasinghe, D.A.U.D.; Premaratne, K.P.; Sangakkara, U.R.
1993	Influnce of in situ and ex situ green manures on the productivity of rice and onions in the Mahaweli system C of Sri Lanka	Bandara, K.M.C.; Sangakkara, U.R.
2003	Intercropping of young cashew (Anacardium occidentale L.) and its effects on crop productivity and land utilization	Abeysinghe, D.C.; Sangakkara, U.R.; Jayasekera, S.J.B.A.
1996	Productivity of intercropped maize (Zea mays) and varieties of yard -long bean (Vigna unguiculata) as affected by planting time	Ranasinghe, R.A.D.T.K.; De Costa, W.A.J.M.; Sangakkara, U.R.
2009	Productivity of Maize (Zea mays L.) and Mung bean (Vigna radiate L. Wikzek) in homegardens and cropping fields under subsistence conditions	Wijesinghe, D.B.; Egodawatta, W.C.P.; Sangakkara, U.R.; Pushpakumara, D.K.N.G..; Stamp, P.
1997	Productivity of rice and chilli under village tanks of Sri Lanka in Maha season with respect to resource utilization	Karurasena, K.G.J.; Marambe, B.; Sangakkara, U.R.; Dharmasena, P.B.
1989	Some aspects of nitrogen nutrition of flue cured tobacco in Sri Lanka	Samaraweera, B.D.; Sangakkara, U.R.
2009	Vegetation composition and ecological benefits of home gardens in the Meegahakiula region of Sri Lanka	Senanayake, R.L.; Sangakkara, U.R.; Pushpakumara, D.K.N.G.; Stamp, P.
2011	Weed Management by rice straw mulching in direct seeded lowland rice (Oryza sativa L.)	Devasinghe, D.A.U.D.; Premarathne, K.P.; Sangakkara, U.R.