Science Bulletins - (Vidurava)
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Item Ancient food and farming systems in Sri Lanka(National Science Foundation:Colombo, 1999) Rajapaksha, U.Item Spices and their essential oils(NARESA:Colombo, 1979) Jayawardene, A.L.Item Pesticides and dangerous side-effects of green revolution!(National Science Foundation:Colombo, 2005)Item Bee keeping and its management on coconut, rubber, cashew, citrus, gingelly, fruit, timber and other plantations(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Wickramasinghe, R.H.Item Marvels of insects:the oil palm pollinating weevil(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Mahindapala, R.Item Organic manure for crop production(National Resources, Energy Science Authority of Sri Lanka:Colombo, 1990) Tennakoon, A.Item Green revolution and integrated pest management(National Science Foundation:Colombo, 1996) Ranaweera, K.K.D.S.Item Pesticides:poisons to be used with care!(National Science Foundation:Colombo, 2005) Marasinghe, J.Item Guardians of the paddy crop(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Sandanayake, M.Item Traditional cultivation systems and appropriate technology(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Upawansa, G.K.