7.Bio Farming
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Item Compost(Tea Research institute, 1951) Haworth, F.Item Compost manufacture and use on tea estates(Tea Research Institute:Talawakelle, 1935) Eden, T.Item Use of domestic refuse and sewage sludge profitably in the manufacture of compost(Institution of Engineers:Colombo, 1974) Ranasinghe, U.Item Use of domestic refuse and sewage sludge profitably in the manufacture of compost(Institution of Engineers:Colombo, 1974) Ranasinghe, U.Item Lysimetric studies on N-losses under different fertilizer management systems(National Agricultural Society of Sri Lanka:Peradeniya, 1988) Premaratne, K.P.; Gunasena, H.P.M.Item Compost and disease(Research institute:Thalawakle, 1937) Gadd, C.H.Item Selected notes on the manuring of tea(1982) Eden, T.Item Deep placement:a method of nitrogen fertilizer application compatible with algal nitrogen fixation in wetland rice soils(1980) Roger, P.A.; Kulasooriya, S.A.; Tirol, A.C.; Craswell, E.T.Item Biological nitrogen fixation and crop production(Department of Agriculture:Peradeniya, 1988) Thirukkumaran, P.; Mudannayake, C.Item Azolla as a biofertilizer for rice in Sri Lanka(Martiness Nijhoff and W. Junk Publishers:Leiden, 1984) Kulasooriya, S.A.; Hirimburegama, W.K.; Abeysekera, S.W.