Citation:Ranasinghe, R.H.A.A., Rathnayaka, R.M.G.P., Jayasekara, L.R. and Jayathilleke, M.P. 2013. Formulation of low cost liquid organic fertilizers using aquatic and terrestrial weeds enriched with poultry manure. Proceedings of the 69th Annual Sessions of Sri Lanka Association for the Advancement of Science, pp 118.