Citation:Sirisena, P.M.T.S. and Dammalage, T., 2015. Rice yield estimation using free satellite images, p. 45, In Proceedings of the Second Undergraduate Research Symposium on Environmental Conservation and Management, V.P.A. Weerasinghe, W.M.D.N. Wijeyaratne, M.D. Yatawara and W.A.R. Bandara (eds), Department of Zoology and Environmental Management, University of Kelaniya, Sri Lanka, 45 p.