Open Access Research Paper Views (1145) Effect of green manuring in combination with nitrogen on soil fertility and yield of bread wheat (Triticum aestivum) under double cropping system of Sinana-dinsho, Southeast Ethiopia Taye Belachew, Yifru Abera J. Biodiv. & Environ. Sci. 1(1), 1-11, February 2011. Keywords: Double cropping, Fertility, Forage legumes, Land preparation, Mono-cropping Details