%0 Journal Article %T Effect of Urea, NPK and Compost on Growth and Yield of Soybean (Glycine max L.), in Semi-Arid Region of Sudan %A Samia Osman Yagoub %A Wigdan Mohamed Ali Ahmed %A A. A. Mariod %J ISRN Agronomy %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/678124 %U http://dx.doi.org/10.5402/2012/678124