In order to explore the influence of irrigation stage and proportion,nitrogen fertilization rates and proportion on the grain yield and its components, milling quality and processing quality of tow wheat genotypes, and provide theoretical basis and technical support for water-saving and high-output cultivation of winter-wheat. The experiment was carried out at the experimental station of the Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (Beijing) form September 2009 to June 2010.The m...