Rapeseed is one of the most important oil crops in the world, the yield and planting area of rape inChina occupied the first place in the world.85%of the total area of rapeseed in China distributes in theReaches of Yangtze River, which has rich water resources and higher underground water, most rapeseedgrows after rice, in this rotation system, the paddy soil and rich rain could easily lead to waterloggingand reduction of the yield and quality of rapeseed. At present improved agronomic measures andwaterlogg...