Abstract:

Heilonggang water shortage is a major factor to limit the development of agricultural production in this area. The main planting model is winter wheat and summer maize double cropping in this area, wheat/corn yield depends mainly on exploitation of groundwater to maintain. In recent years, with the popularization and application of wheat water-saving techniques, grain yield and water efficiency gradually improved, but water yield potential is still huge. In particular, it is very necessary starting from the anniversary of the efficient use of water resources, establishment of regional characteristics, water-saving and efficient integration of the two mature technology system. Comprehensive Evaluation wheat and corn agronomic water-saving technology integration model are by entropy method. The conclusion is: minimum of water and fertilizer inputs mode is the best, water and fertilizer saving mode is the second-best, traditional of high water and fertilizer mode is the worst. Wheat and corn saving water and fertilizer is the development direction in future, should further raise the awareness of farmers of agricultural water. use various means to promote farmers using water-saving technologies of wheat and corn.