河西武威绿洲春小麦节水高产高效优化灌溉制定体系研究

An Optimal Water Saving Irrigation Model for Spring Wheat in Wuwei Oasis Area of Hexi Corridor

以甘肃河西武威绿洲为对象，采用试验和调研相结合，定性与定量相结合的研究方法，探讨了该洲春小麦节水高产高效优化灌溉制体系。主要结论是：明确了该洲春小麦高产的资源潜力和生育期水分供需及时段供求关系；明确了春小麦耗水关键期及不同生育时期对小分的亏缺反应规律；通过动态规划顺序递推、逆序决策分析，建立了操作性较强的节水高产效优化灌溉制度体系。

An optimal water saving irrigation model with a high yield and efficiency was studied on the data of field experiments and surveys of spring wheat in the Wuwei Oasis area of Hexi Corridor. The results showed clearly. The relationship between resource potentialities of spring wheat and water requirement in its growth, and different quantities of water should be supplied in different stages. The key phases of water consupmption and the influence pattern of water deficit in the growth of spring wheat were worked out. By applyig the methods of dynamic program, sequence reducing and reverse decision analysis, an optimal water saving irrigation model for a high yield and efficiency was established, which proved to be practicable in agricaltural production.