摘要
以Blank作物模型为基础,采用动态规划方法确定甜菜优化灌溉制度,以期达到节水高产的目的。就内蒙古河套灌区永联试区的实际情况,计算结果表明,除苗期、完熟期不需灌溉外,其余5个生育阶段均需灌溉,灌水量分别为50m^3/亩,全生育期灌溉定额为250m^3/亩,实际根产量为3902.2kg/亩。
The method of dynamic program are adopted to determine the optimum drrigation system on the basis of Blank crop model so as to achieve the goal of high yield and water-saving. The results calculated in accordance with the actual condition in Yonglian test region of Hetao irrigation region, Inner Mongolia shown that. The other five growth stages all require irrigation except the two stages of seedling and full ripe, and amount of irrigation are 50 m3 per mu separately. The tatol amount cf irrigation is 250 m3 per mu. The actual root yield is 3902.2 kg per mu.
关键词
甜菜
作物
模型
灌溉制度
Sugarbeet, Crop model, Dynamicprogram, Irrigation system
