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以试验费用最小为目的构建目标函数 ,根据区域试验的精度要求构建约束方程 ,提出确定作物品种区域试验最佳年份数、试点数和重复数的非线性规划模型 ,阐述了实际应用中确定模型中各项参数以及规划求解的具体方法 ,并以黄河流域棉花品种区域试验为例作了分析。同时 ,改进提出反映区域试验精度的综合性指标 ( DRD) ,对相关问题作了讨论
The objective function is constructed for the purpose of minimizing the test cost. The constraint equations are constructed according to the precision requirements of the regional experiments. A nonlinear programming model for determining the optimal year, pilot number and repetition number of regional trials for crop varieties is proposed. In the practical application, Various parameters as well as the specific methods of solving the problem. The analysis of cotton varieties regional test in the Yellow River basin was taken as an example. At the same time, the improvement presents a comprehensive index (DRD) reflecting the precision of regional testing, and discusses related issues