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本文分析了利用二次回归旋转组合设计,研究玉米大豆间作群体各限制因素对产量等目标性状的影响。通过建立密度、带型配置指数等决策变量与产量、产值等目标函数的数学模型,由计算机进行模拟分析和寻优,得到了如下结论:(1)影响目标性状的主控因子重要程度为玉米密度>带型配置>两者的高互作用。(2)在本试验因子取值范围内,密度在各种带型配置下与产量均呈抛物线关系;而在不同密度下,带型指数对产量的影响为平缓的凹型抛物线关系。利用所建模型,可了解产量产值等目标函数达最大值时相应的决策变量取值,了解全面实施时的所有试验方案的结果,以利优化筛选,为玉米大豆间作的实施和产量、产值的预测预控提供科学依据。
In this paper, we analyzed the effects of various limiting factors on yield and other traits by using quadratic regression rotation combination design. Through the establishment of the mathematical model of the objective function such as density and belt configuration index, and the objective function such as output and output value, the computer simulation and optimization are carried out. The conclusions are as follows: (1) The importance of the controlling factors affecting the target trait is corn Density> belt configuration> high interaction between the two. (2) Within the range of the experimental factors, the density has a parabolic relationship with the yield under various belt configurations; while at different densities, the effect of belt index on the yield is a flat concave parabola. Using the model, we can know the value of the corresponding decision variables when the objective function reaches the maximum value, such as yield and output value, and understand the results of all the experimental schemes when fully implemented, in order to optimize the screening for the implementation and yield of maize soybean intercropping. Predict control provides the scientific basis.