采用二次饱和D－最优化设计，以肥料（x1）、密度（x2）与打顶期（x3）等3项蚕豆主要农艺措施为试验变量，建立青海12号蚕豆产量与主要变量的数学模型，以模型为基础，分析各因素对青海12号蚕豆产量的影响效应，并决策优化栽培方案，为丰产栽培技术规范制定提供依据。

It is very important to integration new variety and it’s cultural measures for increase production of crop, Qinghai No.12 was examined and approved ,which is larger seed variety of faba bean. In this paper Quadratic saturation D-best design wax used, which is fertilizer(x1), density(x2) and cut top(x3) is variable in the experiment. Through set up mathematic model between these variables and yield of Qinghai No.12, to analysis the influence effect of these variables to yield of Qinghai No.12 and decision-making the best collocation of the cultural measures, for provided the reference frame to set down the criterion of cultural measures of high yield for Qinghai No.12 in Faba bean.