旱粮是我省粮食生产的薄弱环节，而江西适于发展玉米间作大豆的秋闲田则有近２７万ｈｍ￣２，发展旱粮的潜力很大。本试验采取二次通用旋转组合设计，选择了间作行比、大豆密度以及氮、磷、钾肥施用量５个试验因子，建立了试验因子与间作体系的总产量、能量总产出、０．０６７ｈｍ￣２（亩）产值和间作玉米产量、大豆产量间的数学模型。对模型的解析得知，间作行比及施磷量对间作总产量影响最大；行比与大豆密度之间存在着正的交互效应，而大豆密度与施氮量之间的互作则为一种负效应。通过模拟优化，获得了一套可行性大的秋玉米间作秋大豆的综合农艺技术方案。本试验为生产实践提供了较可靠的技术依据。 Dry grain is the weakest link in grain production in our province, while Jiangxi is suitable for the development of corn intercropping soybeans in autumn leisure field has nearly 270,000 hm ~ 2, the potential for the development of dry grain is very large. In this experiment, the second general rotary combination design was adopted. Five test factors such as intercropping ratio, soybean density and nitrogen, phosphorus and potassium fertilizers were selected, and the total yield and total energy output of experiment and intercropping system were set at 0.067hm ~ 2 (mu) output value and intercropping maize yield, mathematic model of soybean yield. The analysis of the model shows that intercropping and phosphorus application have the greatest effect on the total yield of intercropping; there is a positive interaction effect between the row ratio and the soybean density, while the interaction between the soybean density and the nitrogen application rate is one Negative effects. Through simulation and optimization, a set of feasible agro-technology scheme of autumn soybean with autumn corn was feasible. This test provides a more reliable technical basis for production practice.