本试验运用二次通用旋转组合设计方法,在影响麦茬稻产量的诸因素中,选择五项可控因素,建立五元二次回归模型,在此基础上经电子计算机模拟、筛选,提出该地区麦茬稻在节水条件下,影响其产量的主要因素为施氮量和插秧密度,其次是浇水次数和施磷量。同时明确了不同产量水平的农艺措施配套方案。 In this experiment, we used quadratic universal rotation combination design method to select five controllable factors among the factors that affect the yield of wheat stubble. Five-year quadratic regression model was established. On the basis of this, we simulated by computer, The main factors affecting the yield of wheat stubble under water-saving conditions were nitrogen application rate and planting density, followed by watering times and phosphorus application rate. At the same time, different levels of agronomic measures were clearly defined.