不同降水年型下春小麦产量对降水、施氮及秸秆覆盖的响应模拟

叶晓娟, 刘强

Simulation of Spring Wheat Yield Response to Precipitation, Nitrogen Application, and Straw Mulching under Different Precipitation Year Types

Ye Xiaojuan, Liu Qiang

表6 不同降水年型的二次正交回归方程

Table 6 Quadratic orthogonal regression equation for different precipitation year type

年型Year 回归方程Regression equation R 2 - F P 欠水年Dry year Y欠水年=0.3581+0.7265X1+0.2208X2+0.0922X3+0.0254X12-0.4554X22+0.2485X1X2+0.0398X1X3+0.0123X2X3 0.794 60.63 <0.001 平水年Normal year Y平水年=0.3721+0.7088X1+0.3366X2+0.0772X3+0.0345X12-0.4407X22+0.2937X1X2+0.0387X1X3+0.0192X2X3 0.849 88.41 <0.001 丰水年Wet year Y丰水年=0.4045+0.7000X1+0.4523X2+0.0687X3+0.0611X12-0.4251X22+0.3352X1X2+0.0281X1X3+0.0205X2X3 0.932 214.87 <0.001