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2 降水变化量、施氮量和秸秆覆盖量的模拟试验设计

Table 2 Simulation experiment design of precipitation variability, nitrogen application rate and straw mulching amount

降水变化量 Precipitation variability (%) 无量纲编码 Dimensionless code 施氮量 Nitrogen application rate (kg/hm2) 无量纲编码 Dimensionless code 秸秆覆盖量 Straw mulching amount (kg/hm2) 无量纲编码 Dimensionless code -20 -1.40855 0.0 -1.40855 0 -1.40855 -10 -0.70427 52.5 -0.70427 1125 -0.70427 0 0.00000 105.0 0.00000 2250 0.00000 10 0.70427 157.5 0.70427 3375 0.70427 20 1.40855 210.0 1.40855 4500 1.40855