甘兰芜菁高产栽培数学模型及其仿真寻优的研究

RESEARCH THE MATHEMATICAL MODEL OF HIGH YIELDS CULTIVATION TECHNIQUES AND IMITATE TRUE LOOK FOR FINE OF TURNIP (Brassica rapa L.)

采用正交旋转回归组合设计、对甘兰芜菁的高产栽培综合农艺措施进行研究、并且建立了与播种期(X_1),移栽密度(X_2)、施氮量(X_3)、施磷量(X_4),起自时间(X_5)有关的数学模型: Y=5557.8-382.2X_1+88.3X_2+61.7X_3+49.0X_4+123.8X_5-148.7X_1X_2-30.0X_1X_3+13.9X_1X_4-644.2X_1X_5-40.9X_2X_3+34.4X_2X_4+98.0X_2X_5-241.9X_3X_4-102.0X_3X_5+7.6X_4X_5-149.1X_1~2-92.1X_2~2-28.7X_3~2+58.2X_4~2-25.1X_5~2 根据上述模型进行微机仿真寻优、其结论是:甘兰芜菁获得6000公斤/亩以上高产的综合农艺措施为播种期7月24～25日,密度在7500～7600株/亩,施硫铵总量69.4公斤/亩,施过磷酸钙31～32公斤,收获时间1月10日～11日。

Employ composite for design about orthogonal of revolution regression. Research summingup measure about techniques of turnip (Brassica rapa L.).Build mathematical model have something to do with sowing time (X_1)、number of seedlings (x_2)、ammonium sulphate (x_3)、Superphosphate amount (x_4)、gather time (x_3)、The model: Y = 5557.8 -382.2X_1+ 88.3X_2 + 61.7X_3 + 49.0X_4 + 123.8X_5 - 148.7X_1X_2 - 30.0X_1X_3 + 13.9X_1X_4 - 644.2X_1X_5 -40.9X_2X_3 + 34.4X_2X_4 + 98.0X_2X_5 -241.9X_3X_4-102.0X_3X_5+ 7.6X_4X_5-149.1X_1~2-92.1X_2~2-28.7X_3~2+ 58.2X_4~2-25.1X_5~2 Track out the mathematical model imitate true look for fine.The outcome of summing up measure about high yield cultivation techniques.the sowing time in july twenty four—twenty five day,The number of seedlings are 7500— 7600 plant'/ mu,Ammonium sulphate are 69.4kg / mu,Superphosphate amount are 31—32kg / mu,Gather time in ten —elevn day.