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采用五元二次通用旋转回归组合设计，研究烤烟大田移栽期、密度、施氮量、施磷量和施钾量对烟草赤星病的影响，结果表明：栽培措施显著影响烟草赤星病的发生，各项栽培措施与烟草赤星病的关系可用模型Ｙ＝ １０．３８６－ ２．２７１Ｘ１＋ ２．５２５Ｘ２ ＋２．７５Ｘ３ － １．１４６Ｘ４ － ３．３９６Ｘ５ － １．４３７５Ｘ３Ｘ５ ＋ ０．８９９Ｘ２１ ＋ １．１８０Ｘ２３ ＋ １．２４３Ｘ２４ ＋１．１１８Ｘ２５表示，通过模拟选优提出了黑龙江烟区烟草赤星病综合防治系统中各项栽培措施的最佳组合
The five-element quadratic universal regression model was used to study the effects of transplanting, density, nitrogen application, phosphorus application and potassium application on tobacco brown spot disease. The results showed that cultivation measures significantly affected the occurrence of brown spot disease , The relationship between cultivation measures and tobacco brown spot disease Available model Y = 10.386- 2.271X1 + 2.525X2 + 2.75X3 - 1.146X4 - 3.396X5 - 1.4375X3X5 + 0.899X21 + 1.180X23 + 1 .243X24 + 1.118X25, said that by simulating the optimal proposed Heilongjiang tobacco brown spot integrated control system in the cultivation of the best combination of measures