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在分析了影响烟叶施肥的因素及相互作用关系和收集完整的技术参数的基础上，运用农业系统工程分析的原理和方法，总结与汇集烟草专家的施肥经验，建立数学模型。依靠各种基础资料数据库，研究出“烤烟配方施肥专家系统”。３ａ的应用结果表明，配方施肥的上等烟比对照提高２０．６７％；烟叶产量提高２７．３３％；烟叶产值、净收入分别比对照增加３３．７％和１０８％，而生产费用仅增加１２．７％。
Based on the analysis of the factors that affect the fertilization of tobacco leaves and their interactions and the collection of complete technical parameters, the principles and methods of agricultural systems engineering analysis were used to summarize and bring together tobacco experts’ fertilization experience and establish mathematical models. Rely on a variety of basic information database, developed a “flue-cured tobacco formula fertilizer expert system.” The application results of 3a showed that the top-grade tobacco with formula fertilization increased by 20.67% compared with the control; the yield of tobacco increased by 27.33%; the output value of tobacco and net income increased by 33.7% and 108% respectively compared with the control, while the production cost only increased 12.7%.