• 中文核心期刊
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  • 中国科技核心期刊
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Volume 5 Issue 1
Apr.  2012
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Chen Songen, Gao Chuanxun, Chen Yian, Guo Yuqun, Wei Xiaubin, Chai Chinhua, Gao Xuenun, Lin Chung. STUDY IN ESTABLISHMENT MODEL OF OPTION ON OPTIMUM RATE——I. FUZZY ASSEMBLE ANALYSIS OF WHITE RUST OF DWAMP MORNINGGLORY (IPOMOCA AQVATICA Forsk) AND OPTION ON OPTIMUM[J]. Fujian Journal of Agricultural Sciences, 1990, 5(1): 60-68.
Citation: Chen Songen, Gao Chuanxun, Chen Yian, Guo Yuqun, Wei Xiaubin, Chai Chinhua, Gao Xuenun, Lin Chung. STUDY IN ESTABLISHMENT MODEL OF OPTION ON OPTIMUM RATE——I. FUZZY ASSEMBLE ANALYSIS OF WHITE RUST OF DWAMP MORNINGGLORY (IPOMOCA AQVATICA Forsk) AND OPTION ON OPTIMUM[J]. Fujian Journal of Agricultural Sciences, 1990, 5(1): 60-68.
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STUDY IN ESTABLISHMENT MODEL OF OPTION ON OPTIMUM RATE——I. FUZZY ASSEMBLE ANALYSIS OF WHITE RUST OF DWAMP MORNINGGLORY (IPOMOCA AQVATICA Forsk) AND OPTION ON OPTIMUM

  • Institute of plant Protection, Fujian Academy of Agricultural Sciences

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  • Received Date: January 04, 1989
    Graphical Abstract
    • Abstract
  • Fuzzy saaemble analysis was used to separate and classify 3 kinds of the symptom-varies in white rust of dwamp morningglory which comes from last every week of infect period in 1984/1989. The results show that the method can be used to classify symptom-varies according to 4 kinds of the similarities in last every week, including temperature on leafage, rainfall, disease index, and cloudy days ect. and its conicidental ratio with actual disease index on this week is 88.6%.The paper also deals with the option on the optimum rate of fungicides under constraint condition, with the equation constraint a general principle of alternative optimum rate of fungicides is derived, whereas under unequal constraint condition a nonlinear programming is tried so as to find out the optimum solution. With regard to the quadratic function of metalaxyl application a method of calculation on optimum solution is also given.
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  • [5] 陈松恩,1983,瑞毒霉防治空心菜白锈病效果显著。农业科技情报(39)
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