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《Journal of Anhui Agricultural Sciences》 2009-01
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Forecast Model of Amount of Wheat Aphid Occurrence in Heze

SI Feng-tai et al(Heze Meteorological Office,Heze,Shandong 274000)  
The calculation method of principal component was introduced in this paper.It was discussed that the principal componments were used for seting up regression equation,and the predictive model of amount of wheat aphids was determined in Heze,Shandong Province.The results were accurate.
【CateGory Index】: S435.122
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