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1IntroductionSoybeanisanimportantcommercialcropinHeilongjiang,whereannualareaofsoybeancultivatedisabout30%,totaloutputis24%,...
1IntroductionSoybeanisanimportantcommercialcropinHeilongjiang, whereannualareaofsoybeanculti-vatedisabout30%, totaloutputis24%, ...