Comparative Experiment of Multiple Cropping Sweet Sorghum Varieties in Bazhou

In order to solve the problem of the shortage and single variety of forage grass feed in Bazhou Area,eight sweet sorghum varieties were introduced,and the Luntai County and Yanqi County of Bazhou were used as randomized block experiment to study the agronomic traits,nutritional quality and yield,the silage maize（Jingang 50,KWS7340）used as the control group.Correlation analysis and membership function analysis were employed to analyze the results of experiment.The results showed that the comprehensive scores of eight sweet sorghum varieties in Luntai County were higher than the control,which suitable for replanting in Luntai County.The comprehensive scores of Liaotian 13,Xin 9,Jitianza 2and Dalishi were higher than the control in Yanqi County,indicated that those four varieties were suitable for replanting in Yanqi County.The yield,quality and income of sweet sorghum after multiple cropping were better than control maize,which can be popularized and applied in Luntai County and Yanqi County as an alternative feed for silage maize.