分析了大豆品种东农50对不同浓度草丁膦(Glufosinate)的敏感性表现。结果表明:施用50 mg.L-1草丁膦后3 d东农50开始表现枯黄、萎蔫,随着浓度增大毒害作用增强,扩散整个叶片;子叶、茎、真叶不同位置的草丁膦处理显示新叶、子叶对草丁膦最敏感,茎的敏感性最低;全株喷施75 mg.L-1草丁膦时可直接观察到草丁膦对叶片的毒害作用,二次喷施效果显著,易于观察。 The susceptibility of soybean cultivar Dongnong 50 to different concentrations of glufosinate was analyzed. The results showed that Dongnong 50 began to show yellowish and wilting three days after 50 mg.L-1 glufosinate was applied. With the increase of the concentration, the poisoning effect was enhanced and the entire leaf was diffused. The phosphinothricin, Cotyledons showed the most sensitive to glufosinate with the lowest sensitivity to stem; the spraying of 75 mg.L-1 glufosinate directly observed the toxicity of glufosinate to leaves, Significant effect, easy to observe.