对21.2%春雷霉素·氯苯酞WP防治稻瘟病((Pyricularia oryzae)的田间效果进行了试验。结果表明:该药剂对稻瘟病有较好的防治效果,有效成分用量为238.5、310、381.6g/hm2时,对水稻叶瘟的防效分别为64.35%、70.91%、76.04%;对穗瘟的防效分别为62.04%、68.95%、74.51%;与空白对照相比其增产率分别为9.33%、16.20%、20.47%。 A field experiment was carried out to control the blast of Pyricularia oryzae with 21.2% of kasugamycin and chlorpromazine.The results showed that the agent had a good control effect on rice blast, the effective components were 238.5,310 and 381.6 g / hm2 were 64.35%, 70.91%, 76.04% for leaf blight of rice and 62.04%, 68.95% and 74.51% for panicle blast, respectively. Compared with the blank control, the yield was respectively 9.33%, 16.20%, 20.47%.