Abstract Under field test condition,this paper studied effects of 3 soil disinfectants on controlling celery root rot.The results showed that all 3 soil disinfectants had certain control effect,and the incidence rate and disease index were significantly higher or extremely lower than that of the contrasts.The control effects of 98% dazomet MG,calcium cyanamide soil purifier and 35% calcium cyanamide AS were 68.03%,57.98% and 35.60%,respectively.Their yields were increased by 35.19%,28.43% and 13.20%,compared with that of the contrasts.98% dazomet MG be used as the first choice for controlling celery root rot.
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