3种土壤消毒剂对芹菜根腐病的田间防效

在大田试验条件下,比较了98%棉隆微粒剂、35%威百亩水剂、氰氨化钙土壤净化剂对芹菜根腐病的防治效果。结果表明:3种土壤消毒剂均对芹菜根腐病有一定的防效,发病率和病情指数均显著或极显著低于空白对照;98%棉隆微粒剂、氰氨化钙土壤净化剂、35%威百亩水剂的田间防效分别为68.03%、57.98%、35.60%,比对照分别增产35.19%、28.43%、13.20%,98%棉隆微粒剂可作为防治芹菜根腐病的首选药剂。

Field Control Effect of Three Soil Disinfectants on Celery Root Rot

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．