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1选用抗病品种根据病害发生特点,要尽量选用抗病品种。2培育无病壮苗种子消毒选用无病种子在太阳下晒种1～2天后,用52～55℃的温水浸泡。当水温降至常温,再浸泡3～4小时,或用1%硫酸铜溶液浸种5分钟,也可用50%多菌灵500倍液浸种1小时;10%磷酸三钠浸种20～30分钟。药液处理后,用清水冲洗2～3次,晾去明水,放在25～28℃的温度下催芽。
1 Selection of disease-resistant varieties According to the characteristics of disease occurrence, we should try to use disease-resistant varieties. 2 Cultivation of disease-free seedling seed disinfection selection of disease-free seeds in the sun bask for 1 to 2 days, with 52 ~ 55 ℃ warm water soak. When the water temperature dropped to room temperature, then soak for 3 to 4 hours, or soaked with 1% copper sulfate solution for 5 minutes, can also be soaked with 50% carbendazim 500 times for 1 hour; 10% trisodium phosphate soaking 20 to 30 minutes. After liquid treatment, rinse 2 to 3 times with water, air to Ming water, on the temperature of 25 ~ 28 ℃ germination.