一、保种。在选用抗病高产品种的基础上,要严格种子消毒。种子消毒可选用强氯精300倍液,先用清水预浸12～24小时,再浸入药液中16～24小时,用清水洗净后,即可催芽播种。也可用20％三环唑可湿性粉剂100克。用少量水调成糊状后兑清水50公斤,搅匀后倒入种子浸泡36～48小时,捞出冲洗干净后催芽。对发芽势差的杂交稻种,浸种时间不宜过长,否则对发芽有一定影响。 First, to preserve the species. In the selection of high-yield resistant varieties on the basis of strict seed disinfection. Seed disinfection can be used strong chlorine 300 times the liquid, first with water pre-soaking 12 to 24 hours, and then immersed in the liquid 16 to 24 hours, washed with water to germinate sowing. Also available 20% tricyclazole 100g wettable powder. With a small amount of water transferred into a paste against the clear water 50 kg, stir into the seeds into the soak 36 to 48 hours, remove and rinse after germination. Potential hybrid rice seed germination, seed soaking time should not be too long, otherwise it has some impact on the germination.