论文部分内容阅读
河北省农垦科研所经过三年时间广泛收集新杀菌剂,在田间进行试验,从中筛选出防治稻瘟病和纹枯病的优良药剂品种和使用技术,并取得生产中扩大应用的效果。防治稻瘟病和纹枯病的主要药剂和技术关键是:(1)一般病田,孕穗中期使用5％井岗霉素100—150克/亩,兑水30公斤喷雾防治纹枯病;始穗期使用20％三环唑100克/亩,兑水30公斤喷雾防治稻瘟病。(2)重病田,小穗分化期和孕穗期使用二次井岗霉素防治纹枯病;孕穗末期(结合防治纹枯病)和齐穗期使用二次二环唑防治稻瘟病。
Hebei Province Reclamation Research Institute after three years of extensive collection of new fungicides in the field trials, screening out from the prevention and control of rice blast and sheath blight excellent varieties and use of drugs, and to obtain the effect of expanding production applications. The key to the prevention and control of rice blast and sheath blight are: (1) In general, the mid-booting stage uses 5% Jinggangmycin 100-150 g / mu and watered 30 kg spray to control sheath blight; The use of 20% tricyclazole 100 g / mu, watered 30 kg spray prevention and control of rice blast. (2) Severe disease, spikelet differentiation and booting stage Second Jinggangmycin for the control of sheath blight; late booting stage (combined with control of sheath blight) and full heading stage with secondary diconazole to control rice blast.