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近年来,随着旱育秧的普及推广,水稻恶苗病发生呈上升趋势,尤其是梗稻9516、优辐梗品种推广,恶苗病发生更为严重,一般减产20%~30%,已成为水稻生产上急需解决的主要病害之一。为此,我们于1999年进行了适乐时及其混用防治水稻恶苗病药效试验,取得了较为理想的防病效果。秧苗期调查结果表明,适乐时5ml,兑水5kg 浸稻种(易感恶苗病的9516)5kg,浸种60小时,于5月13日播种,每处理10m~2,重复二次,随机排列,肥床旱育,药后28天调查,适乐时单用对水稻恶苗病具有很好的防效,其防效为85.2%(清水对
In recent years, with the popularization and popularization of dry cultivation seedlings, the occurrence of rice Bakanae disease is on the rise, especially for the extension of the varieties of stem rice 9516 and the excellent spike stems. The incidence of Bakanae disease is even more serious, with a general decrease of 20% to 30% One of the major diseases that need urgent solution in rice production. To this end, we carried out in 1999 when the fun and mixed with fungicide rice disease test, and achieved a more satisfactory disease control effect. The results of seedling stage showed that 5ml of scholarly water and 5kg of soaked paddy rice (9516 susceptible to diarrheal disease) were immersed in 5kg for 60 hours and sown on May 13, each treatment was 10m ~ 2, repeated twice and randomized Arrangement, fertilizer bed dry nursery, 28 days after the drug investigation, when used alone when the fungus of rice has a good control effect, the control effect was 85.2% (water on