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杀菌剂一、水稻病害防治药剂 1.水稻白叶枯病水稻白叶枯是一种难治的细菌性病害,近年来在我国南北稻作区发生面积逐渐扩大,其为害所造成的稻谷损失一般为10～20％,严重者可达40—50％。因此,寻找白叶枯病防治药剂是杀菌剂研究中的重要课题之一。无产阶级文化大革命以来,这一课题的研究取得了较大的进展。现将已研制成功的品种和正在研究中的有希望的品种概述如下。叶枯净 (5-氧吩嗪、杀枯净)
Bactericide First, the rice disease prevention and control agents 1 rice bacterial blight White rice leaf blight is a refractory bacterial diseases, in recent years in our country north and south paddy area of the area gradually expanded, the damage caused by the general loss of paddy 10 to 20%, severe cases up to 40-50%. Therefore, looking for bacterial leaf blight prevention and control agent is one of the important topics in the research of fungicide. Since the great proletarian cultural revolution, great progress has been made in the research of this topic. The varieties that have been successfully developed and promising varieties under study are summarized below. Leaf dry net (5-oxyphenazine, kill dead net)