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稻瘟病是水稻上的主要病害。大田危害叶片及穗部,引起产量损失,为了明确叶瘟、穗瘟对产量损失的影响,为病害损失的预报和防治措施的制定提供科学依据,本站于1983年进行了本项研究。现将结果整理如下。一、材料和方法1、供试品种:感病品种“筑紫晴”。2、处理:在自然发病条件下,用25％多菌灵500倍液按不同间隔时间喷药,至病害流行终止期。喷液量35—60公斤/亩(依植株大小而定)。具体间隔天数为5、10、15、20和
Rice blast is a major disease on rice. Field damage to leaves and ears, causing the loss of production, in order to clarify the impact of leaf blast, head blast on the yield loss for the prediction of disease losses and prevention and control measures to provide a scientific basis for this site in 1983 conducted this study. The results are now organized as follows. First, materials and methods 1, the test varieties: susceptible varieties “build purple clear.” 2, treatment: In the natural disease conditions, with 25% carbendazim 500 times at different intervals spraying, to the epidemic termination of disease. Spray volume 35-60 kg / mu (depending on the size of the plant). The specific interval days are 5, 10, 15, 20 and