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对水稻纹枯病防治指标的研究,1983年198l-1982年的基础上继续进行。试验研究工作分两部分,即继续进行田间小区试验和田间扩大试验,以验证上两年的结果。1984年对早晚稻不同品种又进行了大面积防治示范,进一步证明于分蘖末期病蔸率20～25%或孕穗期病蔸率30%时,应用井岗霉素,早稻施药二次,晚稻一般施药一次为防治水稻纹枯病的经济有效的防治指标。
Research on the control index of rice sheath blight, 198l -1982 year’s credit continued. The experimental research work is divided into two parts, that is to continue the field plot test and field expansion test to verify the results of the previous two years. In 1984, a large-scale prevention and control demonstration was conducted on different varieties of morning and evening rice. It was further proved that when applied to Jinggangmycin, early rice twice or late rice at the late tillering stage with the disease rate of 20% -25% or the booting disease rate of 30% The general application of pesticides once for the control of rice sheath blight economic and effective control indicators.