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喷药保护是防治三麦赤霉病的重要措施之一.特别在大发生年,及时用药,病粒率下降,千粒重增加,增产效果显著.但在发病极轻的情况下,喷多菌灵是否亦能提高千粒重,则有不同看法.为此,我们于1978～1980年在本所及启东、海安、南通等县进行了多点试验.试验选择生长一致的大元麦田(品种为2-14,立新1号、2号,黑方柱),设置小区,每个小区面积1～2厘,自始穗起隔天依次用25%多菌灵500倍液喷一个小区,到乳熟期止.用药量以每
Spraying drug protection is one of the important measures to prevent and cure three wheat scab. Especially in the year of occurrence, timely administration, the rate of sick grain decreases, the grain weight increases, the effect of increasing yield is remarkable.But in the case of very mild disease, Therefore, we carried out a number of experiments in our county and Qidong, Hai’an, Nantong and other counties from 1978 to 1980. The experiment selected the same growth of Taiyuan wheat field (variety of 2- 14, Lixin No. 1, No. 2, black square), set the district, each district area of 1 to 2%, from the beginning of the next spike next day with 25% carbendazim 500 times spray a cell to milk stage Only use