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三年试验示范结果表明,2.5-10%硫酸亚铁溶液浸种防治地瓜黑斑病效果在37.64-85.92%,在此浓度范围内,防病效果随药液浓度的增加而提高。其中3-5%硫酸亚铁溶液浸种10分鐘防病效果较好,用药不多,浸种时间较短,为此药浸种的适宜浓度。在试验浓度范围内,对种瓜出苗和秧苗生长均无不良影响。这种方法操作技术简单,群众容易掌握,不需柴草,比较经济,适合在目前生产条件下,特别是烧草缺乏地区推广应用。
Three years of pilot demonstration results show that 2.5-10% solution of ferrous sulfate soaking mycelia in the prevention and treatment of sweet spot effect in 37.64-85.92%, in this concentration range, the effect of disease prevention and control with the increase of the concentration of the liquid increased. Among them, 3-5% ferrous sulfate solution soaked for 10 minutes is better in disease prevention, less in medication and shorter in soaking time so that the suitable concentration of soaking medicine is for this medicine. Within the experimental concentration range, there was no adverse effect on seedling emergence and seedling growth. This method is simple operation technology, easy to grasp the masses, without firewood, more economical, suitable for the current production conditions, especially the lack of poplar grass popularization and application.