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随着保护地蔬菜面积的扩大,近年来病害问题日益严重。目前虽然喷洒某些杀菌剂可以起到一定的防病效果,但是稀释药液加的水,增加了保护地的湿度,反而诱发了另一些病害的发生。为了解决保护地内喷药不用水的问题,天津南开大学元素所(提供15％粉锈宁热雾剂),农牧渔业部南京农机化研究所(提供新研制的喷气式热雾机)与北京市植保公司蔬菜科(负责田间药效试验)3方面共同协作,在北京市丰台区东营头三队进行了黄瓜白粉病的热雾剂试验。试验面积为1.6亩,分两个大棚,每棚的面积为0.8亩。两个大棚的发病情况略有差异,为了考验粉锈宁热雾剂的药效,我们特意将病情较
With the expansion of the vegetable area in protected areas, the disease problem has become increasingly serious in recent years. At present, although spraying certain fungicides can play a certain role in disease prevention, adding diluted water to the water increases the humidity of the protected areas and induces other diseases instead. In order to solve the problem of spraying without water in the protected area, the institute of Nankai University in Tianjin (providing 15% Triadimefon), the Nanjing Agricultural Mechanization Research Institute of the Ministry of Agriculture, Animal Husbandry and Fisheries (providing newly developed jet- Company Vegetable Branch (responsible for the field efficacy test) to work together in three areas, Fengtai District, Beijing Dongying first three teams conducted a cucumber powdery mildew fever test. The test area of 1.6 acres, divided into two greenhouses, each shed area of 0.8 acres. Slightly different incidence of the two greenhouses, in order to test the efficacy of triadimefon hot fog, we deliberately compare the condition