试验是于1962年在甘肃岷县进行的。在病害流行前期、中期和后期,分一次或两次,进行地面喷药。小区面积为0.025亩的四行区,无重复。供试品种为当地主要品种“深眼窝”(感病品种)。供试药剂为1:9赛力散消石灰粉剂和1:9西力生消石灰粉剂,每亩每次施药量按1斤纯药计算,药粉细度均通过120号筛目。收获后,将小区全部薯块,进行感病率的检查,检查结果如下: The experiment was conducted in Minxian, Gansu in 1962. In the disease pre-epidemic, mid-term and late, once or twice, for spraying on the ground. District area of ​​0.025 acres of the four areas, no duplication. Test varieties for the local main varieties of “deep nest” (susceptible varieties). Test agents for the 1: 9 Saixi scattered lime powder and 1: 9 Xi Lisheng slaked lime powder per acre rate of 1 kg of pure drug calculation, the fineness of the powder through the 120 mesh. After harvest, the district all the tubers, the prevalence of the inspection, the test results are as follows: