近几年哈密市城郊乡大白菜由于病毒病、霜霉病和软腐病的危害,白菜不能自给,种植面积由原来的400亩86年减少到110亩,单产由原来的7.5吨下降到3—3.5吨,病害严重年份甚至绝收。为了改变大白菜的生产和供应状况,1986年我们在哈密市城郊乡的大白菜上进行了增产菌的试验。 In recent years, the suburbs of Hami City, cabbage cabbage due to the virus disease, downy mildew and soft rot disease, cabbage can not be self-sufficient, acreage from the original 400 acres 86 years to 110 acres, the yield from 7.5 tons to 3 -3.5 tons, seriously ill years or even absolute. In order to change the status of production and supply of Chinese cabbage, we tested the yield-increasing bacteria on Chinese cabbage in the suburbs of Hami City in 1986.