番茄青枯病是我地目前番茄为害最大的病害。病菌在土壤中存活时间长,传播快,用药剂防治不能控制病害的发生,老菜区发病更严重,减产高达60%以上,甚至失收。为此,我们1989年用番茄套种洋葱——生态种植法防治番茄青枯病进行了试验,现将试验结果总结如下: 一、材料与方法1、试验材料供试品种;早魁番茄、本地洋葱。供试材料:地膜、竹棍。2、试验方法试验在本所进行,前作为大白菜, Tomato bacterial wilt is the biggest damage to tomato in my country. Germs in the soil to survive a long time, spread fast, with the agent can not control the occurrence of disease prevention and control, the incidence of more serious old vegetable area, cut as high as 60% or more, and even lost. To this end, we planted in tomato tomato tomato seedling disease with tomato intercropping method in 1989, the test results are summarized as follows: First, the material and methods 1, the test material test varieties; early Quebec, local onion . Test materials: plastic film, bamboo sticks. 2, test methods Test carried out in our house, before as Chinese cabbage,