麦茬西红柿苗期正值高温多雨季节,极易感染早疫病、灰霉病等多种病害。为减少病害,育成壮苗,应做好如下几点。 1.种子消毒 育苗前首先对种子进行消毒处理。消灭种子上附着的病原物。方法有二:一是用55℃温水浸泡种子10～15分钟,水量为种量4～5倍,然后用0.05％高锰酸钾浸20分钟,最后用清水冲洗干净进行催芽;二是在常规浸种前用0.5％福尔马林液浸30分钟,而后用清水冲洗2～3 Wheat stubble tomato seedling is hot and rainy season, vulnerable to early blight, gray mold and other diseases. To reduce disease, nurturing strong seedlings, should make the following points. 1. Seeds disinfection before seedling disinfection. Eliminate the pathogen attached to the seed. There are two ways: First, soak the seeds with warm water at 55 ℃ for 10 to 15 minutes, the amount of water is 4 to 5 times the volume, and then with 0.05% potassium permanganate dip for 20 minutes, and finally washed with water to promote germination; the second is conventional Soak in 0.5% formalin for 30 minutes before soaking, then rinse 2-3 with clean water