２００１年笔者在棚（室）种植番茄过程中，遇到一个奇怪现象，即２月４日定植，３月４日番茄植株叶片呈明显下披形，形似“尖塔”，花蕾小易脱落。经多方咨询、查找资料及反复试验，终于找出解决办法。即当外界气温达到０～５℃时，采用昼夜通风，白天风口大些、夜间风口小些 In 2001, when I planted tomatoes in the shed (room), I encountered a strange phenomenon, that is, February 4 colonization. On March 4, the leaves of tomato plants were apparently punctate and shaped like “steeples”. After consultation, find information and trial and error, finally find the solution. That is when the outside temperature reaches 0 ~ 5 ℃, the use of day and night ventilation, daytime vents larger, smaller vents at night