大棚及温室甜椒极易形成空秧，一是由于缓苗期过长。棚室缓苗期一般６～７天，此期内棚室密封不通风，棚温维持在３０～３７℃，夜间还需加盖草苫保温防冻，以加速缓苗进程。但若缓苗期超过６～７天，则棚室高温高湿时间长，容易引起植株发生徒长。二是由于通风不及时。缓... Greenhouses and greenhouse peppers easily form empty seedlings, one is due to Huanmiao period too long. Huanmiao general Huanmiao 6 to 7 days, during this period studio sealed non-ventilated shed temperature was maintained at 30 ~ 37 ℃, night also need to cover Caulis heat insulation antifreeze to accelerate the process of Huanmiao. However, if Huanmiao more than 6 to 7 days, the greenhouse temperature and humidity for a long time, easily lead to plant growth. Second, due to ventilation is not timely. slow...