冬春茬是日光温室黄瓜的主要茬口之一,期间往往遭遇多种灾害性天气,如低温、连阴雨雪等,对日光温室黄瓜生产影响严重,往往给菜农造成较大的经济损失。所以针对死苗原因应采取相应对策:1、肥害:一是施用未充分腐熟的肥料,二是施肥浓度过大。施用完全腐熟的有机肥:有机肥必须经 Winter and spring stubble is one of the main stubble cucumbers in sunlight greenhouse. During this period, many disastrous weather is often encountered, such as low temperature, even overcast, rain and snow, which have a serious impact on cucumber production in solar greenhouse, which often causes great economic losses to vegetable farmers. Therefore, the reasons for the dead seedlings should take the appropriate countermeasures: 1, fertilizer damage: First, the application is not fully decomposed fertilizers, fertilizer concentration is too large. Apply completely decomposed organic fertilizer: organic fertilizer must be through