黄瓜保护地生产条件同露地相比有很大差异。首先 ,保护地内的气象因子不如露地协调 ,有些气象因子变化非常激烈 ,而且一些气象因子的变化能明显影响一个或几个气象因子的变化。其次 ,春季保护地内湿度大 ,地温低 ,光照弱 ,尤其是冬末春初特别提早生产的保护地 ,对黄瓜幼苗的发 Cucumber protected areas of production conditions are quite different from the exposed. First of all, the meteorological factors in the protected area are not as coordinated as the open air. Some meteorological factors change very fiercely and some meteorological factors can obviously affect the changes of one or several meteorological factors. Second, the spring in the protected area of ​​high humidity, low ground temperature, light is weak, especially in late winter and early spring early protection of the production of early seedling of cucumber