温室是一个相对密闭的空间，有害气体很容易积累，当达到一定浓度后就会对蔬菜产生危害，所以要认真预防，温室内容易受到的气体危害主要有以下几种： 一、氨气是日光温室最容易发生危害的有毒气体，无色，有强烈的刺激性气味，很容易闻到。它主要危害蔬菜的叶片，开始水浸状， Greenhouse is a relatively confined space, harmful gases can easily accumulate, when it reaches a certain concentration of vegetables will have a detrimental effect, so to carefully prevent the greenhouse gas vulnerable to the following major hazards: First, the ammonia is the sun Greenhouse is most likely to endanger the toxic gas, colorless, has a strong pungent odor, it is easy to smell. It is mainly harmful to the leaves of vegetables, began flooding,