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保护地蔬菜栽培,由于加温或施肥方法不当,或使用有毒塑料薄膜、塑料制品等,容易产生一些对蔬菜有害的气体。如果通风管理不好,很容易使保护地内有毒气体积累过多,使蔬菜中毒,严重影响蔬菜的产量。保护地内常见的有毒气体主要有以下几种。一、氨气一般生产中保护地内的施肥量都很大,如果
Protected vegetable cultivation, due to improper heating or fertilization methods, or the use of toxic plastic film, plastic products, easy to produce some harmful gases on vegetables. If the ventilation management is not good, it is easy to make the poisonous gas in the reserve accumulate too much, which will poison vegetables and seriously affect the yield of vegetables. There are several kinds of toxic gases commonly found in protected areas. First, ammonia production in the general protection of fertilizers are large, if