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温室、大棚蔬菜生产,由于经常在密闭状态下进行,便产生了与外部环境有一定差异的小气候。虽然这对蔬菜生产具有良好作用.但由于温度较高,也容易产生有害气体,且不易逸出。如果不注意管理,稍有疏忽,就会使有害气体积累量过大造成作物中毒,轻则植株萎蔫、叶片光合性能减弱、品质变劣、产量降低;重则植株死亡,甚至绝收。现将部分有害气体的危害症状及防止措施介绍如
Greenhouses, greenhouse vegetable production, as often carried out in airtight, they have a certain difference with the external environment of the microclimate. Although this has a good effect on vegetable production, it is also prone to harmful gases due to the high temperature, and is not easy to escape. If you do not pay attention to management, a little negligence, it will make the accumulation of harmful gases cause crop poisoning, ranging from plant wilting, weakened photosynthetic characteristics of leaves, deterioration of quality, reduce production; heavy plant deaths, or even absolute. Now part of the harmful gas hazards and prevention measures introduced