一、温度管理蔬菜生育期中有一系列的适温指标。温度过高,会明显影响授粉,造成落花落果,尤其是夜温偏高会造成徒长。冬季往往温度偏低,从而造成寒根,如黄瓜的根呈水渍状,似冻坏的白箩卜。温度偏低还表现叶色不正常,果实畸形,特别是冬季育苗期,如果没有适宜的温度,将影响花芽分化,造成畸形果,因此每年春节前的番茄一穗果畸形果率偏高。保温工作可以通过在夜间覆盖保温物如加盖草苫,或生火炉等方法来提高棚内的温度。这里特别需要指出的是,棚室内切勿明火加温,要设置火道,火道的接口要封严,以防有害气体泄漏到棚室内,而发生人、菜中毒的事件。二、光照管理当光照缺乏时,也就是大雾或连阴天发生时,棚中缺温少光,蔬菜的光合作用低,植株衰弱,可表现落花落果,出现畸形果、裂果。另外调查发现,黄瓜育苗期遇到连阴天,一些农户为了苗床保温,棚室白天也不揭 First, temperature management Vegetable growth period in a series of temperature indicators. Temperature is too high, will significantly affect the pollination, resulting in falling flowers, especially at high night temperatures will cause leggy. Winter temperatures are often low, resulting in cold root, such as the root of cucumber was water-like, like frozen Baibu Bu. Low temperature also shows leaf color is not normal, fruit deformities, especially in winter seedling, if there is no suitable temperature, will affect flower bud differentiation, resulting in deformed fruit, so a year before the Spring Festival, a fruit malformation fruit rate is high. Insulation work can be covered by insulation at night, such as stamped grass, or stoves and other methods to improve the greenhouse temperature. What should be specially pointed out here is that the fire in the shed should not be warmed up. To set fire fighters, the interfaces of fire fighters should be sealed to prevent harmful gases from leaking into the shed and causing poisoning to people and vegetables. Second, the light management When the lack of light, that is, when the fog or cloudy even when the shed lack of temperature and light, low photosynthesis of vegetables, plant weakness, the performance of flowering fruit, the emergence of deformed fruit, cracked fruit. In addition, the survey found that cucumber seedling encounter even cloudy, some farmers in order to save the bed insulation, shelter during the day is not exposed