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一、保温增光:温室冬茬番茄一般在低温、弱光条件下生长,极易形成黄化、徒长、细弱的植株,果实小而空。因此,定植后要保光增温。定植初期室温宜高些,白天保持22～28℃,夜间18～20℃;缓苗后白天为20～22℃,夜间15～16℃,进入座果期应加强保温防寒管理,室温白天保持在22～25℃,夜间18℃左右,以减少植株自身消耗养分。在保证室温条件下应加强光照,白天尽量早揭覆盖物,并及时清除薄膜或玻璃内面水珠和外面的灰尘,保持良好的透光性。
First, heat and light: the greenhouse winter stubble tomatoes are generally grown in low temperature, low light conditions, easily formed yellow, leggy, weak plants, fruit small and empty. Therefore, after planting to protect light warming. During the early stage of planting, the room temperature should be higher, keep 22 ~ 28 ℃ during the day and 18 ~ 20 ℃ during the night; after the seedling should be stored at 20 ~ 22 ℃ during the day and 15 ~ 16 ℃ during the night, 22 ~ 25 ℃, about 18 ℃ at night, in order to reduce their own consumption of nutrients plants. Under the condition of ensuring room temperature, the light should be intensified. As early as possible during the day, the covering should be exposed as soon as possible, and timely remove the dust and dust on the inner surface of the film or glass to maintain good light transmission.