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一、保温增光:寒冬栽培的番茄在低温、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℃;进入坐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、不低于15℃,否则易引起落花。
First, the heat insulation: winter cultivation of tomatoes grown in low temperature, low light conditions, easily formed yellow, leggy, weak plants, _ small and empty fruit. Therefore, after planting to protect the light, the early planting temperature should be higher at room temperature during the day to maintain 22 ~ 28 ℃, night 18 ~ 20 ℃; Huanmiao 20 ~ 22 ℃ during the day and night 15 ~ 16 ℃; Strengthen the insulation cold management, room temperature during the day to maintain at 22 ~ 25 ℃, about 18 ℃ at night, not less than 15 ℃, otherwise easy to cause falling.