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(5)苗期的管理 苗期管理首先要注意温度问题。在播种至齐苗期,白天的适宜温度是20～25℃,夜间的适宜温度为16～15℃;在齐苗至分苗期,白天的适宜温度是18～23℃,夜间的适宜温度为15～13℃;在分苗至缓苗期,白天的适宜温度是20～25℃,夜间的适宜温度为16～14℃;在缓苗至定植前10天,白天的适宜温度是18～23℃,夜间的适宜温度为15～12℃;在定植前10天至定植期,白天的适宜温度是15～20℃,夜间的适宜温度为10～8℃。当幼苗长到1～2片真叶时,分苗在营养钵内,摆入苗床。缓苗后划锄
(5) seedling management Seedling management should first pay attention to the temperature problem. The suitable temperature during daytime is 20-25 ℃ during sowing to Qi-ding stage and 16-15 ℃ at night. The suitable temperature during daytime is 18-23 ℃ during Qi-miao to sub-seedling stage, the suitable temperature at night is 15 ~ 13 ℃; in the sub-seedlings to hurried seedling stage, the appropriate temperature during the day is 20 ~ 25 ℃, night temperature is 16 ~ 14 ℃; Huanmiao to 10 days before planting, the daytime temperature is 18 ~ 23 ℃, suitable temperature at night is 15 ~ 12 ℃; 10 days before planting to colonization, the appropriate temperature during the day is 15 ~ 20 ℃, night temperature is 10 ~ 8 ℃. When the seedlings grow to 1 to 2 true leaves, the seedlings in the nutrient bowl, placed in seedbed. Huanmiao after hoeing