一、发芽期的管理1、从播种到出苗。首先是温度管理。为了迅速出苗,喜温菜类宜维持在30℃左右;耐低温菜类宜维持在22℃左右。其次是床土的管理。要防止土面裂缝,子叶带壳,要求保持土壤湿润,分次上土,保证子叶脱壳,当种子开 First, the management of germination 1, from sowing to emergence. The first is temperature management. In order to emerge quickly, the thermophilic should be maintained at about 30 ℃; low temperature resistant vegetables should be maintained at about 22 ℃. Followed by bed soil management. To prevent soil cracks, cotyledons shelled, require keeping the soil moist, graded soil, to ensure the cotyledons shelled when the seeds open