1.生长周期黄姜从发芽到种子成熟,一般一年即可完成一个生长周期。萌芽期:根状茎播种后,在土壤湿度处于80%以上,土壤温度10—18℃的条件下,20—25天即可萌发出新芽。种子播种后,在土壤湿度处于85%以上,土壤温度20—25℃条件下,2—50天发芽出苗。茎叶生长期:地上茎叶自幼苗出土后开始生长,其速生期在5月到7月,10月下旬开始落叶。叶片随整 1. Growth cycle Turmeric from germination to mature seeds, generally one year to complete a growth cycle. Germination: Rhizome sowing, in the soil humidity is above 80%, soil temperature 10-18 ℃ conditions, 20-25 days to germinate sprouts. Seed sowing, in the soil humidity is above 85%, soil temperature 20-25 ℃ conditions, 2-50 days germination. Stem and leaf growth period: Aboveground stem and leaf began to grow after the young seedling was excavated. Its fast-growing period started from May to July and started deciduous in late October. Leaves with the whole