火炬树是北方干旱地区绿化的好树种,每年秋季种子成熟。由于外种皮有一层坚硬的蜡质,必须于播种前一周,将种子放80℃热水中浸泡,待水温降至能放手时,进行揉搓,去掉蜡质后,再用45℃温水浸泡两昼夜,捞出后混沙催芽。种沙比为1:2,上面盖塑料膜。以后每天翻动1～2次,待2～3天后,种子有一半裂嘴时即可播种。河北省一般在4月中、下旬播种,采用条播,行距25～30cm。播前圃地灌足底水,每公顷播种15kg左右,覆土1cm,稍镇压。经常保持土壤湿润,15天左右可出齐苗。幼苗出土后,要及时除草,控制浇水,苗高10～15cm时间苗,株距15cm;至7月份 Rhus typhina is a good species of afforestation in the northern arid area, with seeds ripening in autumn each year. As the outer seed coat has a hard wax, it must be in the week before sowing, the seeds put 80 ℃ hot water soak, until the water temperature dropped to be able to let go, rub, remove the wax, and then 45 ℃ warm water soak two Day and night, remove and mix sand sprout. Sand ratio of 1: 2, covered with plastic film. Flip 1 to 2 times a day afterwards, until 2 to 3 days later, the seeds can be planted when the mouth is half cracked. Hebei Province is generally in mid-April, late sowing, the use of broadcast, spacing 25 ~ 30cm. Sowing the foot of the former garden irrigation foot water, sowing about 15kg per hectare, soil cover 1cm, a little crackdown. Often keep the soil moist, 15 days can be out of Qi Miao. Seedlings unearthed, weeding should be promptly controlled watering, seedling height 10 ~ 15cm time seedlings, spacing 15cm; to July