一、选地与整地苗圃应选建在土层深厚、排灌方便、地势平坦的地方。春播应在头年秋整地做床;秋播应提前20天翻耙地,做床待播。做床时,先翻地20～30厘米深,耙细整平后做成宽1～1.2米、高10～15厘米、长5～20米的苗床。床与床之间留50厘米宽的作业道。二、春季育苗1.种子处理:西丰县播种期为4月25日～5月1日。在播种前60天(2月下旬)进行种子层积处理, First, the selection and site preparation Nursery should be selected in the deep soil, irrigation and drainage convenience, flat terrain. Spring sowing should be done in the first year autumn bed; autumn sowing should be rake 20 days in advance to do bed to be sowing. When doing bed, first turn to 20 to 30 cm deep, harrow fine flat made after the width of 1 to 1.2 meters, 10 to 15 cm high, 5 to 20 meters long seedbed. Stay 50 cm wide between the bed and the bed. Second, the spring nursery 1. Seed Treatment: Xifeng sowing for April 25 ~ May 1. Seed layering was performed 60 days before sowing (late February)