一、育苗。在春分至清明间将种子去杂,用30℃左右温水浸种,混沙催芽育苗。二、移栽。当苗子长到5～6厘米高时,选阴天或傍晚带土移栽,并浇水。三、定干。7月中下旬,待香椿苗80～90厘米高时,用PP_(333)喷洒苗木顶茅,进行药剂矮化。四、假植。霜冻之前,将苗木保持侧根30 First, nursery. In the vernal equinox to the Ming and Qing dynasties to the seeds, mixed with warm water soaking 30 ℃, mixed sand germination nursery. Second, transplanting. When the seedlings grow to 5 to 6 cm high, choose cloudy or evening soil transplanting, and watering. Third, set dry. In late July, when toon seedlings 80 to 90 cm high, with PP_ (333) spraying seedlings topdressing agent dwarfing. Fourth, fake plants. Keep the nursery shoot 30 before frost