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刺槐硬枝属难生根类型。繁育刺槐苗木主要靠播种和嫁接。笔者经过几年来试验研究,在三月中下旬,采用一年生1～2cm 粗的刺槐苗干,截成长18～20cm、下切口为马耳形的插穗;用250～500ppm 的萘乙酸溶液浸泡下切口12～24小时;在事先造好墒情的畦内扦插、盖膜,后经破膜放芽、浇水、掀膜等管理。苗木成活率可达85%以上;当年苗木可达地径1～2.5cm,高2.0m 以上,为繁育良种刺槐找到了一种既快又好的方法。
Robinia pseudoacacia hard root is difficult to type. Breeding of acacia seedlings mainly rely on planting and grafting. The author after several years of experimental study, in late March, using annual 1 ~ 2cm thick acacia seedlings cut, cut 18 ~ 20cm growth, the incision for the Mal-shaped cuttings; with 250 ~ 500ppm naphthalene acetic acid solution under the incision 12 ~ 24 hours; in advance to make a good moisture within the cuttings, cover film, after the rupture of buds, watering, film and other management. The survival rate of seedlings can reach more than 85%; when the seedling up to 1 ~ 2.5cm in diameter, 2.0m high, find a good and fast method for breeding elite Locust.