三年桐(Aleurites fordii Hemsl.)的嫁接苗通常需要二年的培育。为加快良种繁育,降低育苗成本,我们进行了当年播种、当年嫁接、当年成苗出圃的“三当”育苗技术试验,并获得了成功。成苗率由原来的20～40％提高到80％以上。现将结果报道于下。 Three-year grafted seedlings of Aleurites fordii Hemsl. Typically require two years of incubation. In order to speed up the breeding of breeding seeds and reduce the cost of nursery, we carried out the experiment of planting seedlings of “Three Mages” when they were sown in that year, then grafted, and were successful. Seedling rate increased from the original 20 ~ 40% to 80% or more. Now the results reported below.