The invention relates to a method for promoting early fruiting of pecans. The method comprises the following steps: carrying out lamination and
germination acceleration on the pecan seeds; when the
bud seedlings germinate to a plurality of new leaves,
cutting the root of the
bud seedling and dipping the
bud seedling into a rooting solution, and then
transplanting the bud
seedling to a small root control device for rooting; when the nursery stocks grow to a proper roughness, carrying out square bud
grafting; in the same year when the bud
grafting is carried out, moving the variety seedlings outfrom the small root control device to prune the root after the fallen leaves are fallen, dipping the seedling into the rooting solution and
transplanting the seedling to a large root control device for cultivation; according to different periods of bud
grafting growth, sequentially spraying a
growth promoting liquid for the first time, carrying out pinching for the first time, spraying a
growth promoting liquid for the second time, carrying out pinching for the second time; in the same year, after leaves fall, trimming the root again, dipping the root into the rooting solution and
transplanting the seedling to an
orchard for field planting. According to the invention, the two kinds of root control devices are adopted for planting and then transplanting and root
cutting technologies are adopted, so that the growth of the nursery stock can be controlled, and the
lateral root quality of the nursery stock can be rapidly improved, the pecan trees in the united states can be rapidly formed,and the purpose that the fruits can be hung in 2-3 years in advance compared with conventional cultivation management can be achieved.