Method for efficiently breeding thin-shelled pecan grafted seedlings

The invention belongs to the technical field of grafting, and discloses a method for efficiently breeding thin-shelled pecan grafted seedlings. The method comprises rootstock cultivation and secondarygrafting; a secondary grafting method is adopted, grafting is carried out for two times in a row in a year, and namely spring stem grafting and autumn bud grafting are carried out. Via the rootstockcultivation and the secondary grafting, grafting survival rates are over 93%, and a seedling growing period is 3 to 4 years; the grafting survival rates are improved remarkably, the seedling growing period is notably shortened, nursery stock quality is substantially enhanced, and seedling growing cost is greatly saved. Via the method disclosed in the invention, rootstock quality is improved significantly via application of base fertilizer and topdressing; grafting rates can be increased by more than 20%; via the method disclosed in the invention, the grafting survival rates are improved remarkably by at least 40% perce