Method for dwarfing cultivation of persimmon trees

The invention discloses a persimmon tree dwarfing cultivation method which comprises the following steps: in the middle ten days of March of the first year, seeds of a rootstock are sown in a hole tray after being stored in sand, and the hole tray is placed in a greenhouse for temperature control and moisture preservation; in mid-to-late April, when 3-5 true leaves grow on the rootstock seedlings, the rootstock seedlings with soil lumps are transplanted to the field, double-row field planting is carried out, thorough irrigation is carried out once after planting, and then management is carried out according to seedling conditions; in mid-to-late February of the next year, dwarf interstock rootstocks are taken as scions to be grafted with base stock seedlings, interstocks which fail to be grafted are screened out on the 30th-45th day after grafting, and soil loosening and fertilization are conducted on seedlings which are successfully grafted; in mid-to-late February of the third year, scions of cultivated var