A kind of shaping and pruning method of North American Begonia seedlings

Abstract

The invention discloses a method for training and pruning North American crabapple seedlings. The method includes the steps that grafted one-year seedlings of the North American crabapples are planted, and then trunks are headed according to targets; buds below grafted points are fully removed in spring, and pruning is carried out during high-temperature dormancy in July in summer; after leaves fall in autumn and nutrients fully reflux, 2-3 branches are cut back at the portion 50-60 cm above each branching point, and remaining branches in the center are sequentially pruned into a pagoda shape; when sprouting occurs in the next year, lateral buds growing on main trunks can not be reserved and are fully removed in time, the portion 60-70 cm above each crown of the second year is cut back to serve as a later center crown, branches on the peripheries and branches in the middles are pruned according to the ratio of the next year and so on, and crowns are formed after pruning is carried out 3-4 times. The method is suitable for training and pruning the crowns of the North American crabapple seedlings, rapid growing of North American crabapple can be guaranteed, the good crown shapes can be rapidly formed, the price of the seedlings is increased, and seedling-nursery-leaving time is shortened.

Description

technical field [0001] The invention belongs to the technical field of shaping and pruning of seedlings, and in particular relates to a method for shaping and pruning of North American crabapple seedlings. Background technique [0002] Ornamental trees are the general term for all woody plants, and ornamental trees generally refer to all ornamental woody plants, including various trees, shrubs, woody vines and bamboos. The trunk of the tree is obvious and upright, the branches are luxuriant, the plants are tall, and the branches form a crown at a higher place from the ground, such as pine, fir, oak, poplar, elm, beech, locust tree, etc.; shrubs are generally short and have no obvious differences. Trunk, with clusters of branches near the ground, such as winter jasmine, wintersweet, hemp leaf hydrangea, euonymus, ten meritorious service, etc.; woody vines have slender stems, cannot stand upright, grow on the ground or use different attachments, such as ground Jin, wisteria, ...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method for shaping and pruning North American crabapple seedlings, aiming to solve the problems that the later trimming of North American crabapple seedlings affects growth and crown shape is not beautiful

Images