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Nursery nursery seedlings, at least a few years, such as some species of flowering shrubs. Generally, seedlings under three or four years old do not need to be reshaped and pruned less. In order to save nutrients, flowers or inflorescences are usually cut off. 3、 Seedlings over four years old need to be reshaped and pruned. The main purpose is to cultivate large seedlings with certain tree structure and shape. Some large seedlings or potted seedlings need to be cultivated into large seedlings with flowers or fruits. To meet these requirements, the seedlings must be reshaped and pruned.
1、 Significance of seedling pruning
The ideal trunk, plump lateral branches, perfect, symmetrical, compact, firm and beautiful tree shape can be cultivated by pruning.
Pruning can improve the ventilation and light transmission conditions of seedlings and reduce diseases and pests.
Pruning can make the plant dwarf.
2、 Seedling pruning
According to seedling growth and dormancy period is divided into growth period pruning and dormancy period pruning, also called summer pruning and winter pruning. Summer pruning is from April to October, winter pruning is from October to April. In the south, those that are not obvious in four seasons are called Summer scissors. Different tree species have different biological characteristics, especially different phenology. Therefore, the specific pruning time of a tree species should be determined according to its phenology, bleeding, wind cold, freezing injury and other specific analysis. General deciduous tree species are suitable for winter pruning, severe bleeding should be cut early or after bleeding, evergreen tree species are suitable for winter pruning and summer pruning.