The vegetative growth period is characterized by the rapid expansion of trees and the formation of bones. Branches grow vigorously, with large new shoots, long internodes, large leaves, secondary or multiple growth and insufficient tissues.

The length of vegetative growth period of fruit trees varies with tree species, varieties and rootstocks. Whether fruit trees can bear fruit early depends on ecological conditions and management level. The application of dwarfing anvil and intermediate anvil is an effective measure for early fruiting. In addition, other techniques can also be used to promote the early fruiting of young trees. Although asexual propagation trees have the ability to blossom and bear fruit, they have no material basis for forming sexual organs at the initial stage of colonization, so they cannot blossom, and they need a certain period of vegetative growth to lay a good material foundation for the formation of flower buds. Therefore, in the young tree stage, if the growth and development of the plant can be strengthened and the nutrient accumulation can be promoted, on the basis of good nutritional status of the whole plant, some branches with strong local assimilation and accumulation ability will inevitably strengthen the accumulation of organic matter (sugar, hormones, amino acids, etc.). ) and mineral nutrients (phosphorus, potassium, calcium, etc. ) is in an active growth state. And coordinate and promote qualitative change under external conditions such as temperature, moisture and light, and enter the fruiting age at an early stage.