T/YNRZ 023-2023 Eggplant dwarfing cultivation technology specifications for tree shape training

Scope

Scope: This document specifies the planting density, trunk establishment, main branch cultivation, tree shape cultivation, flower removal and fruit removal, and height control techniques for the cultivation of dwarfed tree forms of egg yolk fruit in Yunnan Province. This document is applicable to the cultivation of dwarfed tree forms of egg yolk fruit in Yunnan Province. Main technical content: 1. Terms and definitions: There are no terms or definitions that need to be defined in this document. 2. Planting density: The planting density is 4 m to 5 m × 6 m to 7 m. 3. Trunk establishment: Cut the trunk at a height of 60 cm to 80 cm above the ground. 4. Main branch cultivation: Leave 2 to 3 branches in different directions and at similar horizontal levels at the top of the trunk as main branches. 5. Tree shape cultivation: 5.1 Cut the main branches at a height of 20 cm to 30 cm above the trunk, leaving 2 to 3 branches in different directions and without overlapping as secondary branches. Continue to cultivate the next level of secondary branches, ensuring that there are 120 to 150 secondary branches after 3 to 4 years of planting. 5.2 Remove diseased and pest branches and weak branches, and reach 150 to 200 secondary branches after 4 to 5 years. 5.3 Remove diseased and pest branches and weak branches, ultimately achieving a high-yield tree shape with 160 to 250 secondary branches. 6. Flower and fruit removal: 6.1 Remove all flowers and young fruits in the first three years of planting. 6.2 Remove some flowers and fruits in the fourth to fifth years of planting to ensure that the tree can grow normally and bear a small amount of fruit. 6.3 After the high-yield period, remove all out-of-season flowers from October to November. 7. Height control: Control the tree height to 3.0 m to 3.5 m.

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