T/JZGY 004-2017 Active Group standards

T/JZGY 004-2017 Jinzhou peach tree pruning and shaping technical regulations

Publish Date: 2017-10-18 Implement Date: 2017-10-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/JZGY 004-2017

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Integrated agriculture and forestry

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2017-10-18

Implement Date: 2017-10-10

Scope

Main Technical Content: 1. Scope: This standard specifies the main tree shapes and pruning techniques for peach trees. It applies to the peach-producing regions of Jinzhou, Liaoning, and surrounding areas. 2. Tree Shapes 2.1 Tree Shape Types: The main tree shapes used in production include the open-crown shape and the "Y"-shaped crown. 2.2 Tree Structure 2.2.1 Open-Crown Shape: The main trunk height is 40cm–50cm, with three main branches distributed evenly on the trunk, each occupying a 120° angle and having similar growth vigor and healthy development. The opening angle is 50°–60°, and each main branch is equipped with 2–3 side branches or directly bearing fruit clusters. The first side branch is 60cm–70cm from the trunk. The second side branch is 60cm–80cm from the first side branch, located on the opposite side. The first side branches on the three main branches extend to the same side as the main branches. The suitable planting density is 3m × 4–5m, with a tree height of approximately 2.5m. 2.2.2 "Y"-Shaped Crown: The main trunk height is 40cm–50cm, with two main branches extending toward the row, at an angle of approximately 60°. Side branches or directly bearing fruit clusters are arranged on the main branches. The suitable planting density is 1.5m–2m × 3m–4m. 3. Shaping 3.1 Open-Crown Shape 3.1.1 After planting, prune the seedling at a height of 50cm–60cm above the ground. Select three well-positioned main branches from the 7–10 full leaf buds below the pruning cut as the shaping zone. When the main branches reach 50cm, pinch them to promote the growth of secondary shoots. 3.1.2 In winter pruning, select suitable extending branches and remove competing branches. 3.2 "Y"-Shaped Crown 3.2.1 After planting, select full leaf buds 50cm–70cm above the ground as the shaping zone. After sprouting, select two healthy branches extending toward the row with suitable angles and tie them to train as main branches. When the main branches reach 50cm,