T/YSHTY 0001-2023 Active Group standards

T/YSHTY 0001-2023 Yingshan County late-maturing citrus Da'yigan pruning and shaping technical specifications

Publish Date: 2023-11-08 Implement Date: 2023-11-08 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/YSHTY 0001-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2023-11-08

Implement Date: 2023-11-08

Scope

Scope: This standard specifies the terms and definitions, main tree structure characteristics, and techniques such as shaping and pruning for late-ripening citrus Da Ya Citrus in Yingshan County, including post-pruning management. This standard applies to the shaping and pruning management of late-ripening Da Ya Citrus production areas in Yingshan County. Main technical content: 4. Shaping The principle of shaping is to adapt to local conditions, select cultivars and growth habits according to the variety, and achieve ventilation and light penetration, three-dimensional fruiting, and labor-saving and efficiency-enhancing goals. The common and suitable tree shapes for late-ripening Da Ya Citrus in Yingshan County are natural open crown and natural round head. Shaping involves cultivating the main trunk and framework branches of the tree through a series of operations to simplify its structure. 4.1 Main tree shapes of Yingshan Da Ya Citrus 4.1.1 Natural Open Crown The natural open crown typically features three main branches without a central trunk. The trunk is open without exposing the branches. Shaping work is carried out over three years: - First year: Focus on trunk setting, selecting main branches, and pruning, bud removal, and sprout removal. - Second year: Shorten main branches to extend side branches, select secondary main branches, and prune, bud removal, and flower thinning. - Third year: Shorten main branches to extend side branches, select secondary main branches, and prune, bud removal, and flower thinning. 4.1.2 Natural Round Head The natural round head is the closest to natural shaping. After planting, set the trunk at 30–40 cm, and let two to three strong main branches grow naturally from the trunk. The main branches should be spaced 10–15 cm apart and grow in one direction. In the second or third year, keep one to two main branches, ensuring they don’t overlap. Each main branch should have a base angle of approximately 40° and g