T/YSHTY 0001-2022 Active Group standards

T/YSHTY 0001-2022 Cultivation and pruning techniques for late-maturing navel orange in Yingshan County

Publish Date: 2022-07-18 Implement Date: 2022-07-18 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 0001-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2022-07-18

Implement Date: 2022-07-18

Scope

Scope: This standard specifies the terms and definitions, main tree structure characteristics, shaping, pruning, and post-pruning management in the shaping and pruning of Da Ya Citrus, a late-ripening citrus variety in Yingshan County. This standard applies to the shaping and pruning management of Da Ya Citrus production areas in Yingshan County. Main technical content: 4. Shaping The principle of shaping is to adapt to local conditions, select varieties and growth habits according to their characteristics, and achieve ventilation, light transmission, three-dimensional fruiting, and labor-saving and efficiency-enhancing goals. The commonly used and suitable tree shapes for Da Ya Citrus in Yingshan County are natural open-crown shape and natural round-head shape. Shaping involves cultivating the main trunk and skeleton 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 Shape This shape typically features three main branches without a central trunk, with the trunk open and the branches exposed. Shaping is carried out over three years: - First year: Focus on trunk setting, selecting main branches, and removing buds, sprouts, and shoots. - Second year: Shorten main branches to promote lateral growth, select secondary branches, and remove buds, sprouts, and shoots. - Third year: Shorten main branches to promote lateral growth, select secondary branches, and remove buds, sprouts, and shoots. 4.1.2 Natural Round-Head Shape This shape closely mimics natural growth. After seedling planting, set the trunk height at 30–40 cm. Two to three strong main branches naturally emerge from the trunk, spaced 10–15 cm apart and growing in one direction each. In the second or third year, keep one to two branches per main branch, ensuring they don’t overlap. All main branches should have a base angle of approximately 40° and grow diagonally upward. A total of three to five