T/BJZMXH 505-2022 Active Group standards

T/BJZMXH 505-2022 The pruning and shaping techniques for pine plants are as follows

Publish Date: 2022-12-01 Implement Date: 2022-12-31 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/BJZMXH 505-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Seeds, seedlings, and nurseries

ICS Name: Plant cultivation

Publish Date: 2022-12-01

Implement Date: 2022-12-31

Pages: 13 pages

Scope

Scope: This document specifies the requirements for selecting tree stumps, transplanting and planting, post-transplantation care, pruning and shaping, disaster prevention and control, and nursery preparation of pine species (Pinus Linn.). This document applies to large-scale pine species pruning and shaping. Main technical content: 4. Tree stump selection 4.1 Selection of suitable species for shaping: Common species include Chinese fir, Huashan pine, and black pine. 4.2 Selection requirements: Based on cultivation objectives and specifications, select robust, disease-free, and pest-free plants with distinct layering and uniform branching on the main trunk. 4.3 Classification: According to the number of basal branch stems, they can be divided into single-trunk seedlings and multi-trunk seedlings. 4.4 Selection of single-trunk seedlings 4.4.1 Small-sized materials should be able to create 1–3 layers with approximately 1–6 cloud plates. Select plants with a height of less than 3 m, a diameter of more than 8 cm, and a crown width of more than 1.0 m. 4.4.2 Medium-sized materials should be able to create 3–6 layers with approximately 3–10 cloud plates. Select plants with a height of 3–5 m, a diameter of more than 12 cm, and a crown width of more than 1.5 m. 4.4.3 Large-sized materials should be able to create 4–8 layers with more than 7 cloud plates. Select plants with a height of more than 5 m, a diameter of more than 15 cm, and a crown width of more than 2.5 m. 4.5 Selection of multi-trunk seedlings 4.5.1 The number of main trunks should be greater than or equal to 2. The diameter ratio of each main trunk should not exceed 2:1, and the diameter of each trunk should be greater than 8 cm. 4.5.2 The spacing between main trunks should be appropriate, with an irregular polygonal arrangement on the surface. The branches on the outer side of each trunk should be uniform and complementary. 4.5.3 For multi-trunk materials of different heights, refer to the