T/CXJG 0003-2023 Active Group standards

T/CXJG 0003-2023 Australian Macadamia Part 3: Technical Regulations for the Reformation of Low Yield Forests

Publish Date: 2023-07-01 Implement Date: 2023-07-10 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/CXJG 0003-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2023-07-01

Implement Date: 2023-07-10

Scope

Main Technical Content: 1. Scope: This section specifies the techniques and requirements for the transformation of low-yielding macadamia nut orchards in the Wuzhou region. It applies to the transformation and management of low-yielding macadamia nut orchards in the Wuzhou area. 2. Normative Reference Documents: The contents of the following documents are essential provisions of this document through normative reference. Among them, the referenced documents with a specified date only apply to the version corresponding to that date; the unspecified date referenced documents apply to the latest version (including all amendment lists) of these documents. 3. Terms and Definitions: The following terms and definitions apply to this document. 3.1 Low-yielding trees: Plants with a fresh fruit yield of less than 5 kg in the sixth year, 8 kg in the seventh year, and 10 kg in the eighth year and subsequent years. 3.2 Low-yielding orchards: Orchards where the proportion of low-yielding trees exceeds 50% due to improper variety selection or poor management. 4. Transformation Methods 4.1 Grafting and crown replacement: Conduct grafting and crown replacement for low-yielding orchards (trees) due to improper variety selection. 4.1.1 Preparation for grafting: Weed and fertilize the orchard once a month before grafting. Apply 1 kg/tree of high-nitrogen compound fertilizer by spreading or trench application. 4.1.2 Selection of rootstocks: Select 3–5 straight and smooth branches with a diameter of 3–10 cm as rootstocks for each tree. 4.1.3 Grafting layout: Select different grafting positions based on the size of the rootstocks, grafting 1–2 scions per rootstock. 4.1.4 Grafting time: Graft between November and April to avoid frost days, rainy days, and high-temperature days. 4.1.5 Selection of scions: Select scions from excellent fruiting single trees or scion nursery plants, choosing axillary buds that are full and one-year old sun-exposed semi-lignified or lign