AS 2303:2018 pdf free
AS 2303:2018 pdf free.Tree stock for landscape use
tree stock supporting its above-ground parts in an upright approximately vertical position displaying no stem breakage, injury or loosening of roots in the growing media
Note 1 to entry: Where practical, one may be informed of the self-supporting nature of the tree by deflecting the tree side to side by up to 30 degrees, or as far as the flexibility of the tree allows, at 80 % of the trunk height,making sure the pressure is always at right angles to the stem, the rootball should not lift off the ground. After which the tree returns to an approximately vertical position (+/- 15 degrees) and displays no loosening or failure of roots in the growing media.
Note 2 to entry: Any artificial support used in tree production should allow flexing of the stem as much as possible without stem breakage or injury.
damage that compromises the health and/or structure of the tree stock
Note 1 to entry: Practices or circumstances that may cause significant injury include damage caused by sunscald,wind burn, hail, water, heat, pesticides, fertilizers, pests, diseases, mechanical and physical handling and ties, stakes and labels.
This Section specifies the above-ground and below-ground criteria for tree stock assessment, which are necessary for determining quality tree stock for landscape use.
Those involved in production, design, procurement, planting and management of trees should have a comprehensive understanding of this Standard. Specialist advice should be sought where necessary.
Above- ground and below-ground criteria should be considered part of nursery production systems.Alternatively, these criteria may be incorporated into QA accreditation programs or used to assess tree stock at dispatch (see Section 6).
Tree stock shall be true to type. Individual tree stock or batches of tree stock per variety shall be clearly labelled with correct botanical nomenclature.
Where common names are used, they should only be used as an adjunct to the botanic name of the tree.
NOTE The National Plant Labelling Guidelines contains information on determining correct botanic nomenclature [4].AS 2303 pdf free download.
