The standards for Thien Truong grafted coffee seedlings produced from nurseries are announced by the Lam Dong Department of Cultivation and Plant Protection. Specifically, the rootstock tree must be 6 - 8 months old with 6 - 7 pairs of leaves; the rootstock diameter must be more than 3 mm; the grafted shoot height must be more than 10 cm; the tree must be trained in sunlight for 10 - 15 days; the grafting time must be at least 40 - 45 days before leaving the nursery...
Source: https://baolamdong.vn/kinh-te/202506/bao-lam-ho-tro-trong-moi-16-ha-ca-phe-ghep-thien-truong-62d127b/
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