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cách trồng cây lâm nghiệpkinh nghiệm trồng cây lâm nghiệpcẩm nang trồng cây lâm nghiệpđịnh mức trồng cây lâm nghiệpmô hình trồng cây lâm nghiệpkỹ thuật trồng cây lâm nghiệptrồng cây lâm nghiệp giá trị caotrồng cây lâm nghiệp hiệu quả Roots separated from the soil in which they were grown before they are planted Survival depends on quick reestablishment of functional contact between the roots and the soil Bare root Vs. Containerized Containerized: Extended planting season, better control of germinationgrowing conditions, shorter nursery rotations, uniformity of sizecondition, undisturbed roots, protection of roots
After two growing seasons in the field Transplanted seedling Direct-seed Two types… Bare-rooted seedling Containerized seedling Containerized Seedlings Moved to the field in the soil that they were grown Planted with the soil still attached to the roots Bare Root Seedlings Roots separated from the soil in which they were grown before they are planted Survival depends on quick re-establishment of functional contact between the roots and the soil Bare root Vs Containerized Containerized: Extended planting season, better control of germination/growing conditions, shorter nursery rotations, uniformity of size/condition, undisturbed roots, protection of roots Bare-root: cheap to produce, low bulk, easier to transport & handle in field Differ from temperate regions, There is no winter resting period in tropical countries so bare root seedling rarely survive and mainly container plants are produced Containerized seedling Seed collection Seed storage Pre-treatment of seeds Sowing the seed Container preparing Transplanting germinated seedlings Tending Quality of mother trees; timing o Low moisture (4-12%); low temp (