Treatment of seedlings: The seedlings bought must be treated in a timely manner. The main tasks are: 1. Pruning of the crown: The useless old branches, diseased branches, leggy branches, slender twigs will be cut off; some of the long branches will be retained. Short cuts. The purpose of pruning is, on the one hand, to cultivate a tree frame that you like by pruning and shaping, so that you can achieve high height, low height, and sparse density; on the other hand, you can adjust the balance of the tree (when you injure part of the root system, you must cut off the corresponding Partial foliage to reduce moisture evaporation and nutrient consumption. 2. Root pruning and soaking: Cut and severely worn roots are cut with sharp pruning shears. For abnormally growing partial roots and too long. The roots should be trimmed to facilitate the distribution of the roots in the planting pits. The large shears used for trimming should be disinfected with disinfectant; the roots of seedlings should be soaked with rooting powder or water for a certain period of time before planting. 3, the damaged bark timely disinfection with disinfectant treatment; 4, timely planting: If due to special circumstances temporarily can not be planted, like formal colonization as the first planted in other places, at the appropriate time and then officially planted. Fourth, seedling colonization: 1, digging and planting points (ditch): According to the size of the seedling soil ball or root excavation planting hole (ditch), the minimum depth of not less than 60 cm, the width of the root system depends on the size or soil ball. The top 30 cm thick topsoil is crushed, set aside, mixed with spare fertilizer and backfilled, and then covered with a layer of finely divided prime soil; 2. Plant the seedlings, straighten, fill and fill the soil to cover the roots of the surface at any time. 2-5 should be appropriate; 3, fill the root water, and fill the pit or crack due to irrigation sinking; 4, the tree with struts to support, to prevent the wind from lodging, affect survival; 5, on the big For trees with poor specifications or trees with poor root regeneration ability, roots should be poured with rooting powder or a liquid of vitalizer and anti-rot agent, and if necessary, invigorating roots should be used to inject the liquid.
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