Seedlings want safe wintering, and the maintenance and management in the winter is very important. The cold-resistance points during the winter planting of seedlings are introduced as follows.
The cold-resistance points in the process of planting winter seedlings
1.Ding root water pouring enough to soak: Immediately after planting, it should be permeated with water to ensure that the roots and the soil are tightly integrated, promote the development of the root system, and continuously irrigate 2-3 times of water. After irrigation, timely seal the tree tray with fine soil.
2. Pouring frozen water: When filling the root water, if the soil is dry before the soil is frozen, it should be poured once again. The time for freezing the water should not be too early, otherwise it will affect the cold resistance. Generally, it is advisable to fill with water during the “day-to-night and night-freezing†period so that after freezing, a permafrost layer will be formed around the roots of trees to maintain the temperature of the roots relatively stable and not to cause plant damage due to sudden changes in outside temperature.
3. Backfilling soil: The soil should be layered and compacted when planted, and the soil should be promptly filled when the soil is poured after irrigation. In winter construction, attention should be paid to smashing and smashing the permafrost and picking out large frozen blocks to prevent gaps in the permafrost causing the roots to receive wind.
4. The planting depth should be reasonable: Planting depth should generally be flush with the original soil mark, or slightly shallow but not deep, so as not to overdeep the seedling to suffocate and die, and to avoid accumulation of water.
5. Handle pruning wounds in time: Regardless of roots or branches, the wound healing agent/paste should be applied in time after pruning to promote wound healing and prevent the water from disintegrating causing the decay of dead branches and roots.
6. Properly arrange the progress of planting and seedlings: To achieve the seedlings on the go, with the planting, nursery stock approach to arrange reasonable, the day the seedlings arrived on the same day planting, no backlog of seedlings, not overnight.
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