When planting -

Attention to detail

After the rooting water is poured, the water is poured and the water is poured immediately after the planting to ensure that the roots are tightly integrated with the soil and promote the development of the root system. Continuously irrigate 2-3 times of water, and timely seal the disk with fine soil after irrigating.

If the frozen soil is frozen before the soil is frozen, it should be poured once more. The time for irrigating the frozen water should not be too early, and it is generally advisable to use daily freezing and freezing, so that after freezing, a permafrost layer will be formed around the roots to maintain the relatively stable root temperature and not be affected by sudden changes in the outside temperature.

When the backfill soil is planted, the soil shall be layered and compacted, and the soil shall be promptly filled when the soil sinks after irrigation. The frozen soil shall be completely crushed, and a large frozen block shall be picked up to avoid gaps caused by the backfill of the frozen soil and make the roots receive wind. .

Planting depth should be reasonable Planting depth should generally be flush with the original soil mark, or slightly shallow but not deep, so as to avoid suffocation of seedlings and to avoid water accumulation.

Handle pruning wounds in time regardless of roots or branches. Apply pharmacological agents (pastes) immediately after pruning to prevent water loss causing rot of dead branches and roots.

Arrangements for planting and advancement of seedlings should be reasonably planned so that nursery stocks are readily available, planted with seedlings, and nursery stocks should be arranged in a reasonable manner. The seedlings will be planted on the day and will not be backlogged overnight.

After planting -

Strengthen cold protection

After the tree disk is planted and covered, the base of the seedlings is covered with peat soil, leaves, straw or plastic film, which can reduce surface evaporation, keep the soil moist and increase the survival rate of transplanted trees. When the soil begins to thaw in early spring, heat preservation materials are removed in time to facilitate soil thawing, increase ground temperature, and promote root growth.

After the rhizome is irrigated, frozen water is combined and sealed. The mound of 80-100 cm in diameter and 40-50 cm in height is cultivated in the rhizomes of the trees to prevent cold-frozen roots and reduce the evaporation of soil moisture.

Covering the soil Before the land is frozen, the branches and shrubs with soft branches and shrubs can be overwhelmed and fixed. Cover the soil 40-50 cm and gently pat. This method can not only prevent freezing, but also maintain the humidity of branches and prevent tipping. Poor cold-resistant saplings and vines are used to prevent cold.

Wind barriers can be made of straw, plastic strips, etc. Commonly used pine or bamboo sticks or nails are tied with wooden piles to prevent winds from falling down. Wind barriers should be located on the northwest side of the nursery. The height of the wind barrier should exceed the height of the tree. The effective distance for cold protection is generally 10 times the height of the wind barrier.

Whitening the trunk with lime and lime sulfur to whiten the branches can reduce the damage to the sun's skin due to the large temperature difference between day and night, and can also kill some of the overwintering pests and diseases.

Cultivation of crescent-shaped mounds inconveniently bends and compresses buried plants to prevent cold. Before the soil is frozen, a crescent-shaped mound with a height of 30-40 cm can be bent southwards from the trunk. In the early spring, the wind can be blocked, reflected and accumulated heat, so that the soil can be frozen earlier and avoid freezing and freezing.

Wrap dry with non-woven fabric, Zhenzhu Mian, felt cloth wrapped around the trunk and then wrapped with a layer of plastic film, can play a better wind and frost. The commonly used method of wrapping straw ropes or grass pieces on trunks is not recommended since the cold prevention effect is general and affects the detection and prevention of stem pests.

Antifreeze and snowfall During or after heavy snowfall, the snow on the branches should be promptly knocked out to prevent the snow from overstressing for a long time, making the branches bent and making it difficult to restore the original shape. In particular, evergreen trees with dense foliage should be organized in time to beat snow with bamboo rafts and snow-clad branches. For iced branches, you can't beat them, but you can't move them; if it is too heavy, use bamboo sticks to support the trunk.

Snow piled on the base of the tree can maintain a certain low temperature at the base of the tree, avoiding the effect of excessive cold and strong winds. In the early spring, it can moisten and protect the earth, lower the soil temperature, and prevent buds from sprouting prematurely and endangering the spring and cold.

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