First, the transplant time

The best time to transplant big trees should be from late February to early March in early spring every year. At this time, the trees are dormant or semi-dormant, with weak growth potential and slow metabolic activity. Shortly after transplantation, the temperature gradually warmed up, the activity of trees gradually became stronger, and trees were easy to survive. At present, due to the improvement of transplantation technology and scientific maintenance medication, it can be transplanted all year round.

Try to reduce transplanting trees in summer, because the temperature is high and transpiration is strong at this time, so it is difficult to solve the supply of water and nutrients in trees after transplanting, and it is difficult to survive and the maintenance cost is high.

Second, take the pile.

1. Cutting branches is an important part of transplanting ancient stumps, which is beneficial to reduce water transpiration and nutrient consumption of leaves and maintain the balance between supply and demand in trees. According to the age and species of trees, the amount of pruning is also different. It is best not to leave branches on old trees that have been weak for hundreds of years. You can leave some branches for big trees, less branches for broad-leaved trees and more branches for conifers in the prosperous period because of the large transpiration. It is necessary to remove diseased dead branches, long branches and cross branches. After that, apply Kuaihuolin Healing Cream to the wound, which can not only disinfect but also protect the wound from pests and diseases and rain erosion.

2. The diameter of the transplanted soil ball is about 6 ~ 8 times of the diameter of the stump. If the diameter of the stump is 30 cm, the diameter of the soil ball should be 1.8 ~ 2.4 meters. Trees with more lateral roots have larger soil ball diameter; For trees with few lateral roots, the diameter of soil balls can be slightly smaller, but they should be dug deeper. When digging, try to avoid contact with loose soil balls. When digging to the depth of 1/2, soil balls should be tied with soaked straw curtains and ropes. In order to reduce the transportation weight, the soil ball is smaller and smaller as it goes deeper, and it is made into a cone. It is best to cut off the roots with a saw to avoid damaging them. Spraying 65,438+0,500 times calcareous hair on the incision can promote the growth of new roots. After digging, the soil ball should be wrapped and bound with wet straw curtain and straw rope, which should be tied to the trunk with a height of 2 ~ 1.5 meters. Wet and tightly tied straw rope can not only prevent the soil from loosening, but also help to protect the trunk from collision, and can also avoid direct sunlight, which has a certain effect of heat preservation and moisture retention.

Before digging down the stump, it should be marked according to its orientation. After digging down and putting it down, the second planting should be carried out, and the branches that must be cut off for the first time but not cut off should be cut off. The wound should also be disinfected and protected with Kuaihuolin Healing Ointment.

Third, traffic.

Pay attention to the following three points during transportation: First, handle with care when loading and unloading, and don't touch the soil ball at the root or damage the trunk; Secondly, in order to prevent the collision between big and old piles and vehicles or big and old piles during transportation, it is necessary to pay attention to putting the buffer in place when loading, and tie and fix each pile; Three, in the process of transportation, water should be sprinkled on the soil ball and the trunk straw rope in time to keep the humidity.

Fourth, planting

(1) Dig a hole. It's best to dig a hole before the stump arrives. The width and depth of the tree pit must be greater than and deeper than the soil ball at the root of the tree stump. After digging the pit, fill it with mycorrhizal soil, add 5 kg of decomposed animal manure and 2 kg of phosphate fertilizer, and then add water to fill the pit for later use.

(2) planting. Gently lift (support) the stump with crane or manpower, and adjust the planting direction according to the orientation marks made when transplanting the original seedlings (planting in the original direction, that is, those facing north still face north). Use scissors to cut open the packing straw curtain and dressing rope on the soil ball, then fill the stable soil into the pit, step on it and pour it thoroughly, so that the tree and soil can be closely combined. Set up a tripod around the big tree to support the trunk.

Verb (abbreviation of verb) management and protection

1. Watering: For newly planted trees, the water absorption capacity is weak due to root damage, and the soil moisture is high in spring, so it is not advisable to water too much, otherwise it will easily cause root rot. Generally speaking, in addition to watering 1 time during planting, watering for the second time after 1 week, and watering for the third time after1day, the interval of watering should be gradually widened, and the straw rope on the trunk should be watered frequently at the same time. Special reminder: when the water permeates for three times before watering, it is necessary to add the rooting agent and regeneration agent of the happy forest to speed up the root system recovery and improve the survival rate of transplanting.

2. infusion. After transplanting trees, when the temperature is stable above 5 degrees, the infusion or activation solution of Happy Forest should be added to the trees in time to supplement nutrition and water and adjust the growth potential of the trees. In order to keep the balance of nutrition and water after transplanting and improve the survival rate of transplanting.

3. Build a shade shed: In mid-April, the weather turned warmer, the temperature gradually increased, and the transpiration of trees gradually increased. At this time, it is necessary to set shade sheds in three directions (leaving the northwest for photosynthesis) and at the top of the tree, which not only avoids direct sunlight and prevents the cortex from being burned, but also ensures the balance between supply and demand of water and nutrients. 10 months later, the weather gradually turned cold, and the shade shed can be removed.

4. Bud smearing: After the end of March, the adventitious buds on the trees will gradually become new shoots. If there are too many new shoots, you should erase them. The general principle of wiping the tip is to keep the secret and sparse, to keep the weak and strong, and to keep the top in the base. Leave 5 ~ 7 buds on a branch.

5. Foliar fertilization: The preparation method of foliar liquid fertilizer is to dissolve 1 kg urea and 4 g spring rain 1 in 200 kg water, and the spraying time should be chosen at 7-9 am and 5-7 pm on sunny or cloudy days. At this time, the leaves have strong vitality and good absorption ability.

6. Overwintering: Before winter comes, the trunk is coated with the white agent of Happiness Forest and wrapped with straw. In case of freezing and snowing weather with extremely low temperature, besides sweeping snow, smoking can also be used to keep out the cold.