Sugill is one of the state's priorities for the protection of trees, their beauty and the importance of greening trees in the garden. Due to the high cost and difficulty of construction of large-specified tree transplants, the focus on tree transplantation and post-conservation processes is expected to increase the survival rate. Here's a detailed list of the techniques used for the construction of the large-scale sprout transplant and for the management of conservation in the later stages。
1 large-scale sprout transplant season
Different times of transplants have a significant impact on the survival rate of sprouts. From plant ecology considerations, the best season for large-specified agill transplants ranges from fall or fall leaves in the autumn of the year to the period before the spring of the second spring, but, based on years of construction experience, the fall and winter agills are prone to drying or retracting in the summer or autumn, affecting the whole tree shape of the akills, although they have a high gestation rate at the beginning of the second year. This may be due to damage to some of the root causes, reduced mobility, reduced root pressure, long and cold winters, and lower intake of water and nutrients than vapour. So the best transplant in the aquarium was before its spring sprouting, so we chose to do it before and after the rain。
2 start-up and transport of large-scale sprouts
2. 1 large-scale sprouts
The size of the earthball and the excavations are key to the success of the large-size water foliage transplant. According to the relevant information and experience, the size of the excavated earthball within 30 cm is 8-10 times the size of the sapular diameter, the size of the excavated earthball is 5-6 times the size of the sapular diameter of the trees above 30 cm and the height of the earthball is 2/3 times the diameter of the scaffold, and the size of the sprawl is 78-86 cm and the diameter of the excavated earthball is 4. 6-5. 4 m. When digging, the thicker side root must use a hand saw or sharp scissors to smooth the cutters, and the root agents, microbicides and wound healing agents must be painted with brushes on the mouth to promote plant wound healing and new root growth. The earthball shall be dug into a gyroform, with 1/30 earthball diameter at its base, and the earthball shall be bound by a palm rope, which shall cross the line at a distance of 20 cm, in order to avoid a loose earthball during transport。
2. 2 lifting and transport of large-scale sprouts
The main tree transplantation was carried out by a crane and a chowball method, which combined with the chow ball method to lift the large-size sprout. Prior to the suspension, the protection of the trunk hanger was done, with a 1 m wide rubber inner tyre entangled under the brown rope. When hanging, the earthballs are protected from discomfort and the bark is protected from damage. When a large tree loads a car, the tree rises above the car, but the excess should not exceed one third of the tree height, with a cross-stretching of pillows at the back of the car, to the point where the tree leaves the ground at 100 cm or more, and the tree canopy is too large to be tied up with ropes. As far as possible, the transportation of trees is carried out on a regular basis, without delay or drying, and it is best to cover them with a tarp to reduce the evaporation of water。
3 pre-plant large-size sprouts trimmed
We can recut before planting, and we can reduce the distribution of moisture to ensure that the tree balance improves its survival. The trimming uses the method of extracting the wheel branches, retrenching the side branches, which are suitable for 120 to 200 cm length, while cutting out the overlapping branches, the dead branches, the sick branches, the cross branches, the insect branches and the branches with severe damage during transport. It should also be noted that cuttings should be smooth and as small as possible and that, in order to prevent infection, pests and diseases, cuttings or saws greater than 2 cm in diameter must be treated in a timely manner. The location and parts of the branches must be scientifically sound and ensure the integrity and beauty of the whole tree。
4 large-size sprout planting
4. 1 peak preparation
(1) the location of the cave is to be accurate, the central location and the planting edges are to be indicated。
(2) the size of the den shall be determined by tree size, earthball size, shape and soil. The size of the general cave is about one-half the size of the root diameter, which should be about one-third thicker than the earthball. The top diameter and lower diameter of the cave are essentially the same and cannot be dug into the bottom of the pan, otherwise the roots of the tree will not stretch or the earth will not be placed at the bottom of the cave, thus creating a gap between the earth ball and the ground floor, which is not conducive to the wetting of the earthball。
(3) vasteration of the cave soil with soil disinfectants is required prior to transplantation。
(4) for poorly drained caves, 10 to 20 cm thick gravel is laid at the bottom of the planting den to fill such matrices as pottery or pearl rock, and seepage pipes or ditches are laid back to fill 30 cm thick of planted soil with fertilizer。
4. 2 cultivation
Placing a puck in a ready planting den, removing the ropes tied to the trunks of the trees, raising the trunks, aligning the position with the surrounding environment, securing the tree body, temporarily stabilizing the crane, preventing the dumping of large trees, removing earthball bandages and part of the brown rope, and spraying the roots of the puck twice。
Large-scale sprout plantings are carried out back to the ground, with the first earthball being filled with a third to a half of the cultivated land, and then with a restock, until it is filled。
4. 3 supported, fixed
Large-scale sprout cultivation should be supported immediately. The support points are set at 1/2-2/3 tree heights and are protected against damage to the bark. This transplant has been reinforced by a triangulation of wire ropes。
4. 4 surrounding and watering
Rounds, rounds, 20-30 cm tall, coiled with earth, no leaks. After planting, three perforations were made in a timely manner, and the first three were crucial to the success of the tree transplant, as earthballs were relatively dense and hard, often followed by permeability, while earthballs were less permeable, with steel poaching on the plumes, guiding water flow into the interior of the earth, and improving water efficiency。
5 technical measures for conservation management at a later stage
Large tree planting, which is a “triple, seven-strength nutrients”, is particularly important in day-to-day conservation management for a period of 1-3 years after transplantation. The first year of management after transplantation is even more important. Conservation efforts include, inter alia, drying, spraying, hanging nutrients, drainage, wet protection, pest control and protection。
5. 1 packing
Packing of trunks with materials such as grass ropes or unwielded cloths to keep them wet and warm. In the autumn and winter seasons, the trunks are surrounded by a plastic sheet of film for better temperature protection and are replaced in time before the tree sprouts. In addition, the city of tian shui city is in the northern region, with low temperatures during the autumn and winter seasons, and before the temperature drops to 0°c, we go around transplanting a membrane of the dry base of the sprout to increase the temperature, promote the healing of the roots, seedlings, remove them by the end of march of the following year, and water the caves。
5. 2 hanging nutrients
In the early stages of the suspense transplant, the roots were low-absorption, and we used the “infusion” method to attach nutrients to branches to supplement moisture and nutrients. The lumber with a chest size of 80 cm usually hangs about 10 bags of nutrients at a time, two bags at 30 cm in the trunk, four bags at the first branch of 6 m and two bags each in the trunk. Trees are smouldering around four holes. When the right position is selected, the drill is drilled, the drill is tilted down 45 degrees and the depth is maintained at 3-5 cm, and the wood is drilled out. (c) tie up the fluid bag of the pin and place the needle in order to avoid the loss of the fluid. After a period of time, the fluids are replaced in a timely manner, usually three to five times。
5. 3 water control
In order to improve ground drainage and prevent the erosion of the roots of the water, spraying is required on the transplanted large-scale sprouts. In the summer high-temperature weather, we used tree-top spray to recharge the top of the leaves with water. At 27 to 31 m, this transplant, we set up a rigid plastic pipe up to the top of the trunk, with 360° nozzles on top, and water is sprayed at half an hour early and late. In addition, the newly transplanted sprouts are afraid of flooding and need only keep the soil properly wet。
The greening landscape, which is the main garden in the country, has been very effective, but because of its precious nature and the difficulty of shifting it, the rate of survival is low, as is the case with the technology for the construction and management of the post-care management of large-scale graft transplants。
