Transplanting technology of large cedar and key points of maintenance before and after transplantation

With the continuous development of garden technology, in recent years, there are numerous examples of successful tree transplantation. The author transplanted ten big cedar trees in Jinan last year, all of them survived and grew well under careful maintenance. The experience of transplantation and maintenance is introduced as follows.

I. time and geographical location

The hydrological condition is mid-October, and the planting site is located on the side of the main road west of Jinan, Shandong Province. it is a street green space with an area of about 4000 square meters, and its soil is clayey soil. In order to increase the greening effect, the micro-topography is molded in the construction process, the cedar is planted in the higher terrain, and the drainage condition is good.

II. Preparatory work before construction

1. Because the cedar to be transplanted is 7.0 to 8.5 meters high, the tree holes are dug into 2.5 × 2.5 × 2.0 meters, remove the internal large rocks and bad soil, and prepare enough backfill soil.

two。 Prepare a number of 9-meter-long bamboo poles, 1 kilogram of iron wire and the necessary tools, 3 high-pressure sprayers, 40 sprinklers (with rods), several meters of water pipes, and one sprinkler.

3. Do the leveling of the site in advance and plan the route of cranes and transport vehicles.

III. Excavation and transportation

To do a good job in seedling selection before digging, it is required that the selected seedlings have beautiful tree shape, straight trunk and no mechanical damage. Try not to choose cedar with large crown and dense branches in order to increase the survival rate and reduce the cost of transportation and planting. Make a good record in advance to facilitate the seedlings to enter the pit after arrival. Before digging, prop up the seedlings with supports to prevent the trees from tilting, so as to ensure safety. In addition, the yin and yang sides of seedlings should be marked to facilitate location when planting. The soil ball dug by the author is 1.8 meters in diameter and 1.6 meters in height. After excavation, it is found that there are no large roots (root diameter more than 2 cm) on the outer edge of the soil ball. Using soft packaging, first wrap the soil ball with a straw curtain, then twist it with grass rope, and wrap the outer layer with brown rope again. Practice has proved that under the condition of good soil quality, none of the soil balls are broken. 16T crane is used for hoisting, the earth ball is pulled by wire rope, the wire ropes are connected by U-shaped buckle, and the thick wood is padded at the contact between the wire rope and the earth ball to prevent it from being strangled into the earth ball. The main hook is used to hang the wire rope, and the auxiliary hook is used to hang on the 2PUB3 of the trunk. The trunk of the hook is wrapped with sacks layer by layer to prevent the rope from strangling into the bark. A long rope should also be tied at 1 stroke 2 of the trunk in order to maintain the direction of movement by manpower during lifting. After the seedlings get on the bus, keep the soil ball facing forward and the crown facing back, and use a tripod to support the trunk to prevent the crown from mopping the floor. For short-range transportation, water is sprayed on tree trunks and canopies, while long-distance transportation must be covered with tarpaulins and sprayed regularly to reduce water evaporation from trees.

IV. Planting

Apply 20 kg of organic fertilizer in each tree hole and mix well with backfill to the reserved height of the soil ball. The hoisting method of planting is basically the same as that of hoisting. The seedlings are hoisted into the tree hole before landing, the soil ball is rotated manually to make its position and orientation reasonable, then the soil is backfilled, and all inclusions should be removed before backfilling. Finally, layer by layer tamp and do a good job of water hole.

V. maintenance

1. The seedlings should be supported immediately after planting, and then watered after the support is finished. The first watering should be thoroughly watered, and watered the second time after three days and the third time after ten days. In order to ensure the survival rate, we used 100ppm's ABT rooting powder No. 3 as root irrigation treatment on the fourth day of planting. After three times of watering, the hole can be closed, the tree hole can be covered with plastic film and a certain drainage slope can be made to prevent the root from stagnant water caused by spray during later maintenance. Plastic film can be covered for a long time to prevent cold and water evaporation.

two。 In order to increase the survival rate, the author made a branch thinning treatment with the shaping of the seedlings after the completion of the bracket. First remove diseased branches, overlapping branches, inner branches and individual large branches that affect the shape of the tree, and then prune the twigs. In the process of construction, you should look at it frequently and trim it many times, and do not trim and shape at one time, so as to avoid wrong pruning. After pruning, apply paraffin or antirust paint to the wound in time to prevent it from rotting with water.

3. Immediately after planting, the seedlings should be sprayed with a spray irrigation machine to ensure the moisture and air humidity required by the crown. In order to reduce the labor intensity and increase the maintenance effect, the author designed a set of water spray maintenance system: 3 to 4 sprinklers were installed on each cedar in advance, and the position of the sprinkler was based on the principle that water mist could cover the whole tree. Regular spray every day, practice has proved to be very good.

4. After the completion of the hoisting, the author found that two cedar trees were accidentally strangled by the rope during the hoisting process, and the circular skinning of the tree lasted for 2 weeks at 3 locations of the tree. So, while the mucous membrane in the bark was not dry, the author nailed the fallen bark in situ with a small nail 1 cm long in time, and evenly smeared yellow mud on the wound, wrapped it tightly with grass rope, and then tightly wrapped it with a thicker plastic film to keep it moist. After 4 months of examination, the bark has basically healed, and the two trees are growing well under normal maintenance.

5. As Jinan belongs to the inland area, the spring wind is strong and the precipitation is less, and the water evaporation of seedlings is large, so the frequency of watering and spraying should be increased appropriately. When the seedlings spend the spring safely, the maintenance work can enter the normal management.

Technical points of transplanting and maintenance of large cedar

Technical points of transplanting and maintenance of large cedar-with the continuous development of garden technology, in recent years, there are numerous examples of successful transplanting of big trees in various places. The author transplanted ten big cedar trees in Jinan last year, all of them survived and grew well under careful maintenance. The experience of transplantation and maintenance is introduced as follows.

I. time and geographical location

The hydrological condition is mid-October, and the planting site is located on the side of the main road west of Jinan, Shandong Province. it is a street green space with an area of about 4000 square meters, and its soil is clayey soil. In order to increase the greening effect, the micro-topography is molded in the construction process, the cedar is planted in the higher terrain, and the drainage condition is good.

II. Preparatory work before construction

1. Because the cedar to be transplanted is 7.0 to 8.5 meters high, the tree holes are dug into 2.5 × 2.5 × 2.0 meters, remove the internal large rocks and bad soil, and prepare enough backfill.

2. Prepare a number of 9-meter-long bamboo poles, 1 kilogram of iron wire and the necessary tools, 3 high-pressure sprayers, 40 sprinklers (with rods), several meters of water pipes, and one sprinkler.

3. Do the leveling of the site in advance and plan the route of cranes and transport vehicles.

III. Excavation and transportation

To do a good job in seedling selection before digging, it is required that the selected seedlings have beautiful tree shape, straight trunk and no mechanical damage. Try not to choose cedar with large crown and dense branches in order to increase the survival rate and reduce the cost of transportation and planting. Make a good record in advance to facilitate the seedlings to enter the pit after arrival. Before digging, prop up the seedlings with supports to prevent the trees from tilting, so as to ensure safety. In addition, the yin and yang sides of seedlings should be marked to facilitate location when planting. The soil ball dug by the author is 1.8 meters in diameter and 1.6 meters in height. After excavation, it is found that there are no large roots (root diameter more than 2 cm) on the outer edge of the soil ball. Using soft packaging, first wrap the soil ball with a straw curtain, then twist it with grass rope, and wrap the outer layer with brown rope again. Practice has proved that under the condition of good soil quality, none of the soil balls are broken. 16T crane is used for hoisting, the earth ball is pulled by wire rope, the wire ropes are connected by U-shaped buckle, and the thick wood is padded at the contact between the wire rope and the earth ball to prevent it from being strangled into the earth ball. The main hook is used to hang the wire rope, and the auxiliary hook is used to hang on the 2PUB3 of the trunk. The trunk of the hook is wrapped with sacks layer by layer to prevent the rope from strangling into the bark. A long rope should also be tied at 1 stroke 2 of the trunk in order to maintain the direction of movement by manpower during lifting. After the seedlings get on the bus, keep the soil ball facing forward and the crown facing back, and use a tripod to support the trunk to prevent the crown from mopping the floor. For short-range transportation, water is sprayed on tree trunks and canopies, while long-distance transportation must be covered with tarpaulins and sprayed regularly to reduce water evaporation from trees.

IV. Planting

Apply 20 kg of organic fertilizer in each tree hole and mix well with backfill to the reserved height of the soil ball. The hoisting method of planting is basically the same as that of hoisting. The seedlings are hoisted into the tree hole before landing, the soil ball is rotated manually to make its position and orientation reasonable, then the soil is backfilled, and all inclusions should be removed before backfilling. Finally, layer by layer tamp and do a good job of water hole.

V. maintenance

1. The seedlings should be supported immediately after planting, and then watered after the support is finished. The first watering should be thoroughly watered, and watered the second time after three days and the third time after ten days. In order to ensure the survival rate, we used 100ppm's ABT rooting powder No. 3 as root irrigation treatment on the fourth day of planting. After three times of watering, the hole can be closed, the tree hole can be covered with plastic film and a certain drainage slope can be made to prevent the root from stagnant water caused by spray during later maintenance. Plastic film can be covered for a long time to prevent cold and water evaporation.

2. In order to increase the survival rate, the author made a branch thinning treatment with the shaping of the seedlings after the completion of the bracket. First remove diseased branches, overlapping branches, inner branches and individual large branches that affect the shape of the tree, and then prune the twigs. In the process of construction, you should look at it frequently and trim it many times, and do not trim and shape at one time, so as to avoid wrong pruning. After pruning, apply paraffin or antirust paint to the wound in time to prevent it from rotting with water.

3. Immediately after planting, the seedlings should be sprayed with a spray irrigation machine to ensure the moisture and air humidity required by the crown. In order to reduce the labor intensity and increase the maintenance effect, the author designed a set of water spray maintenance system: 3 to 4 sprinklers were installed on each cedar in advance, and the position of the sprinkler was based on the principle that water mist could cover the whole tree. Regular spray every day, practice has proved to be very good.

4. After the completion of the hoisting, the author found that two cedar trees were accidentally strangled by the rope during the hoisting process, and the circular peeling at the three places of the tree reached 1 cycle for 2 weeks. So, while the mucous membrane in the bark was not dry, the author nailed the fallen bark in situ with a small nail 1 cm long in time, and evenly smeared yellow mud on the wound, wrapped it tightly with grass rope, and then tightly wrapped it with a thicker plastic film to keep it moist. After 4 months of examination, the bark has basically healed, and the two trees are growing well under normal maintenance.

5. Because Jinan belongs to the inland area, the spring wind is strong and the precipitation is less, and the water evaporation of seedlings is large, so the frequency of watering and spraying should be increased appropriately. When the seedlings spend the spring safely, the maintenance work can enter the normal management. Transplanting and maintenance of large cedar I. preparation work before construction

1. Because the cedar to be transplanted is 7.0 to 8.5 meters high, the tree holes are dug into 2.5 × 2.5 × 2.0 meters, remove the internal large rocks and bad soil, and prepare enough backfill.

2. Prepare a number of 9-meter-long bamboo poles, 1 kilogram of iron wire and the necessary tools, 3 high-pressure sprayers, 40 sprinklers (with rods), several meters of water pipes, and one sprinkler.

3. Do the leveling of the site in advance and plan the route of cranes and transport vehicles.

2. Excavation and transportation

To do a good job in seedling selection before digging, it is required that the selected seedlings have beautiful tree shape, straight trunk and no mechanical damage. Try not to choose cedar with large crown and dense branches in order to increase the survival rate and reduce the cost of transportation and planting. Make a good record in advance to facilitate the seedlings to enter the pit after arrival. Before digging, prop up the seedlings with supports to prevent the trees from tilting, so as to ensure safety. In addition, the yin and yang sides of seedlings should be marked to facilitate location when planting. The soil ball dug by the author is 1.8 meters in diameter and 1.6 meters in height. After excavation, it is found that there are no large roots (root diameter more than 2 cm) on the outer edge of the soil ball. Using soft packaging, first wrap the soil ball with a straw curtain, then twist it with grass rope, and wrap the outer layer with brown rope again. Practice has proved that under the condition of good soil quality, none of the soil balls are broken. 16T crane is used for hoisting, the earth ball is pulled by wire rope, the wire ropes are connected by U-shaped buckle, and the thick wood is padded at the contact between the wire rope and the earth ball to prevent it from being strangled into the earth ball. The main hook is used to hang the wire rope, and the auxiliary hook is used to hang on the 2PUB3 of the trunk. The trunk of the hook is wrapped with sacks layer by layer to prevent the rope from strangling into the bark. A long rope should also be tied at 1 stroke 2 of the trunk in order to maintain the direction of movement by manpower during lifting. After the seedlings get on the bus, keep the soil ball facing forward and the crown facing back, and use a tripod to support the trunk to prevent the crown from mopping the floor. For short-range transportation, water is sprayed on tree trunks and canopies, while long-distance transportation must be covered with tarpaulins and sprayed regularly to reduce water evaporation from trees.

3. Planting

Apply 20 kg of organic fertilizer in each tree hole and mix well with backfill to the reserved height of the soil ball. The hoisting method of planting is basically the same as that of hoisting. The seedlings are hoisted into the tree hole before landing, the soil ball is rotated manually to make its position and orientation reasonable, then the soil is backfilled, and all inclusions should be removed before backfilling. Finally, layer by layer tamp and do a good job of water hole.

IV. Maintenance

1. The seedlings should be supported immediately after planting, and then watered after the support is finished. The first watering should be thoroughly watered, and watered the second time after three days and the third time after ten days. In order to ensure the survival rate, we used 100ppm ABT rooting powder No. 3 as root irrigation treatment on the fourth day of planting. After three times of watering, the hole can be closed, the tree hole can be covered with plastic film and a certain drainage slope can be made to prevent the root from stagnant water caused by spray during later maintenance. Plastic film can be covered for a long time to prevent cold and water evaporation.

2. In order to increase the survival rate, the author made a branch thinning treatment with the shaping of the seedlings after the completion of the bracket. First remove diseased branches, overlapping branches, inner branches and individual large branches that affect the shape of the tree, and then prune the twigs. In the process of construction, you should look at it frequently and trim it many times, and do not trim and shape at one time, so as to avoid wrong pruning. After pruning, apply paraffin or antirust paint to the wound in time to prevent it from rotting with water.

3. Immediately after planting, the seedlings should be sprayed with a spray irrigation machine to ensure the moisture and air humidity required by the crown. In order to reduce the labor intensity and increase the maintenance effect, the author designed a set of water spray maintenance system: 3 to 4 sprinklers were installed on each cedar in advance, and the position of the sprinkler was based on the principle that water mist could cover the whole tree. Regular spray every day, practice has proved to be very good.

4. After the completion of the hoisting, the author found that two cedar trees were accidentally strangled by the rope during the hoisting process, and the circular peeling at the three places of the tree reached 1 cycle for 2 weeks. So, while the mucous membrane in the bark was not dry, the author nailed the fallen bark in situ with a small nail 1 cm long in time, and evenly smeared yellow mud on the wound, wrapped it tightly with grass rope, and then tightly wrapped it with a thicker plastic film to keep it moist. After 4 months of examination, the bark has basically healed, and the two trees are growing well under normal maintenance.

5. Because Jinan belongs to the inland area, the spring wind is strong and the precipitation is less, and the water evaporation of seedlings is large, so the frequency of watering and spraying should be increased appropriately. When the seedlings spend the spring safely, the maintenance work can enter the normal management.