CN103461067A - Method for transplanting big trees in summer - Google Patents

Abstract

The invention discloses a method for transplanting big trees in summer. On the basis that operations are performed in strict accordance with Urban Landscaping Construction and Acceptance norms, the method also comprises the following technical measures of (1) retaining freshness of tree bodies before transplantation; (2) earthing and covering ground around tree trunks after the transplantation; (3) spraying tree crowns in the day and evening. According to the method disclosed by the invention, a sunshade net does not need to be built and a spray facility does not need to be installed for each big tree, and therefore, the production cost can be greatly reduced. Meanwhile, the survival rate of the big trees can reach 95-100 percent, a very significant greening effect is achieved, and waste of big tree resources is avoided.

Description

How to transplant big trees in summer

technical field

The invention belongs to the technical field of garden plant cultivation, and in particular relates to a summer transplanting technique for big trees with high survival rate.

Background technique

With the development of urban construction in our country, higher requirements are put forward for the landscape of urban greening. Big trees refer to trees or shrubs with a DBH of more than 10 cm and a height of more than 4 meters (Meng Zhaozhen, Mao Peilin, Huang Qingxi, etc. Garden Engineering [M]. Beijing: China Forestry Press, 1996). Transplanting large trees can have an immediate greening effect and improve the overall quality and construction standards of landscaping. Based on this, big trees are also increasingly used in various gardens and green spaces, especially in key projects, which often require the effect of greening and beautifying in a short period of time. Therefore, the transplanting technology of large trees in summer (the average temperature is stable above 22°C for 5 consecutive days) is becoming more and more important. However, the growth momentum of large trees is significantly weaker than that of young young trees, and the survival rate of transplanting is low, and the time suitable for transplanting large trees is concentrated in winter and spring, which limits the period and construction progress of seedling transplanting. How to extend the suitable period for transplanting large trees is an urgent problem to be solved in the construction of modern urban gardens, which plays an important role in speeding up the construction progress and improving construction efficiency. At present, in addition to general irrigation and other maintenance and management measures for the transplanting of large trees in summer, sunshade nets must be built, and spraying facilities need to be installed for precious large trees. These measures have increased the production cost of transplanting large trees in summer, and the survival rate of transplanting is not high. the

Contents of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a large tree transplanting method that is easy to operate, saves manpower and water resources. Production costs can be reduced, and the survival rate of trees can be improved to meet the needs of greening construction.

The purpose of the present invention is achieved like this:

The method of transplanting large trees in summer, on the basis of strictly following the "Code for Construction and Acceptance of Urban Landscaping Projects", also includes the following technical measures:

(1) Keep the tree fresh before planting: After the big tree seedlings arrive at the site, first spray the tree with sufficient water, and then spray the anti-transpiration diluted to 100 times; Thin out dense branches, diseased and insect branches, disturbed tree-shaped branches and young branches that have not been lignified, and cut long branches short; when the pruning wound is greater than or equal to 2 cm, apply 369 brand plant wound healing ointment, and then cover it with sunshade net waiting to be planted;

(2) Cover the tree tray with film and soil after planting: Dig holes according to the size of the seedlings, raise the tree body by 10-15cm when planting the tree, and then backfill the soil to half, surround the soil ball with 150 times diluted rooting Continue to backfill the soil and cultivate it into a disc slightly larger than the tree hole. After 7 hours, pour enough root-fixing water, and then pour root-fixing water 2-3 times within 8 days according to the dryness and wetness of the soil ball. Cover the commercially available plastic film on the tree tray, and pierce several small holes so that the root system can breathe, and then cover the plastic film with a 10 cm thick soil layer. The purpose is to prevent the tree root system from being burned by the high temperature in summer. the

(3) Morning and evening canopy spraying: When the rhizosphere water is well watered in the summer of the tree planting year, it is necessary to spray water on the crown of the tree with a sprinkler before 9:00 am and after 4:00 pm until the tree body drips. Its purpose is to relieve the pressure of root water replenishment and meet the water demand of leaves. In autumn and winter, water the roots according to the drought of the tree soil.

Compared with the existing methods for transplanting large trees in summer, the present invention has the following advantages: First, the transplanted large tree trays have a water-retaining effect because they are covered with a plastic film, so there is no need for frequent rhizosphere watering, which saves water resources , manpower cost and energy consumption; second, due to the reduction of watering, it has a protective effect on the soil of the tree tray, which can keep the soil loose and not lost; third, when there is heavy rain in summer, it will not cause too much rainwater to flow into the tree. The waterlogging of the root system is caused in the hole, which affects the growth of the root system, and even causes the waterlogging of the root system to rot and the death of the tree; the fourth is that after planting, there is no need to build a sunshade net and install spraying facilities for each big tree, which can greatly reduce production costs; fifth, the present invention provides The method can make the survival rate of large trees reach 95% to 100%, obtain a very significant greening effect, and avoid the waste of large tree resources.

Detailed ways

Example 1 Effects of different methods on the survival of adult camphor trees transplanted in summer

A test group and a control group were set up, with 60 plants in each group, and they were transplanted in mid-June. The control group used conventional transplanting methods, and the test group adopted this method (Table 1).

After the seedlings of the test group arrived at the site, the trees were sprayed with enough water once, and then sprayed with 100 times of Guoguang brand anti-transpiration agent. While keeping the tree shape undamaged, properly thinned out dense branches, diseased and insect branches, and disturbed branches. Tree-shaped branches, young branches that have not yet lignified, short and long branches. When the pruning wound is greater than or equal to 2 cm, apply (369 brand) plant wound healing ointment. Then cover the sunshade net and wait for planting (remove the sunshade net after planting). Dig the hole according to the size of the tree, raise the tree body by 10-15 cm when planting the tree, and then backfill the soil. When backfilling to half, pour 150 times of rooting agent (brand 369) around the soil ball, continue to backfill the soil, and cultivate it into a disc slightly larger than the tree hole. After 7 hours, pour enough water to fix the roots. Water the root water 2-3 times as appropriate under dry and wet conditions. Cover the tree tray with a plastic film, and pierce several small holes so that the roots can breathe, and then cover the plastic film with a 10 cm thick soil layer. Trees were planted in the summer of the year when the rhizosphere water was poured, and then every morning (before 9 o'clock) and evening (after 4 o'clock) sprayed water to the crown of the tree with a sprinkler until dripping. In autumn and winter, water the roots according to the drought of the tree soil.

After the seedlings of the control group arrived at the site, the seedlings were properly trimmed without destroying the tree shape, and then planted according to the specifications, watered for fixed roots, fixed supports were set, and sunshade nets were built. In the future maintenance, do a good job in the rhizosphere water management of the trees, and water the roots according to the drought of the tree soil in autumn and winter.

Test results: 60 adult camphor trees were transplanted in the test group, and all of them survived, with a survival rate of 100%. In the control group, 60 adult camphor trees were transplanted, and 43 survived, with a survival rate of 71.7%.

Table 1 Effects of different methods on the survival of adult camphor trees transplanted in summer

group time Big tree specification Number of transplants number of survivors Survival rate (%) test group mid-June 2010 DBH 40 cm 60 plants 60 plants 100 control group mid-June 2010 DBH 40 cm 60 plants 43 plants 71.7

Example 2 Effects of different methods on the survival of adult sweet-scented osmanthus transplanted in summer

A test group and a control group were set up, with 30 plants in each group, and they were transplanted in mid-June. The control group used conventional transplanting methods, and the test group adopted this method (Table 2).

After the osmanthus seedlings of the test group arrived at the site, the trees were sprayed with enough water once, and then sprayed with 100 times of Guoguang brand anti-transpiration agent. While keeping the tree shape undamaged, properly thinned out dense branches, diseased and insect branches, Disturb the tree-shaped branches, the young branches that have not yet been lignified, and cut the long branches short. When the pruning wound is greater than or equal to 2 cm, apply (369 brand) plant wound healing ointment. Then cover the shade net and wait for planting (remove the shade net after planting). Dig the hole according to the size of the tree, raise the tree body by 10-15 cm when planting the tree, and then backfill the soil. When backfilling to half, pour 150 times of rooting agent (369 brand) around the soil ball, continue to backfill the soil, and cultivate it into a disc slightly larger than the tree hole, and pour enough rooting water after 7 hours. Within 8 days, water the root water 2-3 times as appropriate according to the dryness and wetness of the soil ball. Set up a fixed support, then cover the plastic film on the tree tray, and pierce several small holes so that the roots can breathe, and then cover the plastic film with a 10 cm thick soil layer. When the trees are planted in summer, when the rhizosphere water is poured, it is necessary to spray water to the crown of the tree with a sprinkler early (before 9 o'clock) and late (after 4 o'clock), and to water the roots according to the aridity of the tree soil in autumn and winter.

After the seedlings of the control group arrived at the site, the seedlings were properly trimmed without destroying the tree shape, and then planted according to the specifications, watered for fixed roots, fixed supports were set, and sunshade nets were built. In the future maintenance, do a good job in the rhizosphere water management of the trees, and water the roots according to the drought of the tree soil in autumn and winter.

Test results: In the test group, 30 adult osmanthus trees were transplanted, and 29 survived, with a survival rate of 96.6%. In the control group, 30 adult camphor trees were transplanted, and 20 survived, with a survival rate of 67.7%.

Table 2 Effects of different methods on the survival of adult osmanthus fragrans transplanted in summer

group time Big tree specification Number of transplants number of survivors Survival rate (%) test group mid-July 2010 Height 3.5 meters, crown width 3.5 meters 30 plants 29 plants 96.6 control group mid-July 2010 Height 3.5 meters, crown width 3.5 meters 30 plants 20 plants 67.7

Claims (4)

1. Summer transplanting big tree method, on the basis in strict accordance with " urban landscaping engineering construction and acceptance specification " operation, it is characterized in that comprising following technical measures: (1) plant before the tree body fresh-keeping; (2) plant rear tree disk cover film earthing, comprise the steps: to dig cave according to the size of nursery stock, to set body while planting trees and raise 10-15 ㎝, then reclaimed soil is to a half, fill with the root-growing agent that is diluted to 150 times round native ball surrounding, continue reclaimed soil, and train into the disk slightly larger than plant pit, water sufficient normal root water after 7 hours, in 8 days, according to the dry wet situation of native ball, take the circumstances into consideration to water normal root water 2-3 waterside; Then plastic film is covered on the tree dish, and prick several apertures so that root system respiration, the soil layer of covering 10 cm thicks on plastic film afterwards; (3) tree crown is sprayed water sooner or later.
2. Summer according to claim 1 transplanting big tree method, it is characterized in that: before described cultivation, the fresh-keeping step of tree body is: large sapling wood, behind scene, at first will set body and spray once sufficient water, then spray the inhibition transpiration agent that is diluted to 100 times; In the situation that keep tree-like not being destroyed, suitably remove overstocked branch, sick branch, tree-like of upset and not yet lignified spray, shortly cut long shoot; When the wound of pruning is more than or equal to 2 centimetres, smear preservative, then cover the sunshade net wait and plant.
3. Summer according to claim 2 transplanting big tree method, it is characterized in that: the preservative that before described cultivation, the fresh-keeping measure of tree body is used is 369 board plant wound heeling cream.
4. Summer according to claim 1 transplanting big tree method, it is characterized in that: described morning and evening step of tree crown water spray is: planting of plants then summer in the situation that watered rhizosphere water, need early 9 in the past and after 4 of evenings with sprinkling truck to the tree crown spray water, till being sprayed onto and setting body and drip.