Planting and Maintenance of Euonymus Japonica Hedgerow

Planting and maintenance of Populus tomentosa hedge

Scientific planting

When planting, we should first open the planting trough according to the requirements, and the width of the planting groove should be larger than the designed width of the hedge, which is convenient for planting operation. After the planting trough is opened, the base fertilizer should be applied in time, and the base fertilizer should be cooked and fermented cow and horse manure is the best. When selecting seedlings, we should pay attention to not introducing seedlings with diseases and insect pests. When planting, we should first plant the seedlings that depend on the outside, and then plant the seedlings in the middle. The row spacing should be basically the same. When planting more than 3 rows of hedges, the plants should be cross-shaped, and the adjacent 3 seedlings should be equilateral triangles, so as to facilitate the ventilation and light of the hedges and their neat growth. When planting, the soil should be pressed one by one, and the planting height should be basically unified. In the process of planting, some greening projects often encrypt the planting quantity of plants in order to achieve quick results, but they cause hidden dangers for future maintenance and management, which are not only easy to suffer from diseases and insect pests, but also prone to the phenomenon of bare legges. reduce ornamental value and accelerate plant senescence. After the hedge is planted, it should be pruned immediately, which can not only make the hedge uniform, but also effectively reduce the transpiration and improve the survival rate of the plant. After pruning, water should be watered in time, and the potholes should be filled in time to prevent the plant roots from being exposed.

Proper water and fertilizer

Water and fertilizer management is an important link in the maintenance of Populus tomentosa hedge. The root system of Euonymus tomentosa is relatively shallow, the whisker root is well developed, and the ability to resist drought and flood is not strong. In daily maintenance, it is necessary to determine whether or not to water or water according to the precipitation, so as to keep most of the soil moisture. Late autumn and early spring must be thoroughly watered with antifreeze and thawing water. The stagnant water should be removed in time after the heavy rain in summer to prevent the water from rotting the roots.

In the daily maintenance work, the author often finds that few people fertilize the hedge after applying the base fertilizer during planting. Relatively speaking, due to the high planting density of the hedge, sufficient fertilizer is needed. In addition to applying base fertilizer, nitrogen fertilizer should be applied once after pruning in late spring and early summer, and phosphorus and potassium compound fertilizer should be applied once after autumn.

Reasonable pruning

Generally speaking, the whole type of hedge needs fine pruning, so it can be said that the pruning of the hedge is the top priority of the maintenance work. The shapes of hedges are generally regular and irregular. Regular patterns are common in rectangles or pallets of the Great Wall, irregular and wavy, and so on. During pruning, it is necessary to trim the top and inner and outer sides, and the trapezoidal cross section after pruning is the most reasonable, which can effectively prevent the lower branches and leaves of the hedge from being bare.

In Lianyungang area, the plastic pruning of Populus tomentosa hedge generally has two periods: one is the end of spring and the beginning of summer, and the other is around the Mid-Autumn Festival. Pruning in these two periods is beneficial to plant growth. Such as early pruning in spring, new branches have not yet lignified, it is not easy for branches to germinate under the shearing mouth, but it is a season with frequent occurrence of diseases and insect pests in summer, such as large-scale pruning, which can easily lead to diseases and insect pests and affect their growth. Pruning in late spring and early summer is in the peak growing season, and the wound heals quickly, which can reduce the occurrence of diseases and insect pests. Early pruning in autumn, when it is summer, is prone to diseases and insect pests. If pruned too late, the newly sprouted branches can not be lignified before winter and are vulnerable to frost injury. Pruning wounds can heal in time before and after the Mid-Autumn Festival, and will not sprout too many branches, which can ensure that the plant can survive the winter safely.

Pest control

The hedgerow of Euonymus tomentosa is planted densely and is prone to diseases and insect pests, so pest control is very important. The prevention and control of diseases and insect pests should start before planting, first of all, we should pay attention to seedling quarantine, do not introduce seedlings with diseases and insect pests, and in particular, we should resolutely put an end to seedlings that are highly contagious and difficult to control, such as standing blight. In daily maintenance, in addition to strengthening seedling pruning to make plants ventilated and transparent, it is also necessary to strengthen water and fertilizer management, pay special attention to the application of phosphorus and potassium fertilizer, and enhance plant disease resistance. If there are powdery mildew, coal fouling, powdery mildew and other fungal diseases, it is necessary to spray broad-spectrum antimicrobials in time to control them. For highly contagious plants such as blight, it is necessary to pull out and burn them in time, and disinfect the planted soil by spraying.

Coal pollution disease

Powdery mildew

Fusarium wilt

The common pests of Populus tomentosa are Spodoptera litura, red spider, cotton aphid, Japanese tortoise wax scale, silk cotton golden star moth, Euonymus punctatus, brown-edge green thorn moth, double-spotted longicorn beetle, etc., if it occurs, it can be controlled according to the damage situation.

Rejuvenation method

The phenomenon of bare legs will appear in the big-leaf boxwood hedge after many years of growth. in order to overcome this phenomenon, it is necessary to re-cut and flatten the stubble. After re-pruning, the plant can remain 15 ~ 20cm high, which can stimulate the germination ability of the lower branches. For the hedges which have no bare legs but the branches are aging and the leaves are not growing vigorously, the method of thinning branches should be taken to increase the permeability of the hedge. For over-dense hedges, interseedling should also be carried out if necessary, that is, the redundant and overdense seedlings should be pulled out according to the growth of hedgerows, and the seedlings should be based on the principle of weak and strong, more dense, sparse or uneven. In addition, the re-cutting and flat stubble of the hedge must be carried out in the sunny weather of late spring and early summer, because summer is the prosperous period of plant growth, the cutting healing speed of the plant is faster, and the landscape effect can be restored in the shortest time.

Strengthening the management of water and fertilizer is an important measure to rejuvenate the aging Populus tomentosa hedge. After pruning, the big-leaf boxwood hedge is in the peak growing season, so it is necessary to provide adequate water and fertilizer. Fertilization should be based on the combination of organic fertilizer and inorganic fertilizer, root fertilization and leaf spraying. The period and types of fertilization should also be treated differently. According to the author's experience, nitrogen fertilizer should be used at the beginning of summer, phosphorus and potassium fertilizer at the beginning of autumn, and rotten circle fertilizer at the end of autumn.

Water the rejuvenated Populus tomentosa hedgerows and water them thoroughly during summer drought. For some hedgerows with shallow roots and drought tolerance, they should also be sprayed in particularly dry weather. Loosen the soil and preserve soil moisture in time after watering. In the rainy season, especially in continuous rainy days, drainage is also very important. If it is not drained in time, it is bound to cause plants to suffer waterlogging and die.

The prevention and control of diseases and insect pests is also an important part of the rejuvenation of hedges. The big-leaf boxwood hedge should be sprayed with fungicide immediately after stubble to prevent the wound from being infected by germs. In the subsequent growth period should be in line with the "cure early, cure" principle to control diseases and insect pests. Fungicides should use broad-spectrum antimicrobial agents such as chlorothalonil and carbendazim as far as possible, while insecticidal agents should be appropriate to the case. if the pest is more serious, the combination of spraying and root application should be taken to kill pests, and pesticides should be used alternately to avoid drug resistance of diseases and insects.