The economic trees suitable for planting in the south
Banana, begonia, hibiscus and bamboo are called the four garden products, which are good choices.
generally speaking, there should not be too many kinds of plants in the courtyard, and one or two plants should be used as the main scenery, and then one or two plants should be selected as a match. The choice of plants should match the overall courtyard style, and the level of plants should be clear, concise and beautiful. Plants, such as red rose pomegranate, black rose pomegranate, auspicious fruit, coral cherry and so on, which integrate flower viewing, fruit appreciation and eating, can make people enjoy a variety of different tastes comprehensively. In addition to the traditional turf suitable for spreading in the courtyard and the big sun-loving plants, aromatic plants such as rosemary, cordate telosma, lavender and mint have recently become the new favorites of garden planting.
Because these fragrant plants have strong fragrance from seedlings to dry leaves, they are especially fragrant at night, which is especially suitable for creating a drunken atmosphere in the courtyard. Its fragrance also has antioxidant and antibacterial properties, and it is a green product with fresh smell and air purification.
Precautions for planting trees in the south
Conventional tree transplantation can only be carried out after pruning and root cutting continuously within 1 to 3 years. Because some big trees need to be removed in the construction project, and some over-planted fruit trees need to be opened, in order not to waste tree resources, the author made a big tree transplant plan after careful research, analysis and field investigation.
The varieties of these big trees are: Peach, Mango and Acacia formosana. They are all southern tree species, which are produced in subtropical areas. According to the survey, these trees have been planted for more than 1 years since the seedlings were planted, and they have never been transplanted. Most trees are between 15 cm and 25 cm in diameter. The first batch of 3 big trees need to be transplanted, which will be completed in three days. The daily work includes digging soil balls, pruning branches and leaves, binding soil balls, lifting, transporting and planting, all of which will be completed on the same day. According to the requirements of the construction progress, the author transplanted nearly 1 trees from mid-May to early December, and the survival rate reached 95%, and the crown width remained intact, which was as large as that of the trees growing in situ during the year. The author will introduce gymnastics as follows:
Pay attention to the weather before transplanting. Before transplanting trees, we should make transplanting plans according to the weather forecast, and avoid high temperature, low temperature and northerly winds. Peach trees are easy to grow in wet areas, such as fish ponds and slopes along the river; Mango and acacia formosana should be planted in yellow soil structure. Because the digging ball is easy to loosen after rain, you should choose sunny days or wait until the soil is dry when digging trees. When digging the earth ball that day, it is necessary to avoid the water evaporation caused by the direct sunlight after digging the earth ball. If possible, it can be covered with sunshade net, and it is best to dig and plant it.
pruning can be divided into: (1) before digging, clear the inner hall branches, cut the drooping branches according to the specified height, and cut off the dead branches with diseases and pests. (2) When transporting to the planting site, trim the top branches in the car. If the top branches are tender branches, they should all be cut off, with a length of about 3 cm, and the branches that are too dense should also be cut off. (3) Half of the old leaves are knocked out to facilitate metabolism. Keep the young part in the middle, the young leaves should not be too dense, and when they are too dense, use the interval method to beat the leaves. (4) Prune the branches and leaves damaged by machinery after planting. The purpose is to reduce the water demand of the whole tree after transplantation and ensure the survival rate of the tree. Pruning branches is one third of the whole, so that the whole tree shape is not damaged and conditions are created for sprouting new branches and leaves. The blade of root pruning should be small and flat, which is beneficial to the growth of new roots.
excavation method according to the trunk diameter, growth and topography of each tree, the author determines the diameter of the soil ball for tree excavation, which is generally 8 to 1 times of the trunk diameter. When digging, it should be flat and larger, and then trim the soil ball with a shovel. The depth is generally about 1 meter, and the bottom of the soil ball is reduced to a pot shape, and it will be bandaged immediately after completion. 5%-7% sunshade net and plastic string are used as dressing materials. Leave more at the bottom of the sunshade net when wrapping the soil ball, and tie it tightly with plastic rope after wrapping it. The next important work is to cut off the underlying main roots. Because these saplings have never been transplanted and their taproots are deep, the author used an excavator. Expand one side of the tree pit, and the excavator will retreat to a certain range. Insert the back of the bucket directly into the bottom of the soil ball and push it forward evenly, and stop pushing again when the tree is inclined. Use a shovel and saw to treat the root system at the bottom, and then wrap it with a sunshade net. In the process of dressing, the net and rope must be tightened to avoid the soil ball from scattering.
The bark of Peach, Mango and Acacia formosana is brittle. In particular, the bark of Syzygium persicum contains a lot of water, and it is easy to hurt the skin when it is lifted by professional canvas belt. So when lifting trees, we should wrap sacks on the trunk. When hanging peach trees, it is necessary to evenly add wooden strips around the sacks, and then buckle the canvas hanging belt to avoid pulling the bark. It is best to choose the trunk hanging point at the bifurcation and tree node, but we must pay attention to the balance between the tree and the soil ball. When hanging the tree on the car, because of the large crown and many branches, the car should prepare a long piece of wood or sandbag. When putting the tree on the car, the soil ball leans against the front of the car, with the crown facing backward. Cross-frame the battens or pile sandbags on the car, and put the tree on the battens or sandbags, and pad the battens with sacks to avoid hurting the bark. Bricks or sandbags are used to close the two sides of the soil ball, so that the soil ball will not shake on both sides.
When preparing tree holes and selecting planting points, it is not allowed to be in stagnant water or low terrain. When digging a hole, the size of the hole is determined according to the size of the soil ball of each tree, which is generally 3 to 4 cm larger than the diameter of the soil ball and 4 to 6 cm deep. Put the base fertilizer at the bottom of the hole and return it to the guest soil for about 2 cm. The depth of backfill soil in tree holes is higher than that of soil balls, because the loose soil will drop after watering. The planting height of trees is about 2 cm higher than the original ground, which is beneficial to drainage.
when planting hanging trees, look at the direction of the crown and choose the direction. Untie the bottom net and rope before the tree goes down to the hole. If the soil ball is loose and can't solve the bottom layer, put it into the tree hole and shovel it into the foreign soil, and stick it around. When nearly one third of the soil is backfilled, loosen the tree belt to see whether the tree is upright and smooth. For example, use a crane to hook the tree belt on the inclined side and tighten it with a stick at the bottom of the shovel until the tree is upright. Untie the sunshade net and rope, take them out and fill them with mud. When filling mud, put 4-5 bamboo or water pipes between the hole and the soil ball, the length of which should be equal to or shorter than that of the soil ball. The bamboo needs to drill multiple holes and get all the bamboo joints through, and the water pipes only need to be drilled. This can make water pour to the bottom layer and around the trees, and increase the permeability of the soil. One end of bamboo or water pipe should be higher than the ground to avoid mud falling into the pipe.
maintenance and management if the sun is strong after planting, cover the sunshade net as soon as possible and water it properly. According to the weather conditions, spray water every day for 4 to 5 times in sunny days, once in the morning and once in the evening, and * * * three times at noon and afternoon. Because the temperature is the highest around noon and the water evaporates quickly, it is necessary to ensure the water supply of branches and leaves. After planting, the trees should be reinforced in time and not allowed to shake, so as not to affect the survival rate. The fixing material can be iron wire or long bamboo, and it can be stabilized. The branches should be wrapped with sacks or rubber before fixing.
planting methods of hibiscus
1. Geographical distribution of hibiscus
Hibiscus has wild species in North China, East China, South China and Southwest China; In recent years, they have been invited to gardens and courtyards in large numbers.
2. Environment for the growth of hibiscus trees
Hibiscus trees like sunlight and grow fastest on moist and fertile land. If they are planted in waterfalls, streams and Chi Pan, they can grow into trees quickly.
3. propagation method of hibiscus
hibiscus is mainly propagated by sowing, and the seeds are collected in October and November, and then stored in dry bags after impurity removal until sowing in March and April of the following year. Seeds can be soaked in warm water 1 days before sowing to accelerate germination, and seedlings can emerge in 5-7 days.
4. Cultivation and management of hibiscus
Hibiscus is often inclined at seedling stage, and its branch points are low. In order to make the trunk straight and improve the branch position, the seedlings should be properly densely planted and the side branches should be pruned in time. If the annual seedlings grow too weakly, they can be cut off to promote the trunk to grow sturdily. It is more suitable to plant Albizia Albizia in spring, and the survival rate is the highest when the buds just sprout. Its management is relatively extensive. If basal fertilizer is applied around the root disk once a year in winter, it will grow better the next year.