Planting method of Magnolia

1. The choice of planting environment

Magnolia likes light, young trees are more resistant to shade, not resistant to strong light and western sun, too strong light or western sun, it is easy to burn trees. Magnolia can be planted in the lateral light-blocking environment, but grow poorly under the big tree or in the shade, with small and yellow leaves, no flowers or small flowers; Magnolia is hardy and can withstand a short low temperature of-20 ℃, but it is not suitable to be planted in the tuyere, otherwise it is easy to strip, and measures such as entanglement can be safely carried out in the open field without entanglement in the leeward to the sun in Beijing area. Magnolia likes fertile, moist, well-drained slightly acidic soil, but can also grow normally in mild saline-alkali soil (pH 8.2, salt 0.2%). Magnolia is a fleshy root, afraid of stagnant water, the planting terrain should be high, and it is easy to rot roots and cause death in low-lying areas; Magnolia also has good soil permeability, but grows poorly in clay, and grows best in sandy loam and yellow sandy soil.

2. Excavation and planting of seedlings

Magnolia is not resistant to transplantation and is generally ideal for transplanting 10 to 15 days before sprouting or when the flowers have just withered but have not spread their leaves. The seedlings should be watered once 4 to 5 days before seedling emergence, which can not only make the plants absorb sufficient water, which is beneficial to the survival after planting, but also benefit the soil to form balls when digging seedlings. When digging, the root system should be hurt as little as possible, and the root wound must be smooth to facilitate wound healing. in addition, it should be noted that no matter how big the seedling is, the soil ball diameter should be 8 to 10 times of the seedling ground diameter, not too small, too small can not play the role of protecting the root system. After the earth ball is dug, it should be tied up with straw rope to prevent it from falling apart during transportation.

Dig the tree hole well before planting, the tree hole should be large, not small, the tree hole is too small, it is not only troublesome to plant, but also not conducive to root growth. The soil at the bottom of the tree pit had better be mature soil, and the soil should be treated or improved if the soil is too sticky or the pH value and salt content exceed the standard.

The permeability of cultivated soil must be good, soil fertility must be sufficient, enough nutrients should be provided to plants, and there should be no impurities such as bricks, tiles, lime and so on in the soil. Planting depth should be appropriate, generally speaking, the planting depth can be slightly higher than the original soil ball 2 to 3 cm, too deep is easy to sprout, too shallow will make the root bare, but also easy to be blown down by the wind.

Large size seedlings should be set up in time, and the bracket can be used with triangular support to prevent it from being tilted by the wind; after planting, it should be watered immediately, watered two days later, watered three days later, and can enter normal management after three days. If the seedlings have buds, the buds should be cut off to prevent flowering and fruiting from consuming a lot of nutrients and affecting the survival rate.

3. Water and fertilizer management

Magnolia is neither resistant to waterlogging nor drought, so the principle of "like wet and afraid of waterlogging" should be strictly followed in cultivation and maintenance. In the process of cultivation and conservation, many people think that Magnolia should be watered as little as possible, which is very wrong, because Magnolia is afraid of waterlogging does not mean it likes drought, and it likes wet environment. In water management, it is necessary to master the degree that the soil is neither too dry nor too wet.

In the process of cultivation, the soil should be kept moist without stagnant water. In the process of conservation, the newly planted magnolia should keep the soil moist, which is also an important measure to ensure its survival rate. Watering Magnolia into normal management, turning green in early spring and anti-freezing water in early winter are indispensable, and should be fully watered thoroughly. In the growing season, water can be watered once a month, and watering should be stopped in the rainy season. Timely drainage should be done after the rain to prevent rotting roots caused by stagnant water. In addition, it should also be carried out in time to loosen the soil and preserve moisture. It should be noted that: in the rainy season dry period should also be timely irrigation, water shortage not only affect the vegetative growth of plants, but also lead to bud shedding or atrophy, affecting the flowering of the following year.

In addition, magnolia is planted in poor site conditions, especially in the environment where the hardened area is large and the green area is small, under the condition of continuous high temperature and drought, foliar spraying should also be given while watering the root, and water spraying should pay attention to the degree of atomization, the higher the degree of atomization, the better the effect is, the best spraying time is before 8:00 in the morning and after 6:00 in the evening, and cannot be carried out when the light is strong at noon. For Magnolia magnolia which suffered from waterlogging, it is necessary to save it at the first time, first, to eliminate stagnant water in time, second, to shade the trees, especially to prevent the western sun, and third, to cut off some leaves and buds.

Magnolia likes fertilizer, in addition to the application of base fertilizer when planting, it should be fertilized every year after that. Sufficient fertilizer can make the plant grow vigorously, the leaves are green and thick, not only have many buds, but also have large flowers, long flowering period and fragrant. Fertilizing Magnolia is carried out four times a year, that is, applying nitrogen, phosphorus and potassium compound fertilizer before flowering, which can not only improve flowering quality, but also benefit spring growth; apply nitrogen fertilizer once after flowering, which can increase plant growth and expand nutritional area; apply phosphorus and potassium compound fertilizer once in July and August, this time can promote flower bud differentiation and improve the Lignification of new branches. Before the beginning of winter, combined with watering winter water and applying a mature fermented ring fertilizer, this fertilizer can not only improve the activity of the soil, but also effectively increase the soil temperature, and the amount of fertilizer should be large rather than small. In addition, if the seedlings planted in that year do not grow well, they can be foliar sprayed with 0.2% potassium dihydrogen phosphate solution, which can effectively enhance the tree potential. Although the overwintering management magnolia can withstand the low temperature of-20 ℃, both the small magnolia and the magnolia planted in that year should strengthen the overwintering management. in addition to pouring enough frozen water after the leaves fall in the middle and last ten days of November, the tree pits should also be treated with grass, plastic film or soil, and the trees can be treated with white coating to prevent striping in spring. Magnolia, which has survived for many years, can only be treated with anti-freezing water and whitening.

4. Disease and pest control

Disease

(1) anthrax

Symptoms and regularity of the disease:

Anthracnose mainly harms the leaves of Magnolia. Irregular disease spots are often produced from the leaf tip or leaf edge, or nearly round spots are formed on the leaf surface. At the initial stage, the lesion is brown and watery, with small black particles on the surface and dark brown raised lines on the edge, with a clear boundary between the lesion and the healthy part. The pathogen of anthracnose overwintered with mycelium on the tree or fallen leaves, and produced conidia in the following spring, which were transmitted to the plant by wind and Rain Water. The spores germinated in the water droplets, invaded the leaf tissue and caused the disease. The peak of the disease is in the period of high temperature and humidity in summer. Plant water and fertilizer management is not in place, not ventilated, when the growth decline is very easy to occur this disease.

Prevention and control methods:

Strengthen water and fertilizer management, enhance tree potential, improve disease resistance; remove diseased leaves in time, remove fallen leaves and burn them at the end of autumn; if there is disease, spray with 75% chlorothalonil wettable granule 800 times or 70% anthrax Fumei 500 times liquid, once every 10 days, continuous spraying 3 to 4 times can effectively control the disease. Special agents: Bacillus spp., carbendazim, Amisi, etc., have special effects on diseases caused by fungi.

(2) chlorosis

Symptoms and regularity of the disease:

First of all, the leaflets faded, the chlorophyll gradually decreased, the leaves were yellow or light yellow, and the veins of the leaves were still green. after the disease spread, the whole leaves turned yellow, and then gradually whitened, plant growth gradually declined, and finally died.

Prevention and control methods:

Chlorosis is a physiological disease, which is mainly caused by excessive viscosity of soil, excessive pH value and insufficient supply of iron. 0.2% ferrous sulfate solution can be used to irrigate roots, or 0.1% ferrous sulfate solution can be used for leaf spraying, and more farm manure should be applied.

(3) Leaf burn

Symptoms and regularity of the disease:

At the initial stage, the scorched edge of the leaves of the plant, and then the leaves gradually wrinkled and withered, when the disease was serious, the new leaves could not be expanded, and a large number of leaves dried up and fell off. The disease often occurs under poor site conditions, such as large hardened area, small green area, long-term high temperature, drought, excessive light, soil alkalization or excessive flowers.

Prevention and control methods:

Increase watering times to keep the soil moist; apply more organic fertilizer to enhance the tree potential and improve the resistance of the plant; whitening or entangling the tree.

Insect pest

The main pests of Magnolia are: big coir moth, frost moth, red spider, longicorn beetle, etc., and occasionally underground pests such as grubs. If there is an insect pest, you can use 80% dichlorvos EC 800x or 50% fenitrothion EC 800x solution to kill Spodoptera litura; use Bt EC 800x solution or 50% fenitrothion EC 800x solution to kill frost moth; use 40% triclofenac 800x solution or 5% nisorone 2000 times solution to kill red spiders; use green Vellex 500x solution to kill longicorn beetles; use 50% zinc parathion emulsion 1000 times solution to kill grubs.

Planting methods and key points of cultivation and Management of Magnolia

Magnolia, Magnolia, Magnol

Growth habits of Magnolia Magnolia

Magnolia is native to Java, Indonesia, and is now widely planted in Southeast Asia. It is widely cultivated in Fujian, Guangdong, Guangxi, Yunnan and other provinces and regions of China, and is still wild in Lushan, Huangshan, Emei Mountain, Jushi Mountain and other places. It is suitable for growing in warm and humid climate and fertile and loose soil. It likes light, is not resistant to drought and waterlogging, dies after 2-3 days of flooding, and is sensitive to toxic gases such as sulfur dioxide and chlorine.

Propagation methods of Magnolia Magnolia

1. Seed propagation

① seed collection: usually in the first or middle of September, when the fruit turns red and part of the fruit cracks to reveal red seeds, it can be harvested. After threshing, full and bright seeds are selected for seed.

② seed treatment: soak the seeds in 50-60 ℃ warm water for 10 minutes, knead the seeds with fine sand, remove wax, sift out the seeds, store them with 3 times of wet sand in the leeward sunny pit, cover them with grass for heat preservation and moisturization, and sow them when about 50% of the seeds are cracked and exposed in the following spring, and autumn sowing can be carried out with picking. At this time, the fresh seeds should be soaked in warm water with plant ash for 3-5 days, rub to water frequently, and sow after the seeds break.

③ seed sowing: the seedbed should be made into a high bed with a width of 1.2m, a height of 30cm and a trail width of 30cm. A horizontal trench with a row spacing of 20cm should be made on the bed with a sowing width of 5cm, a ditch depth of 6cm, a soil cover of 3cm after sowing, and a straw cover. The seedlings can be seeded in the first ten days of March and in the middle and last ten days of May. The seedlings can emerge after sowing in autumn for more than a month. After emergence, remove the mulch in time, cut branches and shade, and often water, maintain a humid environment, strengthen management, weed removal and topdressing, and can be planted after two years of cultivation.

2. Ramet propagation: at the end of winter and the beginning of spring, the old plants with tillers are dug up with roots and planted as they are dug.

3. Striping method: gently press the twigs of the mother tree near the ground into the soil in early spring, so that the soil cover is forked firmly, so that the branches grow out tender roots and new branches on the ground, which can be planted after a year.

4. high-altitude striping method: in late June, select young branches on the mother plant, cut off the branches with a knife at the bifurcation, cut off the branches in a semi-orchard shape, cover them with plastic film or bamboo tube, fill them with moist and fertile soil, tie them tightly with ropes for external use, do not move and keep them moist, and check the new roots in late April of the following year.

5. Cuttage propagation: in summer and autumn, 1-2-year-old twigs are selected and cut into 15-20 cm long cuttings, the upper end is cut flat, and the lower end is cut into horse ear shape. After wetting, 500ppm indole butyric acid and talcum powder powder is oblique to insert into the seedbed, leaving 2 nodes at the lower end, showing a node on the ground, building a shed for shade, keeping the soil moist, and rooting in about 1 month.

6. Grafting propagation: seedlings propagated by seeds need to be cultivated for 7-8 years before they can blossom. When grafted seedlings are planted, they can blossom in only 2-3 years. The commonly used grafting methods are "bud grafting" and "cutting grafting". Cutting and bud grafting are the same as ordinary flowers and trees.

Planting method of Magnolia lanceolata

1. Preparation for transplanting: deep ploughing and soil preparation in autumn and winter, 1-1.5 meters of bed in the next spring, fertilization and weeding during soil preparation to ensure the vigorous growth of seedlings after transplantation.

2. Transplanting time: the suitable time for transplanting is when 2-3 true leaves are grown after the seedling is unearthed, and 1-2 days before the seedling, if the weather is dry and the soil is hardened, the transplanted seedling should be watered thoroughly, once a day, in order not to destroy the root system. When the soil is more consolidated, use a small shovel (2-3 cm wide) to insert it into the soil at an angle of 45 °to help loosen the soil. Then lift the seedlings up until the roots are completely raised from the soil surface.

3. Timely planting: the planting pit can be temporarily dug with a small shovel when transplanting, straighten the seedlings, bury the rhizome 1-2 cm, squeeze the soil tightly with hands, and then water it.

4, light temperature: suitable to live in a sunny environment to grow, sufficient light can make the plant luxuriant branches and leaves, flowers more and more fragrant, can endure the low temperature of-20 ℃ for a short time, overwintering in the open field in Zhengzhou area, and generally in Beijing area, but cold protection measures should be taken when the temperature is lower than-20 ℃, and it is sensitive to temperature, and the flowering time can be advanced by high temperature.

5. Watering and fertilization: fertilizer can be applied twice a year, one is overwintering fertilizer, the other is post-anthesis fertilizer, it is better to use thin and rotten human feces and urine, avoid concentrated fertilizer, watering can be determined as appropriate, less watering in cloudy days, more watering in early days, vigorous growth in spring, slightly greater water demand, watering twice a month, and slightly more in summer. The amount of water is reduced in autumn and is generally watered slightly in winter, but the soil can also be watered once when the soil is too dry.

6. Shaping and pruning: after flower fade and before leaf bud germination. Generally do not prune, because the callus ability of magnolia branches is poor, do not do large shaping and pruning, only need to cut off dense branches, overgrown branches, cross branches, dry and withered branches, disease and insect branches, cultivate a reasonable tree shape and make the posture beautiful. Direct application of the anti-corrosion film on the cut and saw wound can quickly form a tough soft film close to the wood, protect the growth of wound healing tissue, prevent the infection of rot bacteria, prevent soil and Rain Water pollution, prevent freezing, and prevent wound cracking.

7. Florescence control: if you want New Year's Day or Magnolia to blossom during the Spring Festival, you can move the potted magnolia to a low-temperature greenhouse 40-50 days in advance, gradually break the dormancy, and then put it in a high-temperature greenhouse 25-30 days later, maintain more than 60% air humidity, spray flowers with Zhuangtiling, and then blossom, which can promote strong buds, enlarged petals, gorgeous colors, rich fragrance and prolonged flowering period. How to make potted Magnolia magnolia with large flowers, many flowers, fragrant flowers, colorful flowers and long flowering period, the key is to strengthen the flowering management of potted Magnolia magnolia.

8. disease control: Magnolia orchid pests are mainly aphids and shell worms. In the process of management, attention should be paid to the prevention and control of anthracnose in addition to chlorosis and root rot. Shell insects can be sprayed with 0.3% to 0.4% acid vinegar or by hand. Aphids harm buds and flower buds, can be killed by quick-killing, or 500 times the solution of detergent. You can also use cotton swabs with washing powder solution to remove pests, and then spray the branches and leaves with clean water. If the disease is found, the diseased leaves should be removed in time, and 50% carbendazim 500x to 800x aqueous solution should be sprayed to the leaves, or 70% topiramate 800x to 1000 times solution should be used for control.

The planting method of Magnolia Magnolia the difference between Magnolia and Magnolia

Magnolia Magnolia, also known as Magnolia Magnolia, with large white flowers, shaped like lotus flowers, with fragrant smell, is a good garden greening plant. Then how to grow Magnolia lanceolata? What's the difference between Magnolia Magnolia and Magnolia Magnolia? Let's get to know it.

I. planting method of Magnolia lanceolata

1. Season: early spring is suitable for transplanting Magnolia lanceolata trees, but Meiyu season is the best. At this time, the survival rate of Magnolia is very high. However, when transplanting, it is best to choose cloudy or cloudy weather to avoid rainstorm or high temperature.

2. Soil ball: the size of soil ball is the key to the success or failure of transplanting Magnolia magnolia. If the soil ball is too small, the root system is seriously damaged, which makes it difficult to absorb water and affect the survival of trees. The earth ball should be dug into the shape of a gyroscope instead of a plate or cone. The soil ball should be fastened with straw rope to prevent it from becoming loose during transportation.

3. Moisture: the root of Magnolia lanceolata is fleshy and easy to lose water, so it is required to be rapid and timely when digging and planting, so as not to lose too much water and affect survival. After transplanting, the roots of Magnolia should be watered in time for the first time, and should be fully watered and watered thoroughly. If there is too much precipitation after transplanting, it is necessary to open a flume to avoid stagnant water in the roots, resulting in the death of rotten roots of Magnolia.

4. Pruning: Magnolia Magnolia can reduce water evaporation and relieve the water supply pressure of injured roots by pruning and picking leaves. Pruning should trim the inner bore branches, overlapping branches and disease and insect branches, and strive to maintain the integrity of the tree shape; it is appropriate to pick 1 leaf blade of the smooth branches, otherwise it will reduce the transpiration pulling force and make it difficult for the root system to absorb water.

5. Maintenance: after transplanting, the lotus magnolia tree should be dried with grass rope for about 2 meters to reduce water evaporation, and spray water to the grass rope to create a humid environment in case of drought. After planting, a supporting wood should be set to fix the trunk to prevent shaking and damaging the root system. General piling can not play a fixed role, can choose 3 meters to 4 meters long bamboo or other materials made of tripod fixed. If the weather is dry after transplantation, spray on the canopy or high altitude to reduce the leaf temperature.

The difference between Magnolia lanceolata and Magnolia magnolia

1. Magnolia lanceolata is a large evergreen tree with a height of up to 30 meters and an ovate conical crown. Both branchlets and buds have rust-colored pilose. Leaves leathery, long oval, 10-20 cm long, glossy surface, rust-colored pilose abaxially, margin slightly curled. Magnolia is a deciduous tree with a height of up to 25 meters and a diameter of up to 200 centimeters. The crown is narrowly ovoid when young, while mature trees are broadly ovate or loosely ovate. The bark is gray-white, smooth and less lobed when young, and dark gray and rough when old. Branchlets grayish brown.

2, the lotus magnolia is white, the diameter of the flower is 20-30 cm, the flower usually has 6 petals, sometimes 9 petals, the flower is as big as the lotus, so it is also known as the lotus magnolia, fragrant. The florescence is from May to July. The seed skin is red and the fruit is ripe from September to October. The terminal buds and pedicels of Magnolia Magnolia are densely covered with grayish yellow long woolly hairs. The branching habit varies with the age of the tree, and the single bud extends when it is young, so the trunk is obvious and the crown is regular, but after flowering, the mixed buds of leaf branches extend in two or more branches after the ear, and the horizontal development is more prosperous than the straight stem growth, so the crown develops in the direction of wide ovate.

3. Magnolia lanceolata is a magnificent and magnificent tree with thick and bright leaves and fragrant flowers. It is an important ornamental tree species for urban greening. It has strong resistance to smoke and sulfur dioxide gas, and has less diseases and insect pests. The root system is deep and broad, and the wind resistance is strong. Magnolia is mostly planted in front of pavilions, platforms, buildings and cabinets. Now it is more common in gardens, factories and mines to plant alone, scattered planting, or on both sides of the road as street trees.

The above is the planting method of Magnolia lanceolata and the difference between Magnolia magnolia and Magnolia magnolia. I hope it will be helpful to everyone. Magnolia magnolia planted in the courtyard has high ornamental value.