The latest culture methods of Magnolia

Magnolia, Magnolia, Magnolia

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.

Culture methods of Magnolia Magnolia

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.