What are the breeding methods of Lily of the Valley? Who can tell me?

Lily of the Valley (scientific name: Lily of the Valley), also known as Eupatorium odoratum and Lily of the Valley, is the only species of Lilium. Growth habit: like cool, humid and semi-cloudy environment, extremely cold-resistant, avoid hot and dry. It grows on the shady side of the hillside, under the forest and on the grass on the edge of the forest. I like fertile sandy loam with good drainage. Cultivation techniques: Lily of the valley likes semi-cloudy, humid and cool environment, and is cold-resistant and heat-resistant. Under the condition of low temperature, direct sunlight can also breed and bloom. When the temperature is above 30℃, the leaves of plants will wither prematurely, so they need to be planted in places with higher altitude and no heat in the south. As long as there are proper shading conditions in summer dormancy, it will multiply rapidly by expanding roots. I like sandy loam rich in humus, moist and well drained to avoid drought. Planting soil covers more than 5 cm, and water it after planting. Like slightly acidic soil, it can grow normally in neutral and slightly alkaline soil. It is best to plough deep into fertile land. It needs to be replanted every 3 ~ 4 years, or rotated with other flowers. [2] The plant row spacing is 25-30cm, each cluster has 2-3 buds, and the coverage depth is 5-6cm. After the aerial parts wither in late autumn, cover them with rotten leaves and cow dung to protect the roots and dormant buds from overwintering in the open air. When potted, you can choose fat and huge rhizome buds in June 5438+065438+ 10, store them at 3℃~5℃ 14~2 1 day, then take them out and plant them in pots, with 4 ~ 5 buds in each pot, and keep them in the dark at/. After the buds germinate, they are moved to the sun. At this time, the temperature is controlled between 20~22℃, and then appropriate watering and topdressing are performed. If low temperature and dark treatment are not carried out in advance, leaves will often grow unevenly and flowers will not germinate. You need to change the basin once a year. In the process of cultivation and promotion, cut off the root crown, put it indoors at 2-3 degrees Celsius, treat it at low temperature for 2-3 weeks, take out the upper pot and put it in the shade, move it into the greenhouse at 12- 14 degrees Celsius five weeks before the required flowering period, water it properly, put it in the dark, and move it gradually after10-5 days. If cultivation is promoted without low temperature and darkness, it often does not germinate or germinate, but the growth of scape and leaves is irregular, which hinders viewing. Water and fertilizer management: Water lily seedlings should be permeable after planting, and cover them with compost or straw curtain in winter to prevent cold. In spring, after the buds germinate, remove the plastic film, weed and loosen the soil to keep the soil moist. Apply 1 times decomposed cake fertilizer every two weeks, and suspend fertilization after pulling out pedicels. After the flowers wither, if you don't look at the fruit, you should cut off the flower branches in time and apply liquid fertilizer 1 time to promote the growth of dormant buds. For those planted in the open field, the concentrated fertilizer should be applied 1 time before winter, so as to grow vigorously in the next spring. Lily of the valley has strong naturalness and extensive management, but it is worth noting that too much nitrogen fertilizer should be avoided and less ammonium nitrogen fertilizer should be used. Light and temperature There should be proper sunshine before flowering, and it is more resistant to shade after flowering. Collected 1, growing on the grass on the shady side of hillside, under forest and forest edge. 2. Choose shady hillsides, forests and grasslands with thick humus. Contour line or Hengshan belt, bandwidth 1.5m, belt spacing 2m, and hole spacing 50x20cm. Dig holes, break ground, suppress, and take the shape of steamed bread. 3. After the fruit is harvested, the whole grass is harvested, the soil is removed and dried. Pest control native wild species often grow in groups, and there are few pests and diseases. Greenhouse planting is easy to breed pests and diseases, and common fungal diseases include stem rot, anthracnose and leaf spot. Copper fungicides should be used regularly for prevention and control at ordinary times, and it is strictly forbidden to collect seeds of diseased plants for reproduction. Once the infected strain is found, it should be destroyed and removed immediately to prevent its spread. If there is brown spot, spray it with 700 times of 75% chlorothalonil wettable powder.