Xiangxuelan likes sandy soil with loose, strong water retention and good drainage. Before planting, the soil was disinfected and irrigated with the solution of pentachloronitrobenzene, bromomethane and enandan. Use after 5-7 days.
Before planting, the ball should be disinfected as follows.
Soak the seed ball in 800 times of tolbutine or carbendazim solution for 1-2 hours, remove it and dry it in a cool place.
Put the seed ball in a relatively warm environment to promote the growth of rhizome and break its dormancy period. When the root grows 2-3cm, it can be transplanted.
Keep the soil moist after transplanting and before sprouting. After budding, gradually increase or decrease the amount of watering, try to keep the soil dry, reduce the air humidity, and reduce pests and diseases.
During the period from colonization to flowering, the basic fertilizer in the soil can basically meet the growth of plants, but if the plants are thin and weak, when they grow to 2-4 leaves, the top dressing is once, mainly ammonium nitrate, urea and potassium sulfate. Do not apply fertilizer when budding, so as not to cause excessive leaf growth and affect flowering. When flowering, potassium dihydrogen phosphate was applied as foliar fertilizer to promote flowering.
Usually after 6 weeks of planting, the inflorescence will gradually differentiate. When the plant grows 4 leaves, the temperature is kept at about 13 ~ 14 ℃, which promotes the growth of leaves. The temperature of flower bud differentiation was controlled at 10 ~ 25 ℃, and the temperature was increased appropriately after budding to promote flowering. When the temperature is reduced to 15 ℃ after flowering, the flowering period can be prolonged.
When the first leaf grows, it should be properly shaded to reduce soil temperature and promote root development.
When it grows to 4-6 leaves (flower bud differentiation), 10 hours of sunshine is guaranteed, which is conducive to flower bud differentiation.
After flower bud differentiation, the time of illumination should be prolonged properly to promote inflorescence development and early flowering. During this period, direct sunlight shall be avoided. Under the condition of too strong light and high temperature, 30% light shall be blocked.
The flower branches are soft and the inflorescence is curved. When there are many flowers, the flower branches droop and fall. So when the plant grows 3-4 leaves, you can pull the net. About 25 cm from the ground, the first layer of net is set, and 2-3 layers of net are set with the growth of plants. The mesh size is 10cm × 10cm or 10cm × 15cm.
