What should Zhu Dinghong pay attention to during the dormant period?

Zhu Dinghong is a perennial bulb flower, which blossoms in spring, grows in summer and autumn, and the bulb goes dormant in winter. In order for the bulb to germinate and bloom early, attention should be paid during its dormant period:

Control of ① temperature

Potted plants should be moved indoors for the winter and the leaves should be cut off. The room temperature should be kept at 5: 10 ℃. If the temperature is lower than 5 ℃, the bulb is vulnerable to freezing injury, while more than 10 ℃ will affect flowering. Cold protection measures should be taken before frost in open field cultivation; bulbs can also be dug, dried and stored in an indoor ventilated place at room temperature.

Moisture control of ②

Water less during the dormant period to keep the bulb from withering. If you move indoors in winter, you should pay attention to the circulation of air and keep it dry. At the beginning of January, you can pour through water to free dormancy, turn the basin or replace the new soil in time after sprouting.

After Zhu Dinghong blossoms and dies, the pedicel should be cut off in time. Because this stage after anthesis is mainly to raise the bulb, make it fully absorb nutrients, make the bulb enlarge and produce new bulbs, cut off the pedicel is to let nutrients concentrate on the bulb. After anthesis management, in addition to the appropriate reduction of watering water, we should also pay attention to the basin soil can not accumulate water, so as to avoid rotten bulbs. Cake fertilizer and water should be applied about 20 days after anthesis to promote bulb enlargement and germination of new bulbs. it was not until after November that it was moved into the greenhouse to stop fertilizing, control watering and keep the bulb from drying up.

The maintenance measures of Zhu Dinghong during the dormant period Zhu Dinghong, also known as Gudinghua, Baizhilian and trumpet flower alias Dinghong, Huazhong orchid, Guding flower, counterpart lotus and so on. Any of various perennial bulbous herbs of the genus Amaryllidaceae. After Zhu Dinghong blossoms and dies, the pedicel should be cut off in time. Because this stage after anthesis is mainly to raise the bulb, make it fully absorb nutrients, make the bulb enlarge and produce new bulbs, cut off the pedicel is to let nutrients concentrate on the bulb. After anthesis management, in addition to the appropriate reduction of watering water, we should also pay attention to the basin soil can not accumulate water, so as to avoid rotten bulbs. Cake fertilizer and water should be applied about 20 days after anthesis to promote bulb enlargement and germination of new bulbs. it was not until after November that it was moved into the greenhouse to stop fertilizing, control watering and keep the bulb from drying up. Zhu Dinghong bulb is dormant in winter, and the dormancy period is about 60 days. If it is well maintained during the dormancy period, it can germinate and blossom again in the following year. During the dormant period, Zhu Dinghong should pay attention to the following problems: ① strictly controls watering. As mentioned in the previous section, watering during the winter should at least keep the bulb from withering, otherwise the bulb is easy to deteriorate. ② strictly controls room temperature. That is, the indoor temperature is about 10 degrees, and the bulb is easy to freeze when the temperature is less than 5 degrees. When the humidity is higher than 15 degrees, it hinders its dormancy and affects the flowering of the following year. The bulbs isolated from the basin soil by ③ can be hidden in the indoor sand with a water content of about 10%. At the end of December or early January, it can be watered once in the basin to awaken it from dormancy, and a week later, a thin liquid superphosphate is applied again, and the room temperature can be raised to about 16 degrees, which can promote its germination and early flowering. After flowering, pay attention to the fruit of the aboveground part after flowering, while the underground part grows bulbs. In order to make the bulb grow full, robust and full seeds, attention should be paid to ① fertilization during maintenance. Liquid fertilizer should be applied 1-2 times after flowering, and compound fertilizer should be selected, or phosphorus and potassium fertilizer should be added, which is beneficial to the growth of bulbs and seeds. ② moisture. Do not need frequent watering, the matrix should be dry. ③ potted safflower should be moved to a semi-overcast, well-ventilated cool environment for maintenance. The main diseases of disease control include virus disease, spot disease and nematode disease. Spots harm leaves, flowers, scape and bulbs, resulting in round or fusiform reddish brown spots, especially in autumn. Diseased leaves should be removed; bulbs should be soaked in 0.5% formalin solution for 2 hours before planting, and the same amount of Bordeaux solution should be sprayed regularly in spring. Virus disease causes red roots and leaves to rot, which can be sprayed with 75% chlorothalonil wettable powder 700 times. The nematode invaded mainly from the stomata on the leaf and flower stem, caused the disease of the leaf and stem flower, and gradually spread to the bulb. The bulb needs to be soaked in 43 ℃ warm water and 0.5% formalin for 3-4 hours to achieve the control effect. Pests are harmful to red spiders and can be sprayed with 1000 times of triclofenac EC. How to maintain Zhu Dinghong during dormancy Zhu Dinghong (scientific name: Hippeastrum rutilum), also known as Safflower Lotus (Hainan Flora), Huazhong Orchid (Economic Flora of North China), Huazhihua, Baizhilian, column Dinghong, Zhu Dinglan, Guting Flower, Huazilan Orchid, Baizi Lotus, Baizhilian, pair Red, pair Red and so on. It is a perennial herb of the genus Amaryllidaceae.

Zhu Dinghong bulb is dormant in winter, and the dormancy period is about 60 days. If it is well maintained during the dormancy period, it can germinate and blossom again in the following year. During the dormant period, Zhu Dinghong should pay attention to the following problems: ① strictly controls watering. As mentioned in the previous section, the amount of water used during the winter should be small enough to keep the bulb from withering, otherwise the bulb is easy to deteriorate; ② strictly controls room temperature. That is, the indoor section maintains a temperature of about 10 degrees, and the bulbs are easy to freeze when the humidity is lower than 5 degrees, and when the humidity is higher than 15 degrees, it hinders its dormancy and affects the flowering of the following year; the bulbs isolated from the basin soil by ③ can be hidden in the sand with about 10% water content in the room. At the end of December or early January, it can be watered once in the basin to awaken it from dormancy, and a week later, a thin liquid superphosphate is applied again, and the room temperature can be raised to about 16 degrees, which can promote its germination and early flowering.