The latest culture methods and matters needing attention of Zhu Dinghong

Zhu Dinghong, also known as Dinghong, solitary flower, Huadin orchid, hundred seed lotus, etc., is a perennial herb of the genus Amaryllidaceae, distributed in Brazil and Hainan Province of Chinese mainland, and has been introduced and cultivated artificially. European and American horticulturists specialize in producing Zhu Dinghong into canned flowers for the convenience of florists. Let's take a look at Zhu Dinghong's breeding methods and points for attention.

Growth habits of Zhu Dinghong

Zhu Dinghong likes warm and humid climate, the suitable temperature for growth is 18-25 ℃, does not like extreme heat, the sun should not be too strong, so it should be maintained under the greenhouse. I'm afraid of flooding. During the dormant period in winter, a cold and humid climate is required, which should be 10-12 ℃ and not less than 5 ℃. Like sandy loam rich in humus and well drained. If the soil moisture is high in winter and the temperature exceeds 25 ℃, the stems and leaves will grow vigorously and hinder dormancy, which will directly affect the normal flowering in the following year. Light also has a certain effect on the growth and flowering of Zhu Dinghong, avoiding strong light for a long time in summer and sufficient sunshine for cultivation in winter.

Breeding method of Zhu Dinghong

1. Sowing: Zhu Dinghong is picked and sowed, and the germination rate is high. The sowing soil is a mixture of 2 parts of peat soil and 1 part of river sand. The seeds are larger and should be sowed on demand, the distance between them is 2 ~ 3 cm, the suitable temperature for germination is 15 ~ 20 ℃, the seedlings emerge at 10 ~ 15 days, and the seedlings are divided into two true leaves. It takes 2 to 3 years from sowing to flowering.

2. sub-ball: the seed ball is propagated in large quantities by artificial ball-cutting method, that is, the mother bulb is longitudinally cut into several parts, and then divided into two halves in the middle, so that part of the bulb disc is attached to the lower end of the bulb as the root part, and then cut in the cutting bed mixed with peat soil and sand, properly watered, after 6 weeks, two small balls can occur between the scales and take root in the lower part. Nearly a hundred young bulbs can be obtained from such a mother bulb.

3. Cutting: cut the cue ball longitudinally into several pieces, then cut its scales, and insert them obliquely in vermiculite or sand. It was planted when 2 true leaves were grown. When planting false bulbs, the pot soil is too easy, which will delay flowering or reduce the number of flowers. The mixed soil of 5 parts of sandy loam, 2 parts of peat soil and 1 part of sand can be used.

Culture method of Zhu Dinghong

1. Soil: the planting soil of Zhu Dinghong requires loose and fertile sandy loam, and the pH is 5.5-6.5. do not accumulate water. The basin soil can be mixed with 2 parts of mature stable fertilizer soil, 6 parts of rotten leaf soil and 2 parts of sandy soil.

2. Watering: Zhu Dinghong needs to keep the plant moist and water thoroughly. But avoid too much water, poor drainage. General indoor air humidity is OK.

3, sunshine: Zhu Dinghong likes the sun, can have the right amount of direct sunlight, not for too long. It should be placed in front of a window with bright light, good ventilation and no bright light.

4. Temperature: Zhu Dinghong likes warmth and is not resistant to cold. Summer should be cool, the temperature should be 18-22 ℃, winter dormancy requires a cold and dry environment, the temperature should not be lower than 5 ℃.

5. Fertilization: Zhu Dinghong likes fertilizer and begins to apply topdressing when the leaves grow to 5-6 cm long. generally, rotten cake fertilizer is applied every half a month, and once every 20 days after anthesis, to make the bulb enlarge and produce new bulbs.

6. Insect pests: in order to make Zhu Dinghong grow vigorously and blossom as soon as possible, disease and pest control should be carried out. Anthers should be sprayed once a month, and anthers should be sprayed around 9: 00 a.m. and 4: 00 p.m. on a sunny day, but should not be sprayed in the hot sun at noon to prevent drug damage.

7. Pruning: Zhu Dinghong grows fast and its leaves are long and dense. when changing pots and soil, the fallen leaves, withered roots, diseases and insect pests should be cut off, leaving exuberant leaves.

Matters needing attention in Zhu Dinghong Culture

The main results are as follows: 1. Zhu Dinghong should keep the indoor temperature about 10 ℃ during hibernation nursing. the bulb is easy to freeze when it is lower than 5 ℃. When the humidity is higher than 15 ℃, it hinders its dormancy and affects its flowering in the next year.

2. Zhu Dinghong will also appear the phenomenon that the flower arrow similar to that of Magnolia can not fully elongate and blossom, which can be solved by creating a temperature difference of 8: 10 ℃ between day and night.

3. When the arrow of Zhu Ding safflower is long and the flowers are large and long, a pillar should be set up to protect it to prevent it from tilting and bending.

4. Zhu Dinghong was cut off from the base of the flower arrow in time after fade, so as to avoid the consumption of nutrients in the plant and facilitate the sprouting of new flower arrows.