Pot cultivation method and Culture points for attention of Flower Plant Zhu Dinghong

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.

Maintenance skills of Zhu Dinghong

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

2. Fertilization: Zhu Dinghong likes fertilizer, fertilizing once every semimonthly with the growth of leaves, stopping fertilization during flowering, continuing to apply fertilizer after flowering, mainly phosphorus and potassium fertilizer, reducing nitrogen fertilizer, and stopping fertilization at the end of autumn. Potted plants can add some calcium superphosphate as base fertilizer.

3. Soil: Zhu Dinghong requires sandy loam rich in organic matter, good drainage and avoid sticking heavy soil.

4. Temperature: Zhu Dinghong can be cool and dry in winter dormancy, and the suitable temperature for growth is 5: 10 ℃.

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

Overwintering Management of Zhu Dinghong

1. Bulb overwintering: dig out the bulb in the first ten days of October (be careful not to damage it), cut off the upper stem and leaves, wash the root soil, or dry in the sun or shade, wait for the bulb epidermis and scissors to dry, put it in the indoor dry place or concentrate on sand storage.

2. Potted plants overwintering: those with soil in the original pot must be placed in the greenhouse. The basin soil must be kept dry. If the soil is too wet and the plant continues to grow, it will hinder its dormancy and affect the normal flowering of the following year. Due to the high humidity in winter, the flower buds in the bulbs are easy to rot, resulting in no flowers in the following year. The plants overwintering in pots produced flowers and leaves earlier than those in dry storage.

3. Overwintering in the open field: in the south of the Yangtze River, the winter can be overwintered in the open field, and the treatment method is simple. The leaves are cut off in late autumn and early winter, and the scales are covered with soil or straw. The plants that overwintered in the open field grew vigorously the following year. The bud is strong, but it is prone to rot in rainy and snowy areas and poor ventilation in the sun.

4. seedlings overwintering: Zhu Dinghong seedlings should be cultured in the greenhouse, continue to water and fertilize, and keep it alive in winter, so that it can grow rapidly at the beginning of spring. Adult bulbs can be obtained in advance by this method.

Disease prevention and metallurgy of Zhu Dinghong

1. Spot disease: spot disease harms 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.

2. Virus disease: virus disease causes red root and leaves to rot, which can be used. After invasion, it causes disease of leaves and stem flowers, and gradually spreads to the bulb. The bulb needs to be soaked in 43 ℃ warm water and 0.5% formalin for 3 hours to achieve the control effect.

3. Nematode disease: nematodes mainly invade from stomata in leaves and flower stems, cause disease in leaves and stem flowers, and gradually spread to the bulb. The bulb needs to be soaked in 43 ℃ warm water and 0.5% formalin for 3 hours to achieve the control effect.

4. Red spot: red spot damages leaves, flowers, scape and bulbs, resulting in round or fusiform reddish brown spots, especially in autumn. Diseased leaves should be removed, soaked in 0.5% formalin solution for 2 hours before planting, and sprayed with Bordeaux solution in spring.

What if the leaves of Zhu Dinghong turn yellow?

1. Metabolism: if the leaves of Zhu Dinghong are yellowed properly, it is generally the normal metabolism of the red plants, and the old leaves will gradually turn yellow and fall off. In this case, there is no need to change the maintenance habits. Just cut off the old yellowing leaves.

2, variety difference: there are many varieties of Zhu Dinghong, which is not inferior to tulips. Generally, the leaves of Zhu Ding Hong are green all the year round, but the leaves of Phnom Penh are yellow stripes in the green. if the leaves grow smoothly and normally, it is not caused by any disease, but the difference between varieties.

3. Too much watering: Zhu Dinghong likes to be wet, but avoid stagnant water, no matter too much watering in pot or open field cultivation will cause leaves to yellowing. Zhu Dinghong should not be often watered. It is better to keep the basin soil slightly dry, but it still needs to provide sufficient water during the growth period. In addition, it should also be planted with soil with good drainage performance to avoid stagnant water in the basin soil.

4. The light is too strong: Zhu Dinghong likes the light, but the light should not be too strong. Such as hot summer sun exposure, will cause leaf tip scorch, leaf yellowing. Zhu Dinghong should be placed in places where the sun is not too strong to maintain or take appropriate shading measures in the middle of summer.

5. Improper fertilization: excessive fertilization of Zhu Dinghong or application of insufficiently mature organic fertilizer, especially under high temperature in summer, will cause fertilizer damage and make the leaves yellow. Zhu Dinghong can not apply unfermented mature fertilizer, can not apply pure phosphate fertilizer.

6. Disease infection: when Zhu Dinghong suffers from leaf spot disease and leaf blight, it will also make the leaves yellow. The initial stage of the disease can be sprayed with 1000 times of topiramate or 1500 times of topiramate or 65% of Dysen zinc, once a week for several weeks.

7. Pest harm: the main pest of Zhu Dinghong is the red spider, and the leaves will be damaged and yellowed when the red spider appears. When the red spider is less, it can be caught by hand, and when it is more serious, it can be sprayed with 1000 times of triclofenac EC.