The latest flower ranunculus breeding methods and precautions

Ranunculus is also called celery flower, Persian ranunculus, land lotus flower, etc. It is a perennial herb belonging to Ranunculus of Ranunculus family, native to southeast Europe and southwest Asia. It is low in plant shape, gorgeous in color, upright in flower stem, beautiful and unique in flower shape. It is suitable for planting under trees or on the north side of buildings. It is welcomed by consumers. Let's take a look at the cultivation methods and precautions of Ranunculus together.

Growth Habits of Ranunculus chinensis

Ranunculus chinensis likes cool and semi-shady environment, avoid hot, suitable growth temperature is about 20℃ during the day, 7~10℃ at night, afraid of both wet and dry, suitable for planting in good drainage, fertile loose neutral or alkaline soil, root tuber enters dormant period after 6 months. Likes mild climate, fresh and humid air, growth environment sparse shade, not resistant to cold and freezing, more afraid of hot sun, in most parts of China into dormancy in summer. Potted requirements rich in humus, loose fertile, permeable to strong sandy soil.

Propagation method of Ranunculus chinensis

1, ramet: ranunculus potted to ramet reproduction, usually in the autumn of September to October. After digging out the root tuber that stays dormant for summer, shake off the soil and break it open naturally by hand. Each detached part must have a root neck, and there are 1 - 2 new buds, 3 - 4 small roots. Then put it into 1% potassium permanganate solution for 3~5 minutes for disinfection and sterilization, and plant it after drying slightly.

2, sowing: ranunculus seed reproduction variation, often used for breeding and mass reproduction. The sowing time is in warm spring, after the seedbed is broken, raked and leveled, water is poured once with a fine-eyed watering pot, and the germinated ranunculus seeds are evenly spread on the seedbed after the clear water on the bed surface is permeated. The bed surface is covered with a layer of sieved fine soil about 0.5 cm thick, and then covered with a double-layer sunshade net to cool and moisturize.

Culture method of buttercup

1. Soil: Ranunculus chinensis likes to drain well, fertile and loose neutral or alkaline soil, and apply sufficient base fertilizer when planting. Potted requirements rich in humus, loose fertile, permeable sandy culture soil, available garden soil 2, decaying soil and manure each 1 for pot soil.

2, light: Ranunculus flower is not resistant to strong light, like semi-shade environment, winter light should be sufficient, spring with the increase of temperature and light enhancement, should moderate shade and strengthen ventilation. In addition, buttercup is a long-day plant, and its flowering period can be controlled according to its characteristics.

3. Watering: Ranunculus is wet and afraid of waterlogging. It is drought-tolerant, but it should not be excessively dry. After planting, water should be poured enough for the first time, and then watering should be timely and balanced, and should not be too dry and wet. The degree of watering should be dry soil surface, and leaves do not appear wilting phenomenon is appropriate.

4, fertilizer: Ranunculus before planting should choose decomposed cake fertilizer or animal manure and other organic fertilizer as the base fertilizer, and spread evenly. After transplantation, when the plants grow obviously or grow new leaves, topdressing begins, mainly urea in the early stage and compound fertilizer in the late stage, once every 7 days.

5, temperature: Ranunculus likes cold environment, the best growth temperature during the day is 15~20℃, at night is 7~8℃. The temperature should not be too high or too low, and the temperature difference between day and night should not be too large, otherwise the growth and development of Ranunculus chinensis will be affected, resulting in the decline of flower number and quality.

6. Pests: If the temperature and humidity are high during the growth period of Ranunculus, it is easy to cause excessive growth of plants, yellow leaves and stem base rot. The main pests were root maggot and leaf miner, which were sprayed with 40% omethoate EC 1000 times, and root rot was irrigated with 50% Benlaite WP 1000 times.

7, pruning: Ranunculus is a beautiful plant type, colorful flower plants, growth is relatively rapid. At the initial stage of bud emergence, 3~5 robust buds per plant were selected and removed. At this time, the pot soil should be slightly dry. If you don't need to keep seeds after flowering, you should cut off the remaining flowers in time.

Control of Diseases and Pests of Ranunculus chinensis

1, white silk disease

[Symptoms] The white silk disease mainly affects the stem base of the plant. When the disease is serious, the stem base decays and necroses, the aboveground part is separated from the underground part, the water cannot rise, the branches and leaves wither, and the plant dies.

[Control] At the early stage of disease, spraying 75% chlorothalonil WP 500 times solution and 5% Jinggangmycin 1000 times solution to irrigate the stem base and surrounding soil of plants can alleviate the disease.

2. Penicillium disease

[Symptoms] Penicillium disease mainly occurs in the storage period of root tuber. When the disease is serious, the surface of storage root tuber is covered with a large number of conidia of Penicillium, which is easy to infect healthy root tuber.

[Prevention and Control] The root tuber infected by Penicillium shall be removed and burned or buried in time. The adjacent root tuber shall be taken out and stored after disinfection and drying to prevent Penicillium from infecting healthy root tuber.

3. Virus disease

[Symptoms] The symptoms of damage are that the leaves are wrinkled and uneven, showing mosaic, chlorosis or leaf atrophy, becoming smaller and thicker. When the damage is serious, the diseased plants are obviously dwarfed and withered and die.

[Prevention and control] At the initial stage of disease, spray 800 or 1000 times of 68% virus wettable powder, 100 times of 3.85% virus Bike wettable powder or 800 times of 7.5% Keduling aqueous solution for prevention and control.

4. Root rot

[Symptoms] Plant infection with root rot will cause root rot, turning blackish brown or black, stems and leaves on the ground gradually wilting and turning yellow, and plants will die.

[Control] At the beginning of the disease, use 75% thiophanate-methyl 800 times solution and 50% benzolite wettable powder 1000 times solution to irrigate the roots. Potted plants can be replaced immediately, substrate replacement, control disease expansion.

5. Mosaic disease

[Symptoms] Chlorotic spots appear on the leaves. In severe cases, the plant grows poorly.

[Control] Use healthy seedlings and do not reproduce from diseased plants. Insecticides are sprayed to control aphids. Heat disinfect or wash with lotion.

6. Liriomyza punctata

[Symptoms] Larvae eat tissues in leaves, forming snake-shaped white burrows, and their excretions are black continuous lines produced in the swimming channels. Adults lay eggs and feed, causing circular wounds.

[Control] In the initial stage or about 20 days after the high incidence of female flies, timely alternate with 75% cypromazine WP 5000 times solution, 4.5% beta-cypermethrin EC 1000 times solution, 50% Lesben 2000 times solution, 25% Panzhijin EC 1500 times solution, spray once every 10 days, spray 3 times continuously.