Key points of propagation of Campanula chinensis

The color of bluebells is fresh and elegant, which is very popular in Europe. It is also a common herbal flower in small courtyards in late spring and early summer. It is very beautiful. The cultivation of bluebells is not difficult, and artificial propagation can be done by sowing, cutting and ramet.

Canterbury bell

Campanula is mainly sown and cultured, and it can also be planted or cut to raise seedlings. Form a capsule after flowering, and there are many seeds in the fruit. The seeds are very small and can be dried and stored in the sun. In spring or in late winter and early spring, the seeds are sown in a plastic shed to facilitate staggered high temperature and summer heat during flowering. According to the requirements of small seeds, soil preparation should be meticulous, crushing the soil more than 2 times, scraping the ground, drenching enough water, and then sowing our seeds evenly.

After sowing, it is no longer covered with soil or thinly covered with sifted fine soil. Spray water with sprayer in the seedling stage, and replenish the seedlings according to the growth of the seedlings. The seeds can also be sown in a sand table, and compound fertilizer can be applied immediately after seedling emergence. When the seedling height is about 10 cm, it is transplanted to the nursery or planted in the upper basin. The row spacing of the plants planted in the nursery should be 20 cm x 40 cm, and the root water should be fixed after transplantation, and then be managed according to general management. It can also be sown in autumn. Generally, the seedlings sown in autumn need to be cultivated to the spring and summer of the following year before they can blossom. Ramets are carried out more than in autumn and can blossom in the following year after being cultivated for one winter.

The cuttings are more than the new buds germinated at the base in spring, inserted into the wet sand bed, often sprayed to moisturize, and then transplanted after growing roots.

Key points of cultivation of Campanula

Latin name: Campanulacarpatica

Classification: Campanulaceae Campanulaceae

Planting requirements: all-day sunshine

Application: planted in rock courtyard, can be potted

Seed type: common species, about 13000 seeds per gram

Recommended varieties: the 'clip' plant is about 20 cm high, has a strong branching property and has the habit of forming spherical clusters. Numerous flowers, shaped like wind chimes, exquisite leaves. It is very suitable for growing on the edge of rock courtyard and stone wall, and can also be used as flower border. It can be produced all year round. The colors are blue, dark blue and white. 'Pearl'

The plant is 18 cm tall and blossoms early, about 2 weeks earlier than the 'clip' series. Consistency and compactness are very good. The flowers are upward and have the habit of forming balls in clusters. The colors are dark blue and white.

Stage 1: radicle germination stage

The seeds can germinate from 14 to 18 days after sowing, with a daily temperature of 20 ℃ to 22 ℃ and a night temperature of 16 ℃. The soluble salt content in the matrix was kept low and the pH value was kept between 5.5 and 6.2. There is no need to cover the seeds after sowing. Keep the soil slightly moist but not too moist. Avoid direct sunlight after sowing and should be shaded properly. Alternating temperature changes will stimulate seed germination, and supplementary light after germination can promote plant growth and flowering.

Stage 2: the emergence and growth of cotyledons begins from this stage, the soil moisture should be reduced appropriately, but it should not be too dry. The EC value of culture medium should not be higher than 0.5. You can start spraying fertilizer, and the balanced nitrogen fertilizer of 50ppm is suitable.

Stage 3 and 4: true leaf growth, development stage and seedling refining stage

During these two stages, the fertilizer concentration can be increased to 150ppm to 200ppm.

Cultivation and management

1. Transplantation: 6 to 8 weeks after germination, flowerpots with a diameter of about 9 to 11 cm can be used for transplantation. Don't plant too deep when transplanting.

two。 Substrate: the cultivation substrate needs to be well drained, the clay content in the substrate is 20% to 30%, and 1 to 1.5 kg of fully balanced fertilizer is applied to each cubic meter of substrate. The matrix should contain iron chelates and micronutrient elements with a pH value of 5.5 to 6.2.

3. Light: it belongs to long sunshine plant.

Cultivation method 1: spring plants begin to grow under short-day conditions for 2 weeks, when supplementary light is needed for 10 to 12 hours, 20 to 30 watts per square meter. When the plant grows to the ideal height, the sunshine time can be extended by 16 to 18 hours in order to promote the flowering of the plant. The replenishment of light needs to be interrupted at night.

Cultivation method 2: first of all, in order to enable the plant to grow in the first 3 weeks of cultivation, the plant should be placed under the condition of short day light, and the light should be replenished for 10 to 12 hours, 20 to 30 watts per square meter. When the plant grows to the ideal height, the sunshine time can be extended by 16 to 18 hours in order to make the plant blossom. The replenishment of light needs to be interrupted at night.

4. Temperature: the suitable temperature for childbearing is from 13 ℃ to 18 ℃. When there is no frost in winter, the indoor or outdoor temperature can be maintained at 3 ℃ to 5 ℃. Outdoor cultivation needs to be covered. In spring, plants begin to grow at a temperature of 15 ℃ to 18 ℃ for 5 to 9 weeks. The cultivation time will be prolonged under the cool temperature of 13 ℃ to 15 ℃. The flowering of plants does not need to go through vernalization.

5. Fertilizer: the amount of fertilizer required by plants is medium. Nitrogen and potassium balanced fertilizers with the concentration of 150ppm to 200ppm were applied alternately every week (the ratio of N:K2O was 1: 1. 5). Excessive content of ammonium and nitrogen should be avoided. Do not apply fertilizer after mid-September. In order to prevent magnesium and iron deficiency, magnesium sulfide with a concentration of 0.025% can be sprayed 1 to 2 times, and iron chelates 1 to 2 times, respectively.

6. Cultivation tips: outdoor pot planting should be sprayed with fungicides to prevent the reproduction of Botrytis cinerea, Rhizoctonia and Pythium. Bluebells can be sold when their flowers reach 10 to 15. Plants are easy to transport at this stage.

(the reporter is anonymous)

What are the key points of cultivation techniques in the cultivation of lily of the valley?

Picture: planting of lily of the valley

[FAQ] what are the key points of cultivation techniques for the cultivation of lily of the valley?

[expert answers]

1. Select the place

The valley of the valley prefers a cool, humid environment and is hardy. The lily of the valley is not too strict about the soil. But the fertile and loose soil has strong growth, luxuriant branches and leaves, and strong fragrance of flowers. Therefore, it is more suitable to choose medium or upper-middle fertility, slightly acidic soil, semi-overcast and semi-sunny areas.

2. Planting season

Lily of the valley after the leaf is followed by scape, before the leaf is the best time to cultivate the lily of the valley. After the leaves withered in autumn, they can also be cultivated before freezing, especially in spring.

3. Plant distance

First of all, the land should be leveled and turned 30 centimeters deep. the barren soil can apply 4-5 kilograms of farm manure per square meter. Border planting can make the border 1.5 meters wide, and the length is determined by the plot. The suitable density is 30cm × 20cm, the width of ridges is 30cm, and the plant spacing is 15cm.

When cultivating seedlings, because the roots of the seedlings are tender, they should be careful when cultivating, and the plant spacing can be denser; the depth is 2 cm above the ground with the tip of the seedling. For the cultivation of adult seedlings, the survival rate is high with the freezing of lichens about 20 cm in early spring, some plants can blossom and bear fruit in the same year, the root system should be extended during cultivation, the depth of soil cover should be 2-3 cm, and it should be permeated and sealed when drought. clean the root system when transplanting, cut off too many rhizomes to do breeding roots.

4. Management

The key to planting seedlings is to eradicate weeds. In particular, the roots of seedlings should be shoveled frequently and shallowly to prevent loosening of seedlings. Adult seedlings are mainly loosening soil, preserving soil moisture and watering during drought to prevent weeds from growing. If the soil fertility is insufficient, farm manure is applied once after leaf withering or sprouting. Due to the elongation of rhizome, more latent buds and increased density of perennial land, the seedlings of multi-dense seedlings should be thinned properly at this time. Deep shovel and deep shovel can be used to kill seedlings and artificial seedlings.

5. Disease and pest control

Lily of the valley in the cultivation area, no diseases and insect pests are found, generally do not need chemical control.

[editor's comments] Lily of the valley, also known as bluebells, its flowers are very beautiful and lovely, many people like to plant plants of the valley to appreciate, so, how to plant the valley of the valley? Above the first Agricultural Economics Xiaobian shared with you the key points of the planting and cultivation techniques of the valley of the valley, interested friends can dig in depth to understand, this article is introduced for you here, I hope to help you.