Introduction to the propagation method of swallow grass

Swift grass can be used for flower bed decoration and edge greening, and can be cultivated in pots or containers. In general, delphinium can be propagated by sowing, cutting or ramet. The editor will introduce you to the breeding method of delphinium, and friends who like it can learn about it together.

Swallow grass

There are many seeds in the fruit, and the seeds are small, which are collected and dried and stored in a cool and dry place in the room. In order to blossom in many seasons, the seeds can be sown by stages, but the cultivation in the south should stagger the flowering period in midsummer and hot days. Delphinium is a straight-root plant with few whisker roots and is not resistant to transplantation. In the south, the winter can be overwintered by direct broadcast in autumn or spring. The cold regions of the north should be sown in spring; autumn sowing in the warm areas of the north can cover the open field for the winter, or need to move cold beds or low-temperature greenhouses to survive the winter. Sow seeds in a seedling tray, pour enough bottom water, sow about 20 grams per square meter of seedling bed, and control the suitable temperature. the germination time of delphinium seeds is one of the longest species of herbaceous flowers in the open field in 2012, which usually takes 15 minutes and 20 days. After emergence, the seedlings should be transferred to a container (7-8 cm in diameter) as soon as possible.

In addition, perennial swallows of the same species can also be propagated by cuttings and ramets. Cutting seedlings are raised in spring and picked and planted in wet sand beds or sand tables. Ramet can be carried out in spring and autumn, the seedlings germinated around the old plant, dug up with roots, divided into small plants, if the spring ramet can blossom in the same year.

The Propagation method of Swallow

Delphinium is a taproot plant with few whisker roots, so it is suitable for direct seeding and transplanting with soil mass. More resistant to cold, like the sun, afraid of summer heat, avoid waterlogging, it is appropriate to grow on deep and fertile sandy soil. Today, I will introduce the breeding method of delphinium.

The method of reproduction of delphinium:

Seed reproduction:

The suitable temperature for germination is 15 ℃ on the left, and the best temperature is less than 20 ℃. It will germinate in about two weeks. Autumn sowing in late August to early September, first sowed into the open field seedbed, before winter into the cold bed or cold room to winter, warm spring planting. The seedlings were directly broadcast in the open field in early spring in the south, and the distance between seedlings was kept at 25cm. In the north, seedlings are generally raised beforehand and planted in April, 2-4 true leaves and 4-7 true leaves. Pay attention to drainage on rainy days. The ripening period is inconsistent, and it should be naturally cracked after ripening, so it should be harvested in time. Generally, the ripe seeds will be harvested for 1 or 2 times in June, and all the seeds will be harvested and dried in July. Cutting propagation is carried out in spring, when the new leaves grow out of more than 15 centimeters, cut cuttings, insert into the sand.

Ramet propagation:

It can be carried out in spring and autumn, usually once every 2-3 years.

This is the end of the introduction of the breeding method of swallow grass. Feiyan grassland is produced in southern Europe and is cultivated in all provinces of China.

The culture method of swallows grass

Swallow is a perennial herb of Ranunculaceae. It is native to southern Europe and is cultivated in various provinces of China. Because of its unique flower shape, it is very similar to the name of a swallow. The flower diameter is about 4 cm, elegant and lovable. It is often planted in flower beds, flower borders, and can also be used as cut flowers. Let's take a look at the breeding methods of swallow grass.

The growth habit of delphinium

Swallow grass has strong adaptability to climate, and the humid and cool climate is more suitable. The optimum temperature for seed germination is 15 ℃, and the suitable temperature for growth period is 20: 25 ℃ in daytime and 3: 15 ℃ at night. Like light, slightly able to withstand shade, the growing period can be in the semi-shade, the flowering period should be full of sunshine. The acid soil, which is fertile, moist and well drained, can also tolerate drought and water temperature slightly, and the best pH value is 5.5-6.0.

The Propagation method of Swallow

Delphinium can be propagated by seed or cuttage. The seeds were sown in late August to early September, first sowed into the open nursery bed, entered the cold bed or cold room before winter, and planted warm in spring. The seedlings were directly broadcast in the open field in early spring in the south, and the distance between seedlings was kept at 25cm. In the north, seedlings are generally raised beforehand and planted in April, 2-4 true leaves and 4-7 true leaves. Pay attention to drainage on rainy days. Cutting propagation is carried out in spring, when the new leaves grow out of more than 15 centimeters, cut cuttings, insert into the sand. Ramet propagation can be carried out in spring and autumn, usually once every 2-3 years.

The culture method of swallows grass

1. Maintenance: swallow must keep the soil moist after sowing. The easiest way is to cover some grass and gradually remove the mulch after emergence.

2. Transplant: when delphinium grows 2 true leaves, take soil and transplant it in a small basin, wait until the seedling grows up, and then change the basin again.

3. Watering: swallow watering should be dry and wet, and a little more water should be properly watered during the flowering period to avoid excessive dryness of the soil.

4. Fertilization: when swallows were changed, dry manure was applied as basic fertilizer, and then, according to the growth situation, rotten cake fertilizer and water was applied one to three times a month.

5. Height control: paclobutrazol was used to control the height of the plant after changing pots, and 0.5% paclobutrazol was applied every 2 weeks.

6. Seed collection: the seed of delphinium should be collected in time to avoid fruit cracking after ripening.

7. Diseases: Swift grass often has black spot, root neck rot and chrysanthemum leaf blight that damage leaves, flower buds and stems. It can be sprayed with 30% topiramine wettable powder 500 times.

8. Insect pests: delphinia pests are often harmed by aphids and night eggs, which are sprayed with 2000 times of deworming essential oil.