The main points of propagation of scallions

Spring onion is a perennial herb, which is very cultivated in northern China. It is one of the varieties decorated and beautified by flower border, rock garden or lawn. The difficulty of artificial cultivation of scallions is not high. Artificial propagation of scallions can be done by sowing and ramet.

Big scallions

I. seed propagation

In the first ten days of July, the seeds matured and dried in the shade, and the seeds were stored at 5 Mel and 7 ℃ at low temperature. It was sown in autumn from September to October and sprouted in March of the following year. In summer, the upper part also withered and formed small bulbs, and the sowing seedlings needed about 5 years to blossom.

2. Separate plant propagation

Peel off the bulbs around the main bulb in mid-September and plant them. In the middle of September, the seed bulbs around the main bulb were peeled and selected the sandy loam soil with low groundwater level, good drainage, loose and fertile soil as the cultivation land. Bulb reproduction is carried out in summer and autumn, and each female ball can be divided into 1-3 small balls, of which the larger bulbs can blossom in the second year after planting.

The main points of cultivation of large scallions are colorful flowers, peculiar flower shapes, simple management and few diseases and insect pests. They are varieties decorated and beautified by flower diameter, rock garden or lawn. Big scallions are also known as giant onions and green onions. Liliaceae, Allium. Origin and habits: green onions are native to Central Asia and the Mediterranean region. Like cool, like sunshine; require loose, fertile, well-drained sandy loam. Morphological characteristics: scallions are perennial herbs with a height of 50 cm to 110 cm. Bulb, bulb with white membranous skin. Ye Jisheng, broadband shape. Umbels Terete, most florets densely globose, 10-15 cm in diam., pink to light ultraviolet color, capsule, florescence May-June. Propagation techniques: spring onions are mainly sown and bulbous propagation. Most of the sowing and propagation were sown in the open field in September, the optimum temperature for germination was 10: 15 ℃, and the soil was covered 1.5cm after sowing, and germinated in the next spring. It takes three or four years to blossom. When dividing bulbs, the mother bulbs are often divided into 2-3 bulbs after flowering, and they can be planted separately. Management techniques: the cultivation land of scallions should apply fully mature organic fertilizer and add appropriate amount of phosphorus and potassium fertilizer as base fertilizer. The soil above the planted bulb is about 15 cm, and the distance between plants is about 35 cm. It was watered once in 2-3 weeks after planting, and then watered again before winter. After the soil surface is dry, loosen the soil once. Strengthen moisture management until flowering after emergence in the next spring. Ornamental value: spring onions are important ornamental flowers all over the world. The flower stem is tall and straight and strong, and the large globular inflorescence is very spectacular, which is unique in flowers. Make more flower diameter strip planting or cluster planting in front of shrubs and lawns. It is also a popular cut flower material. How do you grow green onions? Planting and management techniques of scallions

Spring onion is a common ornamental plant in landscaping, its flower stem is tall and straight, the flower color is bright, the spherical flower is more chic, has a high ornamental value. So, how to grow green onions? Now the planting management technology of scallions is introduced as follows.

Picture: scallions

I. the planting method of scallions

1. Reproduction of scallions: (1) seed reproduction. The seeds of scallions were collected and dried in the first ten days of July, stored at 5: 7 ℃, sowed in autumn from September to October, and germinated in March of the following year. In summer, the upper part also withered and formed small bulbs, and it took about 5 years for sowing seedlings to blossom. (2) ramet propagation. The bulbs were propagated in summer and autumn, and the bulbs around the main bulbs were peeled, and the sandy loam soil with low groundwater level, good drainage, loose and fertile sandy soil was selected as the cultivation land. each female ball could be divided into 1-3 small balls, and the larger bulbs could blossom in the second year after planting.

two。 Spring onion is a kind of flower with very low natural proliferation rate of bulb, but if it is removed as soon as possible after the appearance of scape, and the nutrients are concentrated on the development of regeneration bulb and bulb, the number of bulbs can be increased appropriately. If the aboveground part dies in summer, the bulbs can be dug out, large and small bulbs can be separated, and the ventilated place can be put over the summer.

3. Large scallions are planted after autumn, those whose bulbs are more than 3 centimeters can blossom after planting, and those less than 3 centimeters need to be cultivated for one year before they can blossom. Bulb proliferation rate green onions like cold and sunny environment, which requires loose and fertile sandy soil and avoid stagnant water. It is suitable for cultivation in the north of China.

Picture; scallions

4. The open field cultivation of scallions should choose sandy soil with low groundwater level, good drainage, loose and fertile sandy soil as the cultivation land. the time of planting bulbs should be from mid-late September to early October, and the row spacing is 20 × 30 cm. The depth of planting is that the thickness of the overlying soil on the bulb is 2 / 3 times that of the fresh stem.

5. After planting, spring onions are slightly pressed flat, and then watered, so that there is no need to cover against cold in winter. When the leaves are unearthed in March of the following spring, loosen the soil and water in time, cooperate with liquid topdressing and water once every 10-15 days, pay attention to ploughing, loosening soil and weeding, and add a small amount of artificial spray or shade in dry places, which can ease the change of withered and yellow leaves in early summer.

6. The stems and leaves withered after the onion blossoms, and the bulbs should be dug up as early as possible before the rainy season, so as not to rot after the rain, put them away in a ventilated and dry place, store them in an indoor ventilated place, plant in 9 ~ 10 months, the planting land should not be planted continuously, pay attention to the application of rotten organic fertilizer, it is rainy in summer and need timely drainage. Scallions get their name because of their large inflorescences.

Picture: scallions

2. Key points of management of scallions

1. Soil: the growth of scallions requires loose, fertile sandy soil and good drainage.

two。 Light and temperature: green onions prefer sunny growth environment, do not like semi-shade, the suitable temperature for growth is between 15 ℃ and 25 ℃, prefer cool. Winter generally does not need to do a lot of cold protection measures, the ground part of spring onions will die in summer, the underground bulbs can be dug out and preserved in a ventilated place.

3. Watering and fertilization: spring onions need to do a good job of water and fertilizer management, watering should be combined with fertilization. During the growing period of scallions, you need to loosen the soil and water in time, usually fertilizing every 2 to 3 weeks. You can apply some thin liquid fertilizer and water it with fertilization. When the summer is hot and the air is dry, the air humidity can be improved by shading or spraying. When it is rainy, timely drainage is needed to avoid stagnant water but bulb rot.

[editor's conclusion] large flowers and scallions avoid damp, hot and rainy, continuous cropping, semi-overcast and stagnant water, which requires special attention in the process of maintenance. The above introduces the planting management technology of scallions. I hope it can be helpful to you!