What are the cultivation methods and propagation methods for lavender?
Lavender is a genus in the lavender family, native to the Mediterranean coast, Europe and Oceania. Many of our friends love lavender products. So do you want to know how lavender is grown? This is an editor's piece suitable for everyone. Introducing lavender breeding methods and propagation methods.
Lavender cultivation methods
1. Spring management
Newly planted seedlings and perennial seedlings are put into the soil at the end of May of the following year. Water when the temperature rises, and water the key water for seedlings and old plants. One week after watering, loosen the soil to maintain temperature. Apply 19 kg of urea, 15 kg of superphosphate and 30 kg of oil residue to old seedlings on 667 sq m. For fertilizing, loosening, protecting and warming, it is beneficial to the growth of lavender in spring.
2. Management from growth stage to full bloom
Newly planted seedlings should be watered with fixed-root water, watered 4 to 5 times a year, and weeds should be plowed in time. The flower buds that appear on the seedlings on June 20 should be destroyed in time to promote multiple branches of the plant and lay the foundation for autumn production and high yield next year. Old seedlings should be removed from the field, and buds should be watered in early May. In June, water at flowering.
3. Harvest at the right time
When 30% of the field flowers have finished blooming, 70% of the flowers can be harvested, generally at 10 am on a sunny day is the better harvest period. When harvesting, there should be no leaves and debris. The harvested flowers are transported back to the workshop for processing. If processing is not completed, they should be placed in a cool shed to cool and keep the flowers fresh.
Lavender breeding methods
Lavender breeding methods mainly include sowing, cutting, layering and rooting, mainly using cutting and sowing methods.
Seed propagation
Lavender seeds are very small and should be transplanted. The sowing period is generally chosen in spring. Warm areas can be sown from March to June or from September to November each year. Cold areas should be planted from April to June, and lavender is planted from May to October each year; it can be sown in a greenhouse in winter. The germination days are about 14 to 21 days. Germination temperature: 18-24°C. After germination, appropriate light is needed; weak light easily causes leggy growth. The seed dormancy period is relatively long. Before sowing, soak the seeds for 12 hours, then soak the seeds with 20-50 ppm gibberellin for 2 hours, and then sow. Before planting, the land should be level and fine, and water should be poured. After the water seeps down, spread the seeds evenly, then cover with a layer of fine soil 0.2 cm thick, and cover with grass or plastic film to protect the bed. Keep at 15-25°C; the seedbed needs to be moist, and seedlings can appear in about 10 days. If not treated with gibberellin, it takes one month to germinate. Germination below 15°C takes 1 to 3 months. During the seedling stage, pay attention to spraying water. When the seedlings are too dense, the seedlings can be thinned appropriately. When the seedlings are about 10 cm tall, they can be transplanted.
Cutting propagation
Cutting is usually carried out in spring and autumn. Summer branch cuttings can also be used. The cutting medium can be mixed with 1/3 sphagnum moss and 2/3 coarse sand. Select well-developed and well-growing strains, choose annual semi-lignified branches with short, thick and emerged shoots, and cut 8-10 cm branches from the top. The cut at the incision should be close to the stem and strive to be smooth so that the phloem does not rupture. Remove the leaves from the bottom 2 parts, insert into water for 2 hours, then insert the soil into the soil, and roots will form in 2 to 3 weeks. It can also choose 8-10 cm annual branches, with good drainage and kept moist. Under bed temperature conditions of 20-24°C, rooting takes about 40 days. Do not use terminal buds that have already formed inflorescences, because flowering branches are aging, which will adversely affect future growth. Cover the cuttings and make the ground. After pouring water, cover with film and cut immediately. The depth is 5 to 8 cm, and the row spacing is 20 to 25 cm. Pay attention to raising the ground temperature and promoting root development; prune and extend branches, pick flower spikes in time, promote branching, and cultivate strong seedlings. The planting distance is 60 cm, and the row spacing is 120 cm. Water immediately after planting.
Bacterial propagation
It can be carried out in spring and autumn. It is divided into 3-4-year-old plants, divided into spring mature roots and 3-4 months, each with bud eyes.