How to raise cold-resistant trees in South China in Qingdao? Can you survive?
sow seeds
65438 10 and mid-June, the harvested fruits were dried in the shade in a ventilated place indoors, and the capsules were sown immediately after they were cracked and taken out. If you can't sow immediately in autumn, you can keep the temperature constant and sow in February-June of the following year. Greenhouse can be planted all year round. After accelerated germination of sand storage, it can be planted in the soil around March of the following year.
cultivate
Cold-resistant flowers planted on the ground are divided into garden cultivation and nursery cultivation. Landscape planting should be equipped with shade trees, and nursery planting should be done in rows. Fertilization should master three key stages, namely: topdressing in March to promote the growth of spring shoots and buds; Topdressing in June promotes the growth of secondary branches and improves drought resistance; In June, basal fertilizer 10- 1 1 was applied to improve the cold resistance of plants and lay a good foundation for new shoots in the next spring. Garden cleaning is one of the effective measures to prevent and control diseases and insect pests and enhance tree vigor. Winter ploughing can eliminate overwintering pests. Intertillage weeding needs to be carried out 3- 15 times a year, and the high temperature season in summer depends on the situation. When transplanting cold-resistant flowers, it is best to add 1/2- 1/3 cutting pine needles decomposed by 1 year to the garden soil. Transplanting in June or March of the following year, avoiding transplanting in high temperature season. Water in the first month of transplanting: water regularly. The amount of water usually depends on the season. Before and after the Qingming Festival, plants enter the period of growth and germination, and the amount of water should be gradually increased. After the new shoots stop growing (around the end of May), watering should be properly controlled to promote flower bud differentiation. June-July is the rainy season, so waterproof work should be done well. In hot summer, it is necessary to spray water on the leaves for 2-3 times, and the spraying should be carried out in the early morning or evening. Don't spray water at noon, and don't pour cold water under the scorching sun, so as not to cause root system maladjustment and physiological defoliation. Don't water too much, and be careful not to let the roots rot. When the air humidity is high, reduce the amount of watering. In case of drought, dehydration and wilting of branches and leaves in hot summer and autumn, it is necessary to water the plant with a diameter of 60 cm and cover it with grass to minimize water evaporation. . In winter, plants gradually enter hibernation. In the case of no precipitation in the whole winter, you can choose to spray water once a day in sunny mornings (equal to artificial snowfall). In the first year after transplanting, because the root system is not completely rooted, plastic film with a diameter of 60 cm should be laid in winter to take safety and anti-freezing measures. There is no need to take anti-freezing measures in the second year.