Plastic trimming
Pick buds in time during bud stage, so as to concentrate on supplying nutrients and promote colorful flowers. Pruning branches is usually carried out in spring and autumn. Cut off cross branches, over-dense branches, overlapping branches and weak branches, and remove residual flowers in time. Plastic surgery is generally a natural tree, with a little artificial modification, which is arbitrary because of the tree shape.
Flowering period control
From June+10 in 5438 or 20 days before the Spring Festival, the potted flowers were moved to the sunny place at 20℃ in the greenhouse. Other management is normal, and flowers can be seen during the Spring Festival. If you want to see the flowers in May 1 day, you can move the flowerpot indoors below 5℃ for cold storage before germination in early spring, move it to the sunny place in the greenhouse at 20℃ in April 10, and move it out on April 20th, so you can see the flowers on May 1 day. Therefore, the temperature can adjust the flowering period, and it will open at four o'clock as you like. In addition, the plants cut immediately after flowering can bloom in late June at 65438+ 10; If pruned in the peak season, the flowering period can be delayed by about 40 days; If pruning is combined with cutting, the flowering period can be postponed to February of the following year. Therefore, pruning in different periods also affects flowering time.
Fertilization skills
Rhododendron fertilization should grasp the season, and the concentration allocation should be timely, appropriate and moderate. Rhododendron has a fine root system and strong water and fertilizer absorption ability. It likes fertilizer, but it is afraid of thick fertilizer. The excrement of ordinary people is not suitable, and it is suitable for top dressing alum to fertilize water. Fertilization of rhododendron should be carried out according to different growth periods. From March to May, in order to promote the growth of branches and buds, apply fertilizer 1 time per week. June to August is the midsummer season. Rhododendron grows slowly and is in a semi-dormant state. Excessive fertilization will not only make the old leaves fall off, but also make the new leaves yellow, and it is also prone to pests and diseases, so fertilization should be stopped. In late September, the weather gradually turned cold, and azaleas grew in autumn. Applying 1 times liquid phosphate fertilizer every 10 day can promote the growth of plant flower buds. After 10 months, the growth in autumn basically stopped, and it was no longer used.