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Rhododendron cultivation techniques
Azaleas, alias Azalea, red mountains, Ziyang. The rhododendron is a evergreen or deciduous shrub. Varieties are spring, summer, spring and summer. Azaleas have a cool climate, high air humidity, and an acidic, loose soil environment. Its roots, stems, and leaves can be used as medicine to treat internal injuries, rheumatism, sore throat, and cough. First, the breeding can be divided into strains, layering, cuttings, sowing and so on. The ramets are carried out after the clusters of large plants fall; the battens are carried out in March-April, and the vine shoots are cut approximately 3-4 cm, buried with soil, leaving the upper part of the shoots, and the self-pressing stalks after 1 year. The Ministry cut off from the plant. Cuttings, the use of the year when the new shoots for cuttings, cut in April-June 5-6 cm long shoots, leaving 2-3 leaves at the top, inserted loose in the acid soil; sowing, carried out in the spring. Second, the spring cultivation of 1. Prepare basin soil. 1-2 years old seedlings can be humus 80%, coal ash 15%, and other 5% of the base fertilizer configuration. More than 3 years old seedlings, according to humus 60%, coal ash 20%, 20% of other rotting fertilizer configuration. It can be transplanted in spring and autumn. 2. Thin fertilizer applied. The spring root system is shallow and fine, and the fertilization can be divided into four stages: (1) When the new shoot is germinated, nitrogen fertilizer-based precipitating fertilizer should be applied. 2 After giving thanks, nitrogen-based fertilizers are applied 2-3 times. 3 During the autumn flower bud differentiation and the bud stage, it is advisable to apply 2-3 fertilizers mainly composed of phosphate fertilizer. 4 Before flowering, apply fertilizer 2-3 times with phosphate fertilizer and nitrogen and phosphorus. 3. Choose water quality. Chunxi hi acidic water, avoid alkaline water. If tap water is used, 0.5% to 1% ferrous sulfate or 300 times vinegar must be blended before pouring. 4. Reconcile the degree of moisture. Chunxi hi moist, generally require basin soil water content in 60% -70%, air relative humidity in 70% -80%. 5. Position well. Chun Xi hi half shade, afraid of light. 1 to 2 years old seedlings require 60% to 70% light, and seedlings over 3 years old require about 50% light. The placement of flower pots throughout the year should be shifted according to seasonal changes. 6. Pest Control. Prevention is the main method. Before germination of winter and spring shoots, pots, pots, soils and plants are sprayed 2-3 times with thiophanate-methyl 600-800 times solution or the same amount of Bordeaux mixture; after germination, 50% more wettability is obtained. 600 times liquid spraying of mycotoxin, once a week, even spray three times; midsummer season, prone to spider mites, available 50% dichlorvos emulsion 2000 times liquid spray.