Rhododendron cultivation and management in Belgium

Belgian azaleas, also known as Western azaleas. It has a large amount of flowers, a long flowering period and fast growth. It is a rare flower introduced from the Netherlands and Belgium in recent years. Azalea family, a small evergreen shrub. First, the flower habits: Belgium Rhododendron is an acidic flower, fibrous roots well-developed, and small, when planting should choose loose, good permeability of the soil, to the best under the forest humus soil. When growing high temperature and humidity conditions. Second, cutting propagation: Belgium rhododendron growth period is long, can be cut throughout the year, generally the best of spring and autumn. 1. Bedding: bed height 15 cm, width 1 meter, length 10 meters, remove weeds, roots, stones, cracked soil to make a bed mold, then spread a layer of 2 cm thick humus soil compaction, and then in A layer of screened yellow mud soil with a size of 0.2 mm to 0.3 mm was laid on top and the thickness was between 1.5 cm and 2 cm. 2. Harvesting branches: Collecting semi-woody branches from the growing mother plants for the year to make stalks, long branches, can remove the next section. 3. Cuttings: Cuttings length 6 cm to 8 cm, keep the top 3 to 4 leaves, cutting depth of 0.5 cm to 1 cm, too deep can easily cause the basal surface of the turbinate water decay, affect the rooting; too easy to lose Water wilt. Plant spacing can be 2 cm 3 cm. 4. After the management: After the cuttings are drenched with water, covered with a thin film, covered with a shading net (summer cut cover two layers), to maintain high temperature and humidity in the bed, every 3 days to 5 days hand pressure bed Observe the humidity conditions. If the humidity is not enough, you should apply water in a timely manner and seal it immediately after it is poured. Generally, new roots can be grown from 20 days to 30 days, and transplants can be planted after 45 days to 50 days. According to the experiment, the survival rate of the seedlings was about 90% according to the above technical measures. Third, the cultivation and management: Belgium Rhododendron flower cultivation techniques are more complex, strict requirements on fertilizer and water, different seasons management measures. Generally do the rainy season to avoid water, summer shade, cold winter, while artificial control of the flowering period to be accurate. 1. Soil disinfection: In addition to requiring loose and acidic soils, Belgian rhododendrons require strict soil environmental conditions. When planting seedbeds for soil preparation, 1.5 kg of carbofuran per acre and potassium permanganate solution diluted 1000 times are used for soil disinfection to prevent and control ground tigers, cockroaches, cockroaches, and diseases; potted soil can be steamed before planting. Kill or disinfect with potassium permanganate to make the soil clean, hygienic, and free of pests. 2. Fertilizer management: Rhododendron australis grows quickly, has many branches and leaves, and has a long growing period. It needs sufficient fertilizer and water. According to its small fibrous roots, fertilization is mainly foliar fertilizer supplemented with peanut bran as base fertilizer. At present, there are mainly foliar treasures on the market, green Fenwei I, II, III, love more income, high yield spirit, etc., can be used interchangeably. Do thin Shi Qin Shi, generally once a week fertilization, spraying fungus 2 times a month, when the application of leaf fertilizer bactericidal. At the same time, the leaves were greenish and 5% ferrous sulfate was used as an acid supplement. Moisture conditions are also very important for its growth, except for rainy days, generally two days of planting seedlings watered once, potted seedlings once a day water, indoor furnishings, dripping water, leaching. 3. Shade: Belgium Rhododendron is a semi-shade flower, outdoor planting, summer must have shading facilities, shading is about 75%, balcony planting if there is the West, in the afternoon can be moved into a dark place. The rainy season should be managed as a shelter from the rain. Long-term rain showers can cause water accumulation in the roots, defoliation, and even the death of plant roots. 4. Reasonable pruning: As a mother tree, pruning and cutting can be repeated several times a year. As an ornamental plant, pruning twice a year, for the first time after the Spring Festival flowers are finished, cut off all flower stalks and trim the branches; the second time, before the end of each lunar month of June, cut off all the top buds. Each pruning should be neat, can not miss shear, combined with plastic; usually trim irregular buds. To achieve the lush foliage, reasonable tree shape, bud ideal trim effect. 5. Cold protection: Do a good job in winter cold weather, open-air planting, night use of film cover. 6. Pest control: The common pests and diseases of Belgian rhododendron flowers include: ground tigers, aphids, woodworms, and leafhopper moths. They can be controlled by drugs such as carbofuran, methamidophos, and dimethoate.