Most of the rhododendrons can be planted and potted, and only the western azaleas are delicate and potted.
(1) The land is planted according to the characteristics of azaleas with fine roots, shallow distribution, good drainage of acidic soils, alkalinity and heavy clays, and avoiding the characteristics of concentrated fertilizer and flooding. The selected soil is acidic, loose, with high humus content and good drainage. Azaleas are cultivated on the cool shade of the air.
In autumn, dig large pits (the size of the pits is determined by the characteristics of the seedlings, generally higher half-arborized varieties of the tree crown, pit depth, width of 1m is appropriate; crown crown type with smaller crown to 60-80cm60-80cm Appropriately) Apply enough base fertilizer to plant. Planting can no longer be fertilized in the year, and planted fertilized water is mainly used after 2-4 years of planting.
Rhododendrons like fertile soil, but because of their thin roots, it is easy to rot with concentrated fertilizers, so the fertilization of rhododendron should be light, and it should be applied multiple times. From budding to flowering, top-dressing 2-3 times thin glutinous rice cake fat; after Xiehua, apply 1 liquid nitrogen-based fertilizer, or Gong Fei Shui (with 2-3kg ferrous sulfate, manure 10-15kg mixed cake fertilizer 5 -6kg, add 150-200kg of water, then compost the cooked fertilizer. Two times 0.2% potassium dihydrogen phosphate or 0.5%-1% superphosphate was sprayed twice during flower bud differentiation. In the hot summer, fertilization stops. From early to mid-July to early August, it is possible to top-up one or two times of liquid fertilizers based on phosphate fertilizers. Each topdressing should be cultivating and weeding, often keeping the soil loose. Digging fertilization ditch before winter, applying organic fertilization of phosphorus fertilizer.
Rhododendrons like wet, afraid of dryness and afraid of earthworms, as long as the soil is kept moist, watering is not necessary, but in the shoots and flowering stages of sprouts, we must ensure the supply of water. In the severe drought year, we must also pay attention to pouring. Water is guaranteed to ensure normal flower bud differentiation. Regardless of the season, pay attention to drainage after heavy rain and heavy rain.
The shape of the tree planted in rhododendron is mainly natural. In places with intense heat, shady shades will be used. In the growing season, attention should be paid to sprouting twigs, controlling buds, and removing too many buds and streaks. In the dormant period, it is necessary to pay attention to plastic trimming, and in addition to natural forms, it can also be arranged into umbrellas, spheres, and pagodas. Pruning should be cut off too dense lumps, cross-branches, disturbing tree-shaped leggy branches, as well as pests and branches, dead branches, etc., to maintain good ventilation and lightening of the crown.
(2) potted potted soil with 7 pieces of rotted leaves, 1 piece of garden soil, 2 pieces of mixed sand, pH 4.5-5.5 acidic culture soil. Flowers planting technology avoid bogey high pots, generally use plain pots, pots and other shallow basin or shallow wooden box as well. The pelvic floor pad is covered with a layer of coarse sand and then potted earth. Before sprouting, it should not be planted too deep, nor should it be too shallow. After planting the irrigated water, place it in a cool place, and then put it in a fixed place after it is rooted. The basin is changed once every 2 years.
The water management of rhododendron potted plants is very important. It is necessary to keep the basin soil moist, ventilated, and not to water, so as not to cause root damage. If you need to water, mainly acidic water, one time to drench, to see the water as the degree of pelvic floor. The water supply must be ensured during the growing season, and it must be timely and appropriate before and after flowering. Large water and drought will affect flowering, and dormancy will be based on the principle of non-dried potted soil. In the summer, it is best to spray water on the leaf surface and spray water around the flowerpot.
Rhododendron needs fertility in spring, summer, autumn and winter seasons, and fertilization is stopped during flowering. From early spring to early summer, thin glutinous rice cake fat is dispensed every 10 days or so. 6-8 months of spraying 0.2% potassium dihydrogen phosphate, Xiehua 1 nitrogen fertilizer-based liquid fertilizer or manure water. Into the beginning of autumn, top-dressing 1-2 times of cake fat. At the end of the fall, the shooter controls the fertilizer and prepares for winter.
Plastic flower pots are generally refurbished into umbrellas, pagodas, hydrangeas, cantilevered, protuberances, and dragons. The shaping method is as follows:
Umbrella: trunk lOcm or so, no center dry. Four to four main branches are distributed around the main trunk. The main branch naturally divides the lateral branches and expands to the surrounding. The upper leggy branches are picked in time to promote branching.
Pagoda type: trunk about 10cm, the trunk extends into the center dry, then the main branch in the center dry to generate 2-4 layers. When pruning each year, the upper layer is controlled, the lower layer is supported, and it becomes a pagoda year by year.
Embroidery spheres: Shoots are evenly distributed in the tree canopy. After about 10 cm in diameter, after drying, the first branch of the lower part is cultivated in the first 4 years to ensure that the main lateral branch grows robustly; in the next 4 years, the second branch is cultivated, and then the ceiling is put. In 10 years of training into a spherical shape. When the pruning is performed, the apical advantages are mainly controlled by pulling, supporting, lifting, bending, plucking, shearing, and the like.
Cantilever type: The main method is to dry the center and then use the wire to bend and form 90. Then extend horizontally.
Precipitous type: In the seedling stage, the center stem is gradually bent downwards, and then the top is developed so that the branch shoots downwards to form a protuberance.
Panlong style: The lychee is delicate, and when the sun shines at noon, it twists and twists several branches and twists upward to form a Panlong style.
When changing the basin, trim the dense slender branches, cross branches, overlapping branches, lateral branches, disease branches and branches, and long slender roots. During the growing season, the buds are removed, the buds are removed, the buds are removed, the residual flowers are removed, and the hearts are picked up.
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