The name of the cycad tree is cycad, which is also known as schizophylla, phoenix, etc. It is an evergreen tree of the cycad belonging to the cycads and is an ancient and precious relict plant. The cultivars in China are mainly cycads originating in the mountains of Fujian. In recent years, Sichuan Panzhihua cycads, Yunnan cycads, etc. have also been introduced and cultivated in various places.
Su Tie planted plants up to 8 meters. Pots 2 to 3 meters. Stem is thick, cylindrical, the surface is dense dark brown dry shrinkage leaf base and leaf marks, like pineapple-like, very rare branches. On the stems of perennial old plants, shoots usually grow from adventitious buds and grow into small stems called suckers. Must be root meat. Large plumes are clustered at the top of the stem. The length and length of the leaves are usually proportional to the age of the tree. The longest is up to 2 meters and the lobule is more than 100 pairs. The slivers are closely arranged neatly on the petiole and thickly leathery. Each year, a new cluster of leaves is sprouted from the top of the stems in the center of the forest. The lower leaves dry year after year. Flower top, dioecious. Female inflorescences are oblate-globose, palmately similar, densely brownishly hairy, male inflorescences pine cone-shaped, yellow, flowering usually from July to August. Seeds oval, slightly flat, red and shiny.
Cycads like sunshine, but also resistant to half shade. It grows well under warm, moist and fresh air conditions. It is not tolerant to cold, and the plants are planted in the areas north of the Yangtze River basin. Northern potted plants should be kept away from the scorching sun in spring and autumn, and the hot summer rain season should be kept away from pots and earth. Acidic soils are required, and symptoms of leaf yellowing often occur in alkaline soils. Resistant to fertility, the growth pauses in poor soils and often does not sprout new leaves for many years. Cycad grows slowly, usually stems grow only 1 cm to 2 cm long each year, and its life span can reach 200 years.
The cycads are multiplied by budding. Stems with a height of about 1 m often sprout and grow into one or two small stems, which can be cut off from the mother and planted in the matrix of vermiculite and humus soil, keeping 40% of the total. Moisture content is maintained in a high-temperature, shade-shaven environment. In late spring, fibrous roots and shoots can sprout. If you do not see the leaves stretch, you can cover with a film to promote growth. If the sucker is cut off prematurely from the mother's culture, the initial growth is very slow, and it is best to allow the sucker to grow on the mother's body for 2 to 3 years and then cultivate under the division. It is easy to take root and sprout.
The potted cycads should be planted in different types of pots according to the size of the plants, using a slightly acidic sand culture soil rich in humus, loose fertility, and strong permeability. The bottom hole of the flowerpot (wood barrel) should be opened large, and a layer of broken tiles should be laid on the bottom of the basin as a drainage layer to prevent root rot. It is not necessary to change basins every year, but it is necessary to chase organic liquid fertilizers frequently. It is better to use sesame sauce or bean cake water to make the leaves green and shiny. The northern part of the water quality is slightly alkaline. It is best to water 1/500 ferrous sulfate aqueous solution for about two weeks. In the summer, it is necessary to keep the basin moist. Winter moved into low-temperature greenhouse maintenance. In late spring, the room is out of mid-April. For example, if a greenhouse is grown in medium or high temperature and the new leaves are sprouted in the early spring, they must be moved to the outside in the spring after the dry wind passes through. Putting them under shade canopies, the new leaves will be fully developed and then moved to sunlight, otherwise the new leaves will be prone to scorch. damage.
Su iron is vulnerable to scale insects. Scale insects are mostly hidden on the back of leaflets, and they are also prone to coal pollution in poorly ventilated environments. Attention should be paid to ventilation and timely drug control.
Small cycads can be used for desks or several furnishings in bright interiors. They can also be used for bonsai viewing.
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