The appearance is tan, and the cork is red-brown at the flaking; there are intermittent stripes on the branches, nodules are enlarged, and the shape is like a bead. Most of the hard and delicate roots and fibrous roots are born, and some surfaces are smooth and smooth, such as stalks. It is commonly known as "crossing the river branches" or "crossing bridges"; there are brown scales on the upper part, and there are residual stems or petioles that have not been cleaned at the top. The quality is firm and hard, the section is irregular, the skin is dark brown, the wood is golden, the rays are cracked, the central pith is red and yellow, and occasionally hollow. Odorless, very bitter taste, chewing saliva can be dyed red and yellow. It is better to use fat, beaded, solid, red-yellow, no residual stems and fibrous roots.
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Potted cocoon maintenance management
The cocoon is Sankoh, which belongs to the evergreen tree. In the south, it can grow into a big tree, and in the north there are many potted plants to watch. There are many species in the same species. The stem is light green when young, brown or gray when mature. Branches droop softly, single leaves alternate, leathery, oval or elliptic, apically long apex, base cuneate. Cocoon native to tropical Asia, warm, moist and sunny environment. Avoid cold drying. The suitable growth temperature is 13°C to 30°C, and the winter temperature is not lower than 7°C. Suitable for fertile, loose, well-drained soil. The basin soil can be made by mixing garden soil, leaf-curing soil and a small amount of river sand, and a small amount of basal fertilizer is added to the basin. The soil pH is between 6 and 7.5 and it is not resistant to thin and alkaline earth. During the growing season, cake water (bean cakes, sesame oil cakes, etc.) can be applied once a month. Adaptable to the light, in addition to shade in summer, the other seasons can fully accept the sun. Watering in line with the principle of not dry. In the vigorous growth period, sufficient watering is required, and water is often sprayed on the leaves to maintain high air humidity. When the temperature is low in winter, it is necessary to control the watering so as not to cause rot in the basin. When the stems and leaves grow in time, pruning promptly promotes the germination of more lateral branches, and cuts away the dense branches, dead branches, cross branches and internal litchi, so as to facilitate ventilation. According to the condition of the plants in the pot, the pots were changed 1 to 2 years. Breeding is often used cutting, layering, grafting method. (1) Cuttings should be conducted from May to June. Cut the top shoots 10 to 12 cm long, leave 2 to 3 leaves on the top, remove the rest of the leaves, and cut them flat. In order to prevent the secretion of milk, the incision can be coated with wood ash. Insert the cuttings into Susanna, keep the substrate moist, spray every day, and root at 25°C for 1 month. (2) Batten propagation: often used in the upper air layering method, conducted from May to July, selecting the last year's strong and robust branches, ring peeling 15 cm from the top, 1.5 cm in width, and dressing with leaf and plastic film for 1 month After rooting, cut off the mother plant and plant directly. (3) Grafting and breeding: spring and summer can be used, rubber trees can be used as rootstocks, and the cocoon scions are grafted by grafting. Pay attention to leaf spot disease. It can be sprayed with Bordeaux mixture at the beginning of the disease. Insect pest attention red spider. The beautifully-decorated tree, with its evergreen year-round, fresh leaf color, and good resistance to negatives, can be used to create bonsai. It is the best of indoor decoration leaves, decorated with halls and rooms, and is very refreshing and pleasing to the eye.