Henan elm seedlings wholesale|Golden leaf elm sales base—Shuhai elm base, the home of leading greening

Henan elm seedlings wholesale | Golden leaf elm sales base - Shuhai elm base, home of leadership greening Henan elm seedlings wholesale Henan elm seedlings sales base Henan elm sales base Henan golden leaf elm wholesale golden leaf elm Chinese golden leaf elm is also called golden leaf elm. Ulmus belongs to the genus Ulmus in the family Ulmus, and is a variety of Ulmus elvis. The leaves are golden yellow, bright in color, and have good texture. The leaves are oval and slightly shorter than the leaves of ordinary white elm. It is a new color-leaf plant variety cultivated by senior engineers Huang Yinran and Zhang Junying of the Hebei Academy of Forestry Sciences. Morphological characteristics: Ulmus sinensis, Ulmus genus of Ulmus family, is a variant of Ulmus leucophylla. The leaves are golden yellow, with natural luster. The veins are clear and the texture is good. The leaves are oval in shape, with an average length of 3.5cm wide, slightly shorter than the leaves of ordinary white elm. The leaf margins are serrated, the tips of the leaves are tapered, and they grow alternately on the branches. The branches of golden leaf elm have strong germination power. Generally, when about a dozen leaves grow on the branches, the axillary buds will sprout and grow new branches. Therefore, the branches of golden leaf elm are denser than ordinary white elm, and the crown is fuller and richer in shape. Cultivation techniques and propagation methods: branch grafting and high grafting: with the purpose of cultivating tree-like golden leaf Ulmus. Grafting time is in March. Summer bud grafting of Ulmus sinensis: use annual seedlings or mature annual seedlings of Ulmus elata as rootstock. At the beginning of the month, select the plump small side branches from the substantial branches of Ulmus sinensis, and use a grafting knife (the grafting knife is required to be very sharp, sharpen it every ~ hour) to cut off ~.cm of skin from a centimeter above the side branch. Without wood, select a smooth part about a centimeter above the ground on the rootstock, cut off the tissue the same size as the bud piece from top to bottom, and overlap the bud piece with the rootstock. Use a plastic cloth strip to cut the bud from top to bottom. The piece is tightly bound. The key to the operation is to select the size of the side branches of the scion. If the side branches are too thick, the side branches cannot be peeled when peeling, and the side branches are easy to come out of the skin, causing bud extraction failure. If the side branches are too thin, the scion will be too thin and difficult to operate. Even if it is peeled, The bud skin is also too narrow, making it difficult to survive. If the peeled bud slices are evenly thin and thick, even if they are wrinkled, they can still be used after being flattened, and the survival rate will not be reduced. Summer bud grafting can generally be carried out until the beginning of the month. During this period, the elm bark tissue is rich in mucus, the scion and the rootstock are easily bonded, and the survival rate can reach above. Autumn bud grafting: The time is mid to late month, and the grafting method of summer bud grafting is used. At this time, the scion has not separated from the skin. The budding time cannot be too early or too late. If it is too early, it will germinate easily. If it cannot survive the winter or too late, the scion will not heal easily and the survival rate will be reduced. Hardwood cuttings for propagation by cuttings: The cutting time is in mid-March. Cuttings can be cut before the winter of the previous year, and strong strips larger than 1.5 cm are selected, cut into ~1.5 cm, tied into bundles, and stored in the sand. Before cutting, take out the cuttings, wash the sandy soil with clean water, and soak the lower part with No. B mg/L for an hour. Generally, cuttings can be carried out directly in the field. The row spacing is 1 cm, and the plant spacing is 1 cm. The cuttings are cut along with the ditching. The cuttings are slightly exposed to the ground. The soil is compacted, covered with mulch, and watered thoroughly. Buds begin to sprout in the first ten days of the month. At this time, the mulch film should be dug out from the eyes of the buds in time to facilitate growth out of the ground. New roots will not grow until the end of the month. Young branch cuttings: The cutting time is in the first ten days of the month. It is easier to manage with full-light mist cutting: cut the nearly lignified branches of the current year, cut them into ~cm, cut off the middle and lower leaves, keep the upper ~ leaves, tie them into bundles, and soak the lower parts with No. B mg/L After an hour, cut the leaves into the sandy soil at a density that allows the leaves to completely cover the sandy surface. Spray immediately after cutting, 3 to 3 times a day. When the temperature is too high, spray more times at noon. The upper part of the sand table and the southern and western half circles should be closed with shade nets. New roots can grow in about days. Nursery management: The nursery land should be selected with flat terrain, good drainage, leeward direction and sunny location, and a place with fencing facilities. The groundwater level shall not exceed .m and the soil thickness shall not be less than 1 cm. Except for saline-alkali soil in plains and chestnut soil in mountainous areas, all soils are suitable for building nurseries, that is, slightly acidic to slightly alkaline sandy loam, loam or clay loam. If these conditions are not met, the soil must be gradually leveled and improved. The water source should be convenient, and there should be self-prepared wells near the nursery. If water is diverted for irrigation, the water transmission distance should be less than one kilometer, and the water value should be between . Engineering maintenance: Ulmus sinensis has strong resistance to stress, and engineering maintenance and management are relatively extensive. After planting, irrigation once or twice can ensure survival. In order to ensure the landscaping effect of the plants, pruning is required once or twice a year (generally spherical, except for special shapes). In addition, attention should be paid to preventing and controlling pests and diseases to avoid affecting the landscape effect. The main value and ornamental value are excellent. In early spring, the delicate yellow leaf buds of Ulmus sinensis bloom, like countless wax plum blossoms blooming on the branches. They are delicate and lovely, bringing people the message of spring early. By the beginning of summer, the leaves become golden and gorgeous, particularly eye-catching, filling the streets. , parks and other scenic spots are decorated magnificently. After midsummer and before the leaves fall, the leaves in the middle and lower parts of the crown gradually turn to light green, and the leaves in the middle and upper parts of the branches are still golden yellow. The yellow and green contrast, giving people a refreshing feeling in the heat. , The whole body is a treasure, and its development value is very high. The branches and leaves of Ulmus sinensis have high protein content and good palatability, and are suitable for animal green feed and feed processing. The elm bark has high vegetable gum content and good quality, and can be used to process and extract vegetable gum. The bark fibers can be used to make ropes, sacks or other products instead of hemp. The shoots and leaves of Ulmus sinensis are used as raw materials for artificial cotton and papermaking. They taste good and are rich in nutrients. They can be processed into high-quality green foods. The material of Ulmus sinensis is hard and can be used for wooden floors and furniture. The fruit, bark and leaves are used as medicine to soothe the nerves and treat neurasthenia and insomnia. . :..