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Why is the dawn redwood a precious relict tree species?
Scientific name: Metasequoia glyptostroboides Family and genus: Taxodiaceae, Metasequoia genus. A deciduous tree, a precious relict plant of our country. The dawn redwood has the advantages of rapid growth, strong adaptability, a straight trunk, and few pests and diseases. The wood is relatively light and easy to work, but its strength is weak and it is not decay-resistant; it is used as timber for construction, furniture, papermaking, and so on. The dawn redwood is highly cold-resistant and requires moist soil; it can grow on lightly saline-alkaline land. It is huge and upright, with luxuriant branches and leaves and changeable leaf color, suitable for concentrated block afforestation or clump planting, and is also an excellent tree species for greening around the four sides and in courtyards.
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Key Cultivation Techniques for Floribunda Roses in Street Planting
I. Selection of planting site: It grows best in an environment with ample light, good air circulation, nutrient-rich soil and good drainage. II. Soil replacement and preparation: Because road construction mostly involves compaction by large machinery, the soil structure is severely damaged and its aeration and drainage performance is poor. Therefore, before planting, the soil at the planting site must be replaced with loose soil rich in humus, to a depth of more than 50 cm. If the soil below is still compacted hard by machinery, that layer must be dug through before replacing the soil, so as to facilitate water infiltration.
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A Detailed Guide to the Cultivation Method of Natural-Style Tree Roses
Natural-style tree roses differ greatly from ordinary tree roses. Because special cultivation measures are used, it effectively solves problems such as the slow thickening of the trunk in ordinary tree roses and the difficulty of multiple varieties coexisting on one tree over the long term, and it also makes new breakthroughs in tree lifespan. This method has unique features from rootstock cultivation to grafting and then to later management, and it is a mature method for cultivating high-quality tree roses. Industry experts generally believe that this technology is currently at a leading level both domestically and internationally. Cultivation of natural-style tree roses
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Why does a tree rose (standard rose) bloom little?
A tree rose refers to a single-stem, tree-like arbor form of rose produced through artificial horticultural techniques, giving it a trunk and a crown, and it retains the rose's characteristic of blooming profusely. However, after many tree roses are planted, they not only fail to retain the rose's profuse-blooming characteristic, but may even fail to bloom at all. Based on years of observation, study and exploration of tree roses, the author summarizes the reasons as follows. 1. Insufficient light and poor ventilation. As everyone knows, the rose is a strong sun-loving flower, and tree roses are no
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Key Management Techniques for Greenhouse Peach Trees Before Temperature Increase
I. Pruning To ensure a relatively good yield from greenhouse peaches, long-branch pruning should be adopted, keeping as many branches as possible and removing as few as possible. According to the space inside the greenhouse and the requirements of tree shape growth, while retaining 3-4 basic scaffold branches per tree, remove large branches that disrupt the tree shape, weak branches, non-flowering branches, diseased and pest-infested branches, overly dense branches, and crossing or overlapping branches; thin out or flatten the upward-growing medium and long fruiting branches; leave the extension branches unpruned; leave medium and long branches unpruned; and cut back the downward-hanging fruiting branches. The pruning amount should be controlled at about 10% of the total, so that after pruning each peach tree retains 8
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What to do about fruit drop in jujube trees in summer? Growers need to prevent it in advance
Regulate the distribution of nutrients so that they flow more concentratedly to the jujube fruits. Measures: 1. Bend branches to open the angle. For relatively upright branches, change their direction by propping, pulling and other methods to disperse apical dominance; doing so can enhance ventilation and light penetration in the tree canopy, so that branches can also set fruit evenly in summer. 2. Remove sprouts and pinch the growing tips. For newly sprouted jujube shoots, when there is no room for development, remove them from the base or cut back to the rosette, keeping only 2-3 jujube fruiting spurs at the base. This can effectively reduce nutrient consumption, so that nutrients accumulate
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Detailed Explanation of Key Points for Raising Northern Chinese Parasol Tree Seedlings
The Chinese parasol tree, also known as green paulownia (Firmiana simplex), is a deciduous tree of the genus Firmiana in the Sterculiaceae family. Its crown is oval, the trunk is straight and upright, the bark is fresh green and smooth, and its emerald leaves cast dense shade. It has strong adaptability and grows rapidly, and is mostly planted as a street tree and in courtyards. At present it is recognized by more and more people, and has high promotion value and good market prospects. The seed sowing and seedling raising techniques for the Chinese parasol tree are introduced as follows. 1 Seed collection and preparation: select robust 15-30 year old
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Planting methods and care tips for the London plane tree
Morphology: 20-30 m tall, crown broadly bell-shaped; bark grayish brown to grayish white, peeling off in thin flakes. Young branches and young leaves densely covered with brown stellate hairs. Leaves palmately 5-7 lobed, deeply lobed to the middle, lobes longer than wide, leaf base broadly wedge-shaped or truncate, leaf margins toothed, palmately veined; stipules ring-shaped. Inflorescence head-like, yellow-green. Most nutlets clustered into whole-leaf spheres, 3-6 spheres in a string, persistent style long, bristle-like, fruit stalk long and drooping. Distribution: native to Europe; also distributed in India and Asia Minor. Habits: highly adapted to urban environments
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What is the difference between French plane tree, paulownia, and Chinese parasol tree?
The Chinese parasol tree is a deciduous tree of the family Sterculiaceae. It is not related to the tung tree (Euphorbiaceae), the paulownia of the family Scrophulariaceae, or the French plane tree (Platanaceae), despite sharing the name "tong." The Chinese parasol tree is tall and imposing, with a trunk free of knots that rises straight upward, holding aloft a great emerald-green umbrella of foliage with a spirited bearing. Its bark is smooth and jade-green, its leaves dense, and from trunk to branch it is lush throughout, appearing exceedingly elegant and clean - no wonder people also call it "qingtong" (green paulownia). "A single green jade stands upright, a thousand leaves like green clouds piled up" - these two lines of poetry capture to the fullest the charm of the Chinese parasol tree's green leaves and jade trunk, and the graceful shade it casts.
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The plane tree fluff problem is expected to be solved: Huazhong Agricultural University has cultivated hairless plane trees
It was learned from Huazhong Agricultural University that the university has cultivated hairless plane trees, which is expected to solve the problem of plane tree fluff pollution. The scientific name of the French plane tree is "Platanus", and it has advantages such as fast growth and a large, dense canopy, and is known as one of the "world's five major street trees." But from April to June each year, the seed balls of Platanus scatter and the pappus flies about, not only polluting the environment but also affecting people's health. For this flying fluff pollution, chemical pruning is mostly used in China, that is, spraying chemical agents to promote early shedding of the seed balls. But this method is labor-intensive and time-consuming, and is not easy to promote on a large scale.
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