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Detailed Explanation of Key Techniques for Irrigation and Drainage of Jujube Trees
Water is one of the indispensable substances for the life activities of jujube trees. The more vigorous the physiological activity of a part, the higher its water content: the water content of root tips and tender shoots is 60-90%. The water content of leaves is 80-85%, and the water content of the trunk is 40-55%. During its growth and development, the jujube tree consumes a large amount of water; for example, photosynthesis consumes 125-1000 kg of water for every 1 gram of dry matter produced. At the same time, to regulate tree temperature, the jujube tree consumes a large amount of water through transpiration. Water is also the medium for all biochemical
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What kind of tree is the Maire yew? Characteristics and cultivation value
Alias: Maire yew Scientific name: Taxus mairei (Lemee et Levl) S.Y.Hu Family: Taxaceae I. Tree characteristics The trunk is straight and full, the branches and leaves are dark green, evergreen through the four seasons, an excellent landscaping tree species; the wood is hard and dense, the sapwood pale yellow, highly resistant to decay, a special industrial and precious carving timber; it can be managed as a medicinal raw material forest to extract taxol and various other anti-tumor substances, and is a national first-class precious protected tree species.
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Rare Large Stand of Endangered Natural Yew Trees Discovered in Zhashui, Shaanxi
A rare large stand of natural yew trees, numbering more than 100,000, has recently been discovered in Zhashui County, Shaanxi, which is located in the Qinling Mountains. Some experts say that the yew is an endangered tree species preserved from the Quaternary glacial period, and that the extensive area and large number of this natural yew forest are rare. It is understood that Zhashui is located on the southern slope of the Qinling Mountains, in the transitional zone between the subtropical and warm temperate zones, with abundant rainfall and a forest coverage rate of 78 percent. It is rich in plant resources and has been known since ancient times as a "natural medicine storehouse." In Dongyuan Gully, Fenghuang Town, a yew was once found with a trunk circumference of 2.18 m, a canopy covering half a mu of land, and an age of more than 1,900 years.
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Four Practical Methods for Controlling Pests and Diseases in Flowers, Trees and Bonsai
Using pesticides to control pests and diseases in flowers and trees easily pollutes the environment. Here are 4 safe methods for controlling pests and diseases in flowers and trees. 1. Spraying method (1) Mix 0.5 kg of plant ash with 2.5 kg of water, soak for 24 hours, take the filtered clear liquid and spray it, which can kill aphids on plum blossoms, Chinese roses, pomegranate trees, etc. (2) Spray with a 0.1% concentration baking soda solution, which can control powdery mildew on flowers such as Chinese roses, chrysanthemums, garden balsam, cotton rose, and cineraria, with a control rate of over 80%.
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Pollution-free control methods for pests and diseases in flowers, trees and bonsai
Alcohol swabbing method: gently swab the leaves of orchids infested with scale insects using disinfecting alcohol; this can kill the scale insects, and in the following year there will rarely be any scale insect damage. Vinegar swabbing method: soak a cotton ball in edible vinegar (rice vinegar), then gently swab the leaves of camellias; this not only kills scale insects but also restores the damaged leaves to a green, glossy condition. Iodine swabbing method: when dry rot is found on the trunk of a stump bonsai, immediately use a blade wiped with iodine to scrape away all the rotted parts, reaching down to the xylem, then apply iodine to the main trunk; one week
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New bonsai variety of the Fireworks Tree, blooming as brilliantly as fireworks
The Fireworks Tree is a small shrub in the genus Clerodendrum of the family Verbenaceae, native to Africa and the Pacific Islands, and is also scattered in China. The Fireworks Tree has a beautiful plant form, elegant leaves, brilliant and colorful flowers, and dancing stamens. From June to November, it blooms continuously, with a flowering period lasting as long as half a year. The flowers are terminal, long-tubular, in loose clusters, with dense inflorescences; the floral tube is purplish red, and the front bursts open into 5 pure white, colorful, long strip-shaped petals, like twinkling stars, as if they were clusters of fireworks blooming at a festival. The exposed stamens are like golden threads and silver willows, bouncing and dancing nonstop with every breeze; the fruit after flowering
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Key Points and Detailed Methods for Pruning Young Pear Trees
For young pear trees, a single year without pruning and training will result in the loss of a reasonable tree shape and delay the arrival of the full fruiting period. With the promotion of fast-growing, early-fruiting, and high-yield cultivation techniques, shaping and pruning of young trees has become more important than pruning at any other stage. So how should shaping and pruning of young trees be carried out? 1. First, determine which tree form to train. There are many tree forms for pear trees, commonly including the tiered form, the modified central leader form, the single-trunk form, the espalier form, the open-center form, and the small-canopy fast-growing delayed open-center form. At present, the most commonly used is the small-canopy fast-growing delayed open-center form. Its
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Are the new shoots currently sprouting on the mandarin orange tree late autumn shoots?
Are the shoots currently sprouting late autumn shoots? My sugar mandarin oranges will have a trial crop next year. Should these shoots be kept or removed? When is flower bud differentiation? When should girdling begin? Currently, it is already late autumn, about 20 days away from the Start of Winter solar term. Shoots sprouted by sugar mandarin oranges in late autumn are of course late autumn shoots. The start of flower bud differentiation in sugar mandarin oranges generally begins at the end of October or the beginning of November. That is, before this time, the last autumn shoots of plants planned to bear fruit the following year should be able to fully mature before their flower bud differentiation period.
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Harvesting and Processing Techniques for Shiitake, Shaggy Mane, and Tea Tree Mushrooms
I. Scientific Harvesting and Processing Methods for Tea Tree Mushrooms. 1. Scientific harvesting of tea tree mushrooms: The optimal harvest time is when the cap color changes from dark reddish-brown to light flesh-brown and the partial veil has not yet ruptured. If they cannot be sold or processed in time, or if you are unsure about the harvest timing, they should be harvested early. When harvesting, require whole clusters or individual mushrooms to be harvested in one go, and remove the mushroom feet. 2. Scientific processing and storage of tea tree mushrooms: After harvesting, tea tree mushrooms can be sold directly or sold after preservation, or sold after sun-drying or oven-drying. Dried tea tree mushrooms easily absorb moisture and become damp, so they should be sealed in plastic
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How to control oleander aphids? Aphid control methods for garden ornamental trees
Distribution and damage The oleander aphid Aphis nerii Boyer de Fonscolombe, also known as the oleander yellow aphid, belongs to the order Homoptera, family Aphididae. It is distributed in Changchun, Shenyang, Baotou, Taiyuan, Ningbo, Guiyang, Urumqi and other places. It pierces and sucks sap from the new shoots and young leaves of oleander plants, affecting normal plant growth and flowering. Morphological characteristics: wingless female aphid body length 2 mm, body apricot yellow, antennae dark brown, legs black, cauda tongue-shaped, with 11-14 curved hairs. Winged female aphid oval, head and thorax black,
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