Planting Technology Lists
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Biological characteristics, ecological characteristics, seedling raising and afforestation techniques of sycamore
Chinese sycamore (Firmianasimplex (Linn). W.F.Wight) belongs to the genus of sycamore (Sterculiaceae). Deciduous trees with height of 15m and 20m, DBH of 70cm. The trunk ends are straight and the bark is green when young and gray-green when old. The twig is green. Leaves suborbicular, leaf long 30cm, leaf width 11~20cm, simple leaves alternate, 3-5 palmately parted, petiole as long as leaf, base cordate, lobe apex
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Sycamore planthopper
The morphological adult is 5.6 to 6.9 mm long, yellowish green, transverse width of the head, deeply parted top, forehead exposed, compound eye hemispherical protruding, brown antennae yellow, wings colorless and transparent, wing veins yellow, claws black; yellowish belly back, brown ribbon in front of each node. Egg spindle-shaped, 0.5 to 0.8 mm long, slightly transparent, yellowish or yellowish brown at birth, reddish brown before hatching. When the nymphs are newly hatched, they are oblong, 3.0 to 5.0 mm long and dark in color, and the wing buds are obviously visible.
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Sycamore family
Latin name: Sterculiaceae English name: introduction to SterculiaFamily: trees or shrubs, sparse herbs or vines; often covered with stellate hairs; stem bark rich in fiber, often mucus. Leaves simple, palmately compound, alternate, sparsely opposite, stipules caducous. Inflorescences axillary, sparsely terminal, panicle, Cymes, racemes or corymbs, sparse flowers solitary; flowers unisexual, polygamous or bisexual; sepals 5 (3-4), slightly connate or separated, valvate; petals 5 or absent, separate or basally connate with androgynophore.
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Field cultivation and management techniques of sycamore
1. Choose sunny, warm and moist, well-drained, deep and fertile soil for land preparation. two。 Seed propagation, cuttage and root division are often used in propagation. After the seeds are ripe, they are harvested for autumn and spring sowing. Sowing as soon as it is picked, seeds can also be stored until spring sowing in the following year because of irregular seed germination rate. Soak seeds with wet sand stratification or warm water to accelerate germination before sowing. Make a seedbed before sowing, open a shallow trench according to the row spacing of 30cm, and then sow in the ditch or on demand, with a sowing rate of 75-120kg per hectare. Reply after broadcast
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Cultivation of Chinese parasol trees
Chinese parasol tree, also known as green tung tree, is a deciduous tree belonging to parasol family. Crown oval, trunk end straight, bark green smooth, lateral branches stout, emerald green. Chinese parasol tree is a positive tree species, like warm and humid climate, widely distributed in China, cold resistance is not strong, in acid, neutral and calcareous soil can grow. Deep root sex, ponding easy rot root, suffer waterlogging 3 to 5 days to be able to die in high temperature season. It grows fast and has a long life. Leaves grow late, leaves fall early. Leaves, flowers, roots and seeds can be used as medicine, seeds can also be fried food and oil. Common seeding method of reproduction
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technique of sowing and seedling raise of Chinese parasol tree in spring (II)
Seedling management 1. Loosening and weeding After sowing, dicotyledonous weeds such as Lepidium chinensis, Rhynchus chinensis and Amaranthus chinensis will breed in large numbers, which can be manually removed or sprayed with 1/1000 of 2.4-D. Weeding to "except small, except early, except" for the principle of loose soil thickness 2 to 3 cm. 2. Fertilization Irrigation Fertilize when the seedlings are 3 to 5 cm high, apply 8 to 10 kg compound fertilizer per mu, combine irrigation application, and then water according to soil moisture. 3. Disease and pest control During the seedling stage of Chinese parasol, attention should be paid to the prevention of seedling blight by early sowing and high ridge seedling raising.
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The method of sowing and raising seedlings of sycamore in spring
Indus is a deciduous tree of the genus Indus of the family Indus with straight ends and green bark. It is an excellent street tree species and has been widely used in urban and rural greening in recent years. Through several years of practice, the author has explored a set of techniques for raising seedlings by spring sowing of sycamore, which is introduced as follows: the sowing time can be carried out in Beijing Plain from late March to early April after soil thawing in spring. The soil is prepared to turn the soil 30 cm deep before sowing, remove weeds, roots and other sundries, and then do ridges or bed and soil disinfection to do ridges and bed sycamore seedlings should be raised in high beds and wide ridges.
2019-01-15 -
What are the prevention and control methods of sycamore diseases and insect pests?
The prevention and control methods of sycamore diseases and insect pests are as follows: first, remove and burn the fallen leaves, and spray Bordeaux liquid or chlorothalonil during the disease period. Second, spraying soap and petroleum emulsion in early spring to kill sycamore planthopper. Third, kill longicorn beetle adults artificially, and inject fenitrothion and dichlorvos in the tunnel. Fourth, other pests nymph stage or larval stage, spray dimethoate, dichlorvos, trichlorfon and other agents.
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How to distinguish between Fatong, sycamore and paulownia
In the construction of urban greening and beautification, it is an important work to identify and plant tree species. The three tree species, Fatong, paulownia and sycamore, look like the three sisters in urban landscaping. In fact, these three tree species are different families and genera, and there are also great differences in shape. Fatong is a large deciduous tree of the genus Platanus of the family Platanus. Fatong is called Fatong because its leaves are like sycamore, which was introduced from abroad in old China and planted in the French concession in Shanghai. Fatong is actually three-ball Platanus and two-ball Platanus.
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Talking about the control of sycamore planthopper
Sycamore is one of the main urban landscaping tree species in the north, with tall and straight trunk, beautiful leaf shape and good shading effect. However, the harm of sycamore planthopper is great, which greatly affects its ornamental effect. After long-term observation, garden staff gradually found out the law of occurrence and development of sycamore planthopper, carried out effective control, and accumulated some experience, which are introduced as follows for reference and reference. I. damage characteristics and symptoms of sycamore planthopper, also known as sycamore planthopper, which belongs to the family Homoptera. With nymphs, adults in sycamore leaves or
2019-01-15