Planting Technology Lists
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What is the symptom of metasequoia red blight?
The symptom of red blight of Metasequoia glyptostroboides is that the disease usually starts from the lower branches and leaves of Metasequoia glyptostroboides, gradually develops and spreads upward, and finally leads to the death of the whole plant. The susceptible branches and leaves produce brown spots at the beginning, then expand into dark brown, and then the branchlets and withered branches turn brown and die. The disease can also spread to green branchlets, forming sunken brown ulcer spots that surround the main stem and cause the upper part to die; or do not surround the main stem, but cannot heal for a long time, with the growth of the main stem, the ulcer sinks deeply into the trunk, forming trench rot, and the young tree base cadres produce irregular grooves and become deformed. Under moist conditions, disease spots
2019-01-15 -
Technology of sowing and raising seedlings of Metasequoia glyptostroboides?
The techniques of sowing and raising seedlings of Metasequoia glyptostroboides are as follows: first, seed collection: Metasequoia glyptostroboides blossoms in the early and middle of March, and cone formation period from mid-October to early November of that year. Seeds can be collected when the fruit scales change from green to yellowish brown, fissured, and a small number of seeds protrude. After the cones are harvested, the cones are spread out or slightly exposed to the sun, the scales are opened, and the seeds can be removed. Second, seed treatment: soak the seeds in cold water for 3 to 5 hours before sowing, so that the seeds can fully absorb water and expand, so as to facilitate germination and ensure neat seedling emergence. Third, sowing: from late March to April
2019-01-15 -
Semi-lignified softwood cuttings of Metasequoia glyptostroboides?
The seedling raising technique of semi-lignified softwood cuttings of Metasequoia glyptostroboides is: semi-lignified cuttings can also be used to raise seedlings in autumn, because at this time the branches have high maturity, winter buds have been formed, and there are no more branches in the same year after cutting. And only finish taking root. At the same time, with the further development of winter buds, the stem of seedlings will be more substantial, and an independent seedling transplanting culture can be formed when sprouting in spring. Autumn semi-woody branch cutting, intensive management time is short, unit area can be dense more cutting, the yield is very high, so it is very popular. Autumn sowing time, from mid-August to early September, cut
2019-01-15 -
Metasequoia glyptostroboides
Metasequoia glyptostroboidesGoldRush' is a cultivated variety of Metasequoia glyptostroboides developed in recent years. Deciduous trees, fast-growing, sexually strong, reddish-brown bark; leaves flat, linear, opposite in 2 rows on short branches; new leaves are golden in spring, summer and autumn of the year. Metasequoia glyptostroboides are mostly introduced from Japan, which have strict requirements for microclimate, high requirements for air humidity, and like water and wet climate. At present, in Beijing, Jiangsu, Shanghai and Zhejiang
2019-01-15 -
Cultivation techniques of Metasequoia glyptostroboides in Jiangxi Province
Metasequoia glyptostroboides is an ancient and rare tree species originating in Hubei Province of China, which has been listed as a national first-class protected tree species. It is fast-growing, light-loving, cold-tolerant and adaptable, and has been introduced and cultivated in the north and south of our country. The origin is distributed at an altitude of 900-1500 meters, mainly growing in valleys, streams and mountain valleys with good drainage. However, in the low wetlands where the groundwater level is too high and long-term stagnant water, the growth is poor. Generally speaking, the river alluvial soil in the plain is better for introduction, while the hilly and mountainous areas grow vigorously in the mountain yellow soil, especially in mountain valleys and humid areas.
2019-01-15 -
Hardwood cuttings of Metasequoia glyptostroboides
Shading method is often used to raise seedlings of Metasequoia glyptostroboides. This requires the use of a sunshade net and the cover of the shade every day. The experimental study on full-light seedling cultivation of Metasequoia glyptostroboides hardwood cuttings shows that the general survival rate can reach more than 90% by using appropriate methods. First, the land for fine soil preparation and seedling cultivation needs flat terrain, deep soil and convenient drainage and irrigation. In general, the land is turned deep before winter and flattened after thawing, with phosphate fertilizer 10 to 15 kilograms per mu, border width 1.5 to 1.7 meters, border length depending on the number of cuttings, row spacing 12 to 15 centimeters, plant spacing 3 centimeters, planting 1 per mu.
2019-01-15 -
Artificial pollination of Metasequoia glyptostroboides?
The artificial auxiliary pollination method of Metasequoia glyptostroboides is as follows: when the flower of Metasequoia glyptostroboides is unisexual and monoecious, and the male bulb changes from green to yellow, the single plant with strong tree body and more inflorescences is selected, the inflorescences with branches are picked for indoor culture, and pollen is collected. cutting the flowering branch into about 20 cm, cutting the base into transverse flat sections, tying a bundle every 20 to 30 branches, aligning the base of the branches, attaching a ball of absorbent cotton soaked in nutrient solution to the cross section of the branch, wrapping the cotton ball with plastic paper (preventing evaporation of nutrient solution), hanging the bundled inflorescences indoors, laying white light under the cotton ball
2019-01-15 -
Study on cultivation techniques of Mother Forest of Picea crassifolia
Qinghai spruce is the main native tree species in Qilian Mountains. It has a long history, wide distribution and large area. It is one of the main afforestation tree species in Tianzhu and even the whole northwest region. The main advantages of this tree species are cold resistance, drought tolerance, barren resistance, strong resistance and extreme low temperature of-30 ℃. It is a lateral root tree species with good soil fixation, strong ability of water conservation and soil conservation, evergreen in winter and summer, beautiful crown shape, and is the main tree species for greening in cities, courtyards, parks and passageways.
2019-01-15 -
Sowing and Seedling raising techniques of Picea crassifolia
Qinghai spruce, Pinaceae spruce, evergreen tall trees. 1-year-old shoots light green-yellow at first and pink-yellow or pink-brown at later stage, more or less hairy; leaves quadrangular, slightly curved or straight, 1.2-3.5 cm long and 2-3 mm wide, apex obtuse, or with obtuse tip, cross section tetrahedral, with stomatal lines on all sides; flowers unisexual, monoecious. Cone conical, cylindrical or oblong cylindrical, pendulous, 7-11 cm long, 2-3.5 cm in diameter, seeds about 3.5 mm long, forsythia about 1.3 cm long, young fruit purple
2019-01-15 -
Qinghai spruce
The producing area is distributed in Qinghai, Gansu, Ningxia and Inner Mongolia. Morphological characteristics of trees, up to 23m high, DBH 60cm. Annual branches are light green, biennial branches are light pink or brownish yellow, often covered with white or no powder, old branches are light brown to brown; winter buds are conical, and the tip of the persistent bud scale at the base of the branchlet is often spreading or inverted. Leaves quadrangular-striate, slightly curved or straight, long 1.0~2.5cm, ca. 2mm wide, apex obtuse or with obtuse tip, cross section quadrangular. Globules unisexual, monoecious
2019-01-15