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How much does a Korean pine sapling cost per tree? Introduction to grafting methods
There are more than eighty species of pine trees in the world, and they are widely distributed, and can be used for ornamental, medicinal or industrial manufacturing purposes. Today we will introduce the Korean pine, including how much its saplings cost per tree and what grafting methods there are. 1. Korean pine
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How many years does it take before a Korean pine begins to bear fruit?
The Korean pine is an evergreen tree of the Pinaceae family, reaching up to 40 m tall, with bark on mature trees that is grayish-brown or gray with rectangular scaly plates, needle-like leaves, and egg-shaped conical cones. So, how many years does the Korean pine take to bear fruit? 1. How many years does the Korean pine take to bear fruit? The Korean pine bears fruit very late; under natural forest conditions
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How many years after grafting does a Korean pine bear fruit?
The pine tree is a common sapling in daily life. After a few years of planting, it will grow fruits, which are very delicious and rather expensive, but very popular among people. So how many years after grafting does a Korean pine bear fruit? 1. How many years after grafting does a Korean pine bear fruit? A grafted Korean pine generally grows for 12 years and can then bear
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Carbon sink patterns of old-growth Korean pine forests in Changbai Mountain revealed
On December 23, the project "Study on Carbon Sink Function of Old-Growth Broad-Leaved Korean Pine Forests in Changbai Mountain," completed under the auspices of the Jilin Changbai Mountain Forest Ecosystem National Field Scientific Observation and Research Station, passed expert review organized by the Changchun Branch of the Chinese Academy of Sciences in Changchun. Experts held that the integration of multiple methods in this project, along with research on flux changes of components and process mechanisms, has reached the international advanced level. As the main body of terrestrial ecosystems, forests' carbon cycle processes and mechanisms play an important role in understanding forest carbon sink functions and their impact on and response to global climate change, while old
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Korean pine
A gymnosperm of the family Pinaceae, also known as fruit pine, red fruit pine, Korean pine, etc. Evergreen tree, up to 50 m tall, leaves 6-12 cm long, in bundles of 5 needles, leaves thick, hard and straight, with 3 medial resin canals. Cones 9-14 cm long, yellow-brown when mature. Seeds large and wingless, 1.2-1.6 cm long, with 13-16 cotyledons. Shallow roots, strong cold resistance, wood soft, containing pine resin, highly rot-resistant, widely used; the needles can be used to extract vitamin C; the seeds are edible, with an oil content of up to 70%, and when used as medicine have wind-dispelling,
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What are the key points of Korean pine sowing and seedling-raising techniques?
The method for sowing and raising Korean pine seedlings is as follows: spring sowing is preferable. In Northeast China, mid-April to early June is better. Broadcasting or drilling in rows are both acceptable; in recent years, wide-row sowing is usually used, with a sowing width of 8 to 10 cm. After sowing, firm the soil once first, then cover with soil, with a soil cover thickness of about 2 cm. If timely irrigation is possible, the seedbed does not need to be covered with grass after sowing, and full-light seedling raising can be carried out. To eliminate weeds, after sowing and before seedling emergence, nitrofen at 3 grams per sq m, atrazine at 1 gram, or prometryn at 2 grams can be sprayed on the seedbed surface; do not irrigate within 10 hours after spraying. The sowing rate for Korean pine is 3000 to 37
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Complete Analysis of Korean Pine Seed Collection Time and Methods
The time and methods for collecting Korean pine seeds are as follows: in natural Korean pine forests, the proportion of seed-bearing trees in 80-to-100-year-old stands accounts for over 91%. To solve the problem of insufficient Korean pine seeds, clonal seed orchards have been established, but they have not yet produced large quantities of seed. In natural forests, stands with good site conditions and vigorous growth are selected and designated as seed production stands, with intensified tending and management to prepare for seed collection. Korean pine cones mature from September to early October. When the cones turn from green to yellow-green and some seed scales begin to split, they enter the early ripening stage. After that, the seed scales gradually turn yellow, and individual cones begin to fall
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Detailed Explanation of Key Techniques for Establishing a Seed Production Forest with Large Korean Pine Seedlings
Korean pine (Pinus koraiensis), of the family Pinaceae and genus Pinus, is an evergreen coniferous tree. It is mainly distributed in the Greater Khingan Mountains and Changbai Mountain areas of China, where its Korean pine forests form the climax community of the region, playing an enormous social, ecological and economic role. In the early years of the founding of New China, to meet the needs of economic construction, Korean pine timber was excessively logged, causing a massive decline in Korean pine trees; at present, only about 5 million mature Korean pine trees remain. Therefore, establishing Korean pine seed production forests on a large scale, rapidly and with high quality is of great
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Detailed Explanation of the Top-Bud Cleft Grafting Technique for Korean Pine
Korean pine (Pinus koraiensis Sieb. et Zucc.) is a tall tree of the genus Pinus in the family Pinaceae, with a full and straight trunk. In natural Korean pine forests, the average tree height can reach 25-30 m, the diameter at breast height can reach 40-80 cm, and the lifespan can reach 300-400 years. In places with suitable growing conditions, the tree height can reach 40 m, the diameter at breast height can reach 200 cm, and the lifespan can reach about 500 years; its timber is excellent, with straight grain, strong compressive strength, rich in resin, strong decay resistance, and high craft value.
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What are the key technical points for tending and managing Korean pine (Pinus koraiensis) seedlings?
The tending and management of Korean pine (Pinus koraiensis) seedlings is as follows: the emergence period of Korean pine takes about 20 to 30 days. When the temperature is above 16°C, germination is most vigorous. Attention should be paid to watering to prevent drought, and to preventing damage from birds pecking. During the seedling stage, roots grow relatively fast; the main root can reach 10 cm long, accounting for about 40% of the annual growth, and can produce 4 to 5 lateral roots. However, the height growth of the seedlings is very small. Therefore, the resistance of the seedlings is very poor. Attention should be paid to watering to lower the temperature, preventing sunscald, and timely topdressing and loosening the soil and weeding. From the time Korean pine seedlings form terminal buds until the growth rate declines, it lasts about
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