Cultivation and Management of Populus tomentosa
Korean Buxus is an evergreen shrub with strong cold resistance. With anti-sand, drought resistance, like the characteristics of shade.
In the semi-shady environment can be evergreen, in the landscaping project can be hedgerow, magic pattern flower beds, filling balls and a variety of pattern modeling.
North Korean boxwood likes fertile land. Before sowing, the soil should be deep ploughed 30 cm organic fertilizer as base fertilizer, seedbed ditch bottom with wood square leveling. After sowing, cover soil 3 cm thick, cover grass 5 to 10 cm, cover grass three times in the middle of April of the next year when there is no frost, pay special attention to cold current around May 1, cover grass in time to prevent frost if the weather changes.
Summer good intertillage weeding, do not topdressing that year, so as not to grow too prosperous, affecting the lignification of that year. Wind protection measures can be taken before winter, and sand deposits can also be dug out.
Seedbed winter advantage is not subject to time constraints when transplanting the following year, not slow seedlings, the disadvantage is that the seedlings will die. Excavation of sand storage should be planted early in spring, and special attention should be paid to waterproof when sand storage.
Field cultivation, row spacing 40 cm, plant spacing 10 cm, general mu seedlings about 15,000, planting can be 30 jin diammonium phosphate per mu as base fertilizer, after each spring topdressing urea dosage 50 jin per mu. Engineering seedlings can be made in 3 to 4 years.
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The North Korean yellow poplar was sown at the right time.
Recently, due to the increasing use of Populus tomentosa in the north, manufacturers have begun to use sowing instead of cutting to propagate the variety, but the technical details are generally unfamiliar. Experts warn that the life span of Populus tomentosa seeds is short after maturity, so it is most appropriate to sow seeds from now on to September 20. Populus tomentosa belongs to the evergreen shrub of Populus tomentosa. It can be transplanted throughout the growing season, can withstand the low temperature of-35 ℃, has strong sprouting power and is resistant to pruning, and is suitable for hedges or pruning into various patterns. According to Donggang City, Liaoning Province
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Korean yellow poplar
Zhang Liyuan Korean yellow poplar originated from Korea and was introduced into Liaoning in the 1930s and 1940s. after more than 60 years of artificial cultivation and natural domestication, its cold tolerance has far exceeded that of the original species and is suitable for planting in the south of Changchun. At present, it is cultivated in every city of Liaoning Province, and it has been cultivated in Dandong area in recent years, and also in some areas of Jilin Province. The variety is an evergreen shrub with leathery leaves 1 to 2 meters high, 0.8 to 1.4 cm long and 0.4 to 0.8 cm wide, with a slightly retrorse margin and inconspicuous lateral veins.
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