Zhong Shan Shan is a hybrid of Taxodium distichum, Taxodium ascendens and Mexican Taxodium. It has rapid growth, moisture resistance, salt and alkali resistance (pH 8 to 8.5, salt content 0.1% to 0.15%), strong wind resistance, wide adaptability, and trunk uprightness. , beautiful tree, less pests and diseases, material quality (Material can be comparable to Douglas-five) and other advantages. The growth period of Zhongshan Shanshan is longer, and the leaf stage is about one week earlier than that of Taxodium, Chigi, and Metasequoia. The defoliation period is delayed by about 1 month compared with Metasequoia, Taxodium, and Chisan. The green leaves in winter become orange and reddish brown after being frosted. They are long-lasting and beautiful. The short-term accumulation of water in the year of transplanting does not affect survival. After survival, they can accumulate water all year round to form a water forest. Therefore, Zhongshan Shanshan can be widely used in shelterbelts in Taihu Lake, shelterbelts in the river, greenery in four sides, farmland forests and roads, etc. The main points of transplanting techniques are as follows:
First, the opening of the site requires that the requirements of Zhongshan Shan is not high, but in the dry and barren land growth, should choose a deep, wet and fertile land afforestation. The planting density of afforestation on both sides and sides of the river can be determined according to site conditions, wind power, wind direction, etc. The number of planting lines can be from one line to several tens of lines with a spacing of 2m2m or 1m2m. The dislocational triangles are planted and deployed. Deep planting, general digging specifications 60cm60cm or 80cm80cm, digging points should pay attention to the topsoil and subsoil points open on both sides of the planting hole, backfill the top soil when planting seedlings, backfill the subsoil. Put enough organic fertilizer base fertilizer in the hole, fertilizer and soil should mix well.
Second, the transplanting time requires that Zhongshan Shanshan is a fast-growing tree species. The best time for transplanting is from mid-November to March of the following year.
Third, the seedling specifications and pruning requirements of the species should choose "Zhongshanshan 302" (fallen cedar Mexican drop cedar) or "Zhongshanshan 401" (Cycodium Mexican drop cedar). Seedlings should use 1.5 to 2m high 2-year-old soil ball seedlings planted (soil ball outsourcing straw rope), to ensure the survival rate of afforestation, but also can choose to use 1 year old rootless seedlings (more than lm, diameter 2cm above) planting. Select seedlings with a diameter of more than 3 cm and afforestation. Care should be taken to select seedlings that grow robustly, are well-shaped, round crowns, and have a well-developed root system. Sparse more than 2/3 of the lateral branches when the seedlings are lifted, and the main stems are not truncated to maintain a beautiful tree shape. , Cut and cut to close to the trunk, smooth without leaving a knot.
IV. Planting and management requirements Bare-rooted seedlings must be planted by afforestation. Large seedlings with a seedling age of 2 years or more must be transplanted. The seedlings should be planted with soil balls and properly planted. The depth of planting should be 5-10? Set the root water. Afforestation shall be carried out in areas where the topography is poor and water retention is poor, and the straw or mulch film shall be timely applied after the rooting water is poured to ensure water conservation. After the new planting, if it does not continue to rain and drought, it should be timely flood irrigation drought, and to maintain a high water level channel. For seedlings whose height exceeds 3 meters in height, scaffolds should be constructed in time (a well-shaped bracket can be built in forests) to prevent wind damage. Zhongshan Shanshan has no special pests and diseases. During the growing stage, we must pay attention to timely weeding and weeding, and set up topdressing to promote early-onset seedlings.
First, the opening of the site requires that the requirements of Zhongshan Shan is not high, but in the dry and barren land growth, should choose a deep, wet and fertile land afforestation. The planting density of afforestation on both sides and sides of the river can be determined according to site conditions, wind power, wind direction, etc. The number of planting lines can be from one line to several tens of lines with a spacing of 2m2m or 1m2m. The dislocational triangles are planted and deployed. Deep planting, general digging specifications 60cm60cm or 80cm80cm, digging points should pay attention to the topsoil and subsoil points open on both sides of the planting hole, backfill the top soil when planting seedlings, backfill the subsoil. Put enough organic fertilizer base fertilizer in the hole, fertilizer and soil should mix well.
Second, the transplanting time requires that Zhongshan Shanshan is a fast-growing tree species. The best time for transplanting is from mid-November to March of the following year.
Third, the seedling specifications and pruning requirements of the species should choose "Zhongshanshan 302" (fallen cedar Mexican drop cedar) or "Zhongshanshan 401" (Cycodium Mexican drop cedar). Seedlings should use 1.5 to 2m high 2-year-old soil ball seedlings planted (soil ball outsourcing straw rope), to ensure the survival rate of afforestation, but also can choose to use 1 year old rootless seedlings (more than lm, diameter 2cm above) planting. Select seedlings with a diameter of more than 3 cm and afforestation. Care should be taken to select seedlings that grow robustly, are well-shaped, round crowns, and have a well-developed root system. Sparse more than 2/3 of the lateral branches when the seedlings are lifted, and the main stems are not truncated to maintain a beautiful tree shape. , Cut and cut to close to the trunk, smooth without leaving a knot.
IV. Planting and management requirements Bare-rooted seedlings must be planted by afforestation. Large seedlings with a seedling age of 2 years or more must be transplanted. The seedlings should be planted with soil balls and properly planted. The depth of planting should be 5-10? Set the root water. Afforestation shall be carried out in areas where the topography is poor and water retention is poor, and the straw or mulch film shall be timely applied after the rooting water is poured to ensure water conservation. After the new planting, if it does not continue to rain and drought, it should be timely flood irrigation drought, and to maintain a high water level channel. For seedlings whose height exceeds 3 meters in height, scaffolds should be constructed in time (a well-shaped bracket can be built in forests) to prevent wind damage. Zhongshan Shanshan has no special pests and diseases. During the growing stage, we must pay attention to timely weeding and weeding, and set up topdressing to promote early-onset seedlings.
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