The French sycamore belongs to the foreign species, but still able to adapt to the city's soil and water environment, so you can basically rule out the cause of plant death caused by soil and water. On the other hand, the French sycamore belongs to the valuable species, a diameter of 20 centimeters in the adult tree value can reach 4,000 yuan, garden staff on this plant can be said to be well cared for. After years of exploration and maintenance, in recent years the survival rate of French sycamore plants than in previous years has been a great improvement, so that the same can be ruled out maintenance is not in place to cause the cause of plant death. French sycamore scientific name bellflower. Department of foreign species, native to southeastern Europe and western Asia, often planted as landscape plants on both sides of the road. In the city has been planted for many years, earlier had not adapted to the soil and water environment and a large number of deaths, with the passage of time, this tree has adapted to the city's environment, the survival rate has also been improved. The bellflower (commonly known as Fagus sylvatica) is a deciduous tree, preferring a warm and humid climate, suitable for growth in the soil layer is deep, fertile soil, irrigation is convenient, well-drained soil. Because the species does not tolerate stagnant water, the water table is less than one meter is appropriate. Its trunk is high, branch development, leaf shade, strong branching force, pruning resistance, rapid growth. After shaping, the tree shape is beautiful. Resistant to smoke and dust, has a strong ability to purify the air, is China's cities, roads and courtyards valuable greening tree species. At the same time, because of its solid wood, beautiful texture, is also one of the good timber species. Fagotung seedlings, used to use the mother tree cuttings of one to two-year-old seedlings. Due to cuttings, spikes first germination after rooting, in the dry climate, evaporation in the Kashgar area, cuttings seedling survival rate has not been high. Sowing seedlings is conducive to the selection of new species, and the root system is developed, robust seedlings, strong wind resistance. However, because the tree seeds are as small as needles, poorly developed seeds, empty grains, and very easy to lose the ability to germinate, sowing seedlings is very difficult, conventional technology is very difficult to keep seedlings. This year, we self-selected topics, procurement of seeds, in Shule County, Kashgar region for the first time to carry out the research on practical techniques of seedling sowing of phacelia. After efforts, has begun to bear fruit. According to the investigation on September 8, 380m2 keep 51,000 seedlings. Seedling average height of 80cm, root diameter of 0.7cm, up to 1.7m, root diameter of 1.4cm. now will be sown seeding seedling technology is summarized as follows: 1 seed treatment Falun Gong fruit ball after maturity, hanging in the branches of the mother tree, through the winter does not fall, the conditions of the following spring before the seed bagged in sacks. Before sowing will be loaded into the sack of fruit balls, gently knocked, broken fruit balls, in order to make the seeds with good soil, can be separated from the fluffy net seed. Specific method is: after crushing the fruit ball, pick up the broken fruit ball in the middle of the small ball heart, with the hand in the iron sieve repeatedly rubbed sieve, will be fluffy and needle-like seed separation, and then by wind selection, the seeds and fluffy separation, you can get net seed, bagged to be sown. 2 seedbed preparation Select wind, irrigation is convenient, well-drained, non-saline, fertile and loose farmland for nursery. First irrigation bottom water, increase the application of basic fertilizer river sand (per 667m2 Shi rotting cattle, sheep mixed circle fertilizer 300 ~ 500kg, the number of river sand depending on the soil quality), after deep plowing and fine leveling, leave a good walkway, ditching to do the ridge. Ridge should be consistent with the direction of irrigation, ridge and ridge connected to the ridge, ridge length 10m, ridge height 15cm, the bottom of the ridge is 60cm wide, ridge width 30 ~ 40cm, irrigation ditch bottom width 30cm, mouth width 60cm, ridge slope patting solid, ridge surface fine flat, to ensure that the ridge and ditch flooding uniformity, the difference between the two ends of the ridge and strive to be consistent. 3 Seedling time Seedling time in the spring is appropriate. Specific time should depend on the weather, when the average daily temperature of about 15 ℃ can be sown. Local generally in April 20 to May 1 for the appropriate period, early or late will greatly affect the seedling rate. Our experiment, May 1 sowing. 4 Seed treatment Before sowing, soak the seeds in cool water for 24h, and replace the water once in the middle. After that, the seeds were taken out and placed in a sunny and wind-sheltered condition to increase the temperature. In order to maintain high temperature, high humidity germination conditions, can be used under the old sacks, covered with transparent plastic film. Conditions can also be in the greenhouse to increase the temperature. Check several times during the warming period, each time should be stirred to spray water moisturizing, so that the seeds are heated evenly, germination neat. If the film temperature can be maintained at about 30 ℃, 1 ~ 2d see a large number of seeds spitting white germination, immediate sowing. 5 sowing technology should be appropriate dense sowing, per 66.7m2 net seed dosage mastered in 3 ~ 5kg or so appropriate. Sowing should be arranged in the evening, preferably on cloudy days. Sow the seeds evenly on the ridge, the density of basically invisible soil for good, and then use the prepared non-alkali clear river sand cover, cover the thickness of not see the seeds to the degree, and gently pressed, in order to facilitate the seed and sand close, conducive to rooting. 6 careful management after sowing, immediately fine stream furrow irrigation, to prevent washout ridge surface. Ridge irrigation depth, in order to moisten the ridge surface is appropriate. In order to maintain high humidity on the ridge, after sowing every morning and evening to spray water 1 time. General 5 ~ 7d after sowing began to emerge, half a month for the centralized emergence period. Early nursery management, in the 45d after sowing, in addition to sowing furrow irrigation, and then every 7d or so furrow irrigation 1 time, and adhere to the ridge every morning and evening to spray 1 time. Because of the bellflower seedlings like high temperature, high humidity environment, sowing seedlings, in the seedling rooting, seedling growth period, according to the requirements of adhering to the furrow irrigation and ridge spraying, which is the key to the success or failure of the bellflower seedling sowing. June to August, is the bellflower seedling growth period, we must do a good job of timely fertilizer, irrigation, erasing the lateral branches, plowing and weeding, pest control and other management work. Fertilizer can start from the middle of June. The first fertilizer can follow the seedling ridge on both sides of the bottom of the slope open ditch, after the application of well rotted stable fertilizer based on the amount of not less than 150kg per 66.7m2 stable fertilizer, plus fast-acting fertilizers 1.5kg, of which 1kg of phosphoric acid diamine, urea 0.5kg. later with the growth of the seedling, divided into four times per 66.7m2 diamine phosphate 7kg, urea 3kg. every fertilizer after the immediate irrigation. From the first fertilizer to the end of August *** irrigation 6 to 7 times. In addition, in the peak growth period of seedlings, can also be used outside the root of the fertilizer, foliar spraying of potassium dihydrogen phosphate and spraying treasure 3 to 5 times, to ensure that the seedling robust growth. In order to enhance the strength of the lignification of seedlings, stopping water before autumn (local generally before September 10). 10 ~ November 2 months, depending on the moisture content of the nursery, small ditch irrigation 1 ~ 2 times before the end of November full irrigation of wintering water, in order to facilitate the safety of overwintering. In this region, cold winters, spring more late frost, 1 to 2 years seedlings are susceptible to frost damage, before winter should be buried soil frost, transplanted in the spring of the following year, 3 to 4 years to cultivate green with qualified seedlings.